Frequently asked questions and answers!
01) User registration
Please check the SPAM folder in your e-mail. It is also worth paying attention to whether you are looking for the activation link on the e-mail for which we registered the account.
If the problem is still not solved, please contact us by e-mail at email@example.com.
The password can be changed or reset when logging to EasySolar App here. Choose the Forgot your password? option. In the next step you have to write your email adress.
After that, on your email you will have email from EasySolar to change the password.
Then we will be redirected to the EasySolar page.
We have to enter a new password, confirm it by re-entering it and we can use the EasySolar application!
02) User's account
We can delete the user by clicking on the trash can icon in the upper right corner of the screen. Projects made by the deleted user will still be visible in the company account.
Account activation can take up to 24h after payment.
In case of questions please contact us by email firstname.lastname@example.org or our Chatbot (on the right below).
To purchase access to our application, you can choose subscription payment with automatic card payment.
You cannot cancel your subscription before it has ended. It is possible to send a complaint to our e-mail address and in a justified reason we can consider it positively for you.
VAT invoices are sent automatically after the payment is made. If you have not received a VAT invoice, please choose the Invoices and subscription management tab, then Orders or inform us about it by sending a message to the address email@example.com or use the Chatbot option “Contact with us” (bottom right corner). We will send the invoice again.
Please contact us by email at firstname.lastname@example.org or via Chatbot (bottom right corner).
Unfortunately, at this moment we are not sending any notifications until the end of the paid period. A reminder about the re-payment is sent when the subscription ends.
04) EasySolar App- how to start?
In our App you can use english, polish, deutsch, spanish, portuguese, norwegian, swedish, dutch and ukrainian language.
You can change the language in the upper right corner of the page.
To use the EasySolar Application, you do not need to install any additional program on your computer / laptop. To do this, select the Start! option on our website.
or open the application page directly: https://web.easysolar-app.com/ and then log in or create new user account.
Does the application prepare an application to the power grid operator for connecting a photovoltaic installation?
We do not offer this option at the moment, but we plan to add it in the future.
The EasySolar application is a browser application, so you do not need to download any additional software.
05) Company settings
I entered the wrong phone number when registering my account. I would like to change it now. How can I edit it?
The phone number displayed on the offers can be changed by clicking on the initials in the upper right corner of the screen and going to the “Your profile” tab.
Is it possible to change the size of the company’s logo on the pages of the documentation prepared for the client?
In this moment we have just only one logo size, which is in prepared documentations.
The ability to change the size of the logo will be possible in the next update of our EasySolar app!
Please send an email to email@example.com or use the Chatbot “Contact with us” option. Please provide new data and information what is to be changed.
Yes, in the offers generated by individual employees of the company, their contact details (telephone number and e-mail address) are displayed.
Can I set more than one color on the company’s documentation? I would like to adjust the offer to the company colors (more than 1).
Yes, after generating a PDF offer, it can be fully personalized, including changing the colors of the offer.
You can change the color of the main offer and two additional colors (text and other elements).
- Set up a company logo,
- change the company name,
- company address
- set the website,
- set the main color of the offer,
- Pick the currency.
All settings can be predefined in the “company setting” tab.
You can also change them after generating PDF offer.
06) Team management
In our application, users can have three different access profiles to their account.
We can distinguish:
- Owner role – the person who created the main company account,
- makes payments for access to the application,
- invites new users to his company in the application,
- the owner has access to the company’s settings (e.g. logo change),
- can change the access profile for the Administrator and User,
- has the ability to assign individual clients to Administrators and Users,
- has access to the company’s warehouse of panels and inverters – adding new items and editing existing ones,
- Administrator role – a user who is “under” the Owner, but “over” the User,
- can invite new users to the application,
- can change the settings of access to clients and panels / inverters for a User,
- has the ability to assign individual clients to Users,
- has access to the company’s warehouse of panels and inverters – adding new items,
- he cannot change the role and access for his account.
- User role – user with the least access to settings,
- the User does not have access to the list of other Users in the company, and therefore cannot change the access settings for other users,
- has access only to selected or all customers for whom reports are prepared (depending on the Administrator or the Owner),
- access to the database of panels and inverters also depends on the obtained permissions,
- it is not possible to add new and edit existing panels and inverters,
- cannot assign other users (regardless of their role) to clients,
- all new clients and projects are visible to the Administrator and Owner.
Most likely, users have Administrator settings or have had their permissions changed to access all clients.
The setting can be changed from the main owner account after logging in in the “Employees” tab.
There is no overall limit of users / employees that belong to a company. Please note, however, that the number of employees that can be added to your account depends on the subscription package purchased.
If the employee limit on a given account is exceeded – the new employee will receive an error message:
In order to add another user / employee, you must purchase an additional position to your package at:
The quota will then be changed and the added employees will be able to join the company.
The invitation for a new user is sent by the administrator / account owner after logging into EasySolar. The employee opens his account only after receiving the invitation. He has to use a special link to the website through which he will create a new account. Then he will be automatically added as an employee of our company.
Below is a screenshot of the message that the employee who received the invitation to the company will receive.
Number 1 – your’s company name; number 2 – button which employee should use to create new account.
After registering, the employee logging in to the account for the first time will receive an invitation to the company that must be confirmed. After this action, the user will be added as an employee of our company.
If an employee created an account earlier (before being invited), an employee must contact us by e-mail to change the company to which he is assigned in the system.
I have purchased access for my company’s employees, but they do not have access to the application (they cannot log in).
First of all, check whether the purchased subscription version allows you to add another employee (with the basic version, we can have a maximum of 2 users; if the application is used by 3 users, you need to buy access for another person)
Next, check whether the new user has been sent an invitation from the administrator / owner account.
If the employee has been sent an invitation, appropriate information will be displayed in the employees tab – “pending”.
After accepting the invitation and creating an account, this information will no longer be displayed.
The process of creating an “by invitation” account has been explained above.
If an employee claims that he did not receive the invitation e-mail, it is worth checking the SPAM folder.
07) Customer and project settings
How to enter the customer’s address if it is a new street which is not listed in Google Maps or for other reasons it is impossible to enter the street and house number?
If, despite the fact that the street is not on the Google map, and we know where the investment will be located, we can place a pin on the map or enter the appropriate geographic coordinates of the object.
If we cannot provide the street / house number, we recommend that you make the above-mentioned proposal.
The client’s address and the project’s address, although they are usually the same, when editing one of these values, it is important where we edit it.
When creating the first and subsequent project for a client, the address in the project will be copied from the Details tab.
Please note that when editing the address in Details, the one in the Projects tab will remain unchanged, and vice versa. If we want both values to be changed to the new address, we have to do it in both Details and Projects.
In the following video examples, we have shown how it looks in practice.
Video 1 – changing the customer’s address without changing the project’s address,
Video 2 – changing the project address without changing the customer address.
Such action results from the fact that two different projects with two different locations can be prepared for one client. Then, in the Details tab, the customer’s address is given, while in Projects we have the addresses of individual projects of this customer.
Yes, you can do it by opening the menu – clicking the three dots next to the client’s name. (Shown in the video below).
To perform one of the operations included in the question, open the menu in the Project header tab (three dots) and select the option you are interested in. (Shown in the video below).
Yes, to do that open the Add option by pressing the plus (+) in the Project header tab.
There is no view of previously created projects, it results from the applied filter of customer creation dates.. This filter can be modified by changing the Create Before and Create After dates.
By default, the system only shows clients created in the last month.
An example of adding a new project to the client is presented in video below.
08) Design the new system
To create a project using Google Maps, I open a new visualization and the loading wheel is constantly spinning. I cannot load an image from the maps. I cannot create a new visualization.
The problem is likely due to files stored in the browser. Deleting cookies, changing the browser or using the application in incognito mode may help. The link contains information on how to delete cookies: https://www.pcmag.com/how-to/how-to-control-and-delete-cookies-on-your-browser
Above 90 degrees, there is a blockage due to algorithms that are not adapted to counting the yield from panels turned to the north. At this point, it is not possible to position the panels this way. We are trying to fix this problem and we will try to improve it in the next update of the application.
Meanwhile, the solution could be to set the azimuth in the other direction, e.g. at -89 degrees – the yields will be minimum higher.
The roof is 100 meters long, and the program informs that the maximum length at which the visualization is possible is 50 meters.
When drawing the roof area, the entire roof must be selected, while when adjusting the perspective, you can create a grid with a maximum size of 50 x 50 meters. The program will automatically generate photovoltaic panels on the entire roof slope thanks to the fact that in the first step we marked the entire roof area (described example is shown in the video below).
The total length of the roof on the above building was 70 meters. Due to the perspective grid, the max. 50 meters, we had to adjust the perspective accordingly.
You can also create a visualization for half of the roof. The generated panels of the first part of the roof can be copied to the second part, thus creating panels on the entire surface that we have to use.
I cannot zoom in / out the photo and mark the building in Google Maps while preparing a new project.
The ability to zoom in / out of a photo from Google Maps is in the lower left corner.
This problem may also result from the web browser you are using – we suggest you try using a different one.
The proper operation of the application may also block cookies saved by the browser. The link contains information on how to delete cookies: https://www.pcmag.com/how-to/how-to-control-and-delete-cookies-on-your-browser
The global database of PV panels and inverters prepared by us is updated twice a year only with new elements. Those that have been added are not removed from it. If you want to use a panel or an inverter that is not in the database, you can add it yourself to your company warehouse.
If you are designing your installation using Google Maps and the graphics quality is poor, unfortunately we cannot help.
The quality of satellite images depends only on the company from which the images come.
The only solution in such a situation is to create a visualization using a photo of the object.
The minimum distance between rows of PV panels when placed on the ground in an open space or on a flat roof is important to avoid the shading effect.
The choice of this distance is closely related to our geographic location, as well as the dimensions of our panel, its orientation and the angle that makes our panel with the ground. Based on these parameters, we are able to calculate the minimum distance between the panels.
Let’s start with the geographic location. In this context, the height of the sun’s elevation above the sky is important – as we know, it is the lowest on the winter solstice, i.e. on December 22. Now, depending on the geographic location – the hemisphere, zone and the exact location expressed in degrees, we can calculate the height of the sun.
The next step is to calculate the height of our panel. For this we will need the angle of inclination between the panel and the ground, as well as the length of the panel. Of course, knowing the specific measured height makes it easier, but unfortunately at the design stage we rarely have such information.
We use the law of sines to calculate the height:
L/ sin90 = h/ sin(a)
h= (L / sin90) * sin(a)
Knowing the height and angle of the sun’s elevation, we can determine the minimum distance between the panels:
D= h / tan(Hs)
In the next update of our application, we will introduce a calculator that will allow and facilitate the calculation of the minimum distances between panels for any place on Earth!
Instructions for determining the perspective grid on the visualization, depending on the roof on which we prepare the project.
In this case, creating a perspective depends primarily on the shape of the roof on which the installation is designed.
In the instruction below, we present our propositions of perspectives depending on the type of roof we are working on.
1. Triangular roofs.
*) The first suggestion is to use the entire length and height of the roof.
After entering the dimensions, we line up the perspective grid lines so that they align with the line of the tiles. After setting the line, we will most often get a parallelogram (only in the photo, in fact it is a rectangle) described on a triangle if the photo is taken at an angle, or a rectangle described on a triangle if the photo is taken straight ahead. When setting the perspective, it is possible, and sometimes it is advisable, to go beyond the roof with the rectangle.
*) The second suggestion is very similar to the first with the difference that we need the half of the roof and the height.
We set the dimensions and grid lines again according to the tile line. After the operation is completed, the side edge of the roof should form the diagonal of the perspective rectangle. When setting the perspective, it is possible, and sometimes it is advisable, to go beyond the roof with the rectangle.
*) The third suggestion is to set the perspective rectangle to any rectangle on the roof, e.g. a window, a characteristic feature of the roof, a specific number of tiles.
In the photo above, we adjust the perspective to a specific number of tiles, the size of which we know, which will allow us to provide dimensions.
2. Trapezoidal roofs
*) The first suggestion will be to adjust the perspective grid to the shorter, upper dimension of the roof and its full height. This method allows the greatest accuracy and in most cases is the simplest, because at shorter distances we are able to set the perspective grid more accurately. After specifying the dimensions, set the mesh so that its lines coincide with the line of tiles or some element of the roof.
*) The second suggestion is to use the longer bottom edge of the roof and its height. After entering the dimensions, we line up the perspective grid lines so that they align with the line of the tiles. When setting the perspective, it is possible, and sometimes it is advisable, to go beyond the roof with the rectangle.
*) The third proposition, as in the case of triangular roofs, will be to set the perspective grid to a certain object on the roof, eg a specific number of tiles.
3. Roofs with complex slopes
*) The first suggestion for placing a perspective on the above slope is to define a grid based on the short upper edge and the full height of the roof. The biggest problem in this case may be a good representation of the length of the upper edge on the lower edge, but if we match the grid lines with the line of tiles, it will automatically have the appropriate length.
*) The second suggestion to place a Perspective Grid for the present roof is to use a longer length and the height of the lower roof to the neck. This allows us to slightly shorten the mesh by almost half its height and the possibility of more precise matching of the mesh line to the line of tiles. In this case, we need to extend the grid line beyond the panel distribution area. In perspective, areas of the grid may intersect, which is not possible when selecting areas for panel distribution.
*) The third suggestion is to set the Perspective Grid based on the length of the bottom edge of the roof and full height. As in the previous example, we need to go beyond the roof area and cut another perspective area.
*) The last suggestion, as in the case of other roofs, is to define a perspective grid on an area that is a characteristic part of the roof or a certain number of tiles with known dimensions.
How the azimuth change and the angle of inclination affect the total annual electricity production?
Determining the orientation of the panels relative to the sun is crucial when designing photovoltaic installations. The solar panel will produce the most energy when the sun’s rays fall perpendicular to its surface. The better the location, orientation and angle of the solar panels, the greater their efficiency and energy yields. And hence, also greater savings for the customer.
In the latitudes of Poland, the most optimal positioning of solar panels is to point them south and have an inclination of about 35 degrees. In fact, it is not always possible to set the installation in this way. Please note that our customers do not always face south-facing roofs. Can the installation therefore be installed on a roof facing a different direction?
The table below shows the percentage of solar radiation reaching the surface depending on the angle of the panels (vertical axis) and azimuth (horizontal axis).
As you can see, photovoltaic installations directed to the south-east and south-west cause slight (1-2%) losses in electricity production.
When designing installations other than southern, the best solution is to evenly distribute the installation over two slopes and to slightly oversize the size of the installation so that the actual values of the energy produced by the photovoltaics match the real needs of the farm. With such a foundation of the installation, we can also choose an inverter with a lower power, which translates into significant savings.
Ground, flat or pitched roof solar modules in the northern hemisphere will always be tilted south to maximize the amount of radiation that reaches their surface during the day. The angle at which the PV modules will be deflected depends on several factors:
- Period of the year in which the PV installation is to operate
- Installation space available
In the southern part of the country, the optimal slope of the panels is about 20-40 degrees, and in the north – 30-45 degrees. However, it is worth remembering that there is no one optimal angle of inclination – it varies depending on the season. In summer, the amount of solar radiation is much greater than in winter. When we want to use electricity only in summer (e.g. in a summer house by a lake), the installation should be inclined at an angle of 10-15 degrees. To supply buildings only in winter, the angle of inclination should be 60 degrees, as shown in the figure.
Instructions of designing PV panels on the example of a sloping roof based on a photo of the building.
Instructions of designing PV panels on the example of a sloping roof based on a photo of the building.
1. Create new project and then choose Create new design on: Sloping roof photo:
2. Select the photo on which you make the project. The application automatically begins the Draw areas process on which we would like to create PV panels.
3. Define the area by clicking on the vertices of the surface you are interested in.
After designating the surface on which the panels are to be located, we can proceed to the next step – Adjust perspective.
4. Adjust perspective.
When you switch to Adjust perspective, the blue perspective grid appears. It should be arranged in such a way as to reproduce the arrangement of the roof in the photo, and also to provide known dimensions, e.g. the height of the roof and its length. It may also be a skylight or a known number of tiles of known size. The grid lines reflect the orientation of the panels on the roof.
To be sure that the panels will be generated evenly, you can arrange the grid lines to coincide with the line of the tiles.
At this point, we also recommend that you read the instructions on Adjusting the visualization perspective in the photo of a pitched roof available here.
5. Generate panels and Area settings.
In this step, on the right side, first of all, select the model of panels to be placed on the roof (1), set the Tilt of modules (2), the azimuth of modules(3) and change the orientation of the panels (4). If you make a mistake, you can go back to the previous steps to change your perspective, for example.
If you need high accuracy, the drawing can be zoomed in or out using the “+” and “-” buttons or by using the mouse scroll.
The dependence of the angle of inclination of the panels and azimuth setting the total power production has been described here.
When selecting the model of panels, you can use the extensive database of manufacturers in the public warehouse (1), and also add your own panel (3) by specifying its basic parameters. All added items are in the company warehouse (2).
It should be remembered that only a user with administrator permission can add panels to the Company warehouse and that person can set access permissions for employees, i.e. they can only have access to the Company warehouse or to all panels of the public warehouse.
After choosing Generate panels, the application automatically takes us to the Editing layout.
6. Edit layout.
The Edit layout option allows us to undo or restore (1) the movements made, move the photo (2) on which we make the project, select multiple panels (3), duplicate selected panels (4), delete selected panels (5). The application also shows us how many panels we have used and what power we are able to generate from them (6).
Select multiple panels (3), we can select some cells and then duplicate (4) or delete (5) elements. Having selected panels, we can freely place them on the roof of the designed building. To deselect a given panel (s), having the option selected, select multiple panels (3), you need to deselect each panel one by one; while having selected panels without selecting multiple options (3) just press anywhere in the photo.
It should be remembered that after each editing of the position of the panels and / or changing the parameters, the panels must be regenerated by Generate panels.
7. Save the project.
When saving, remember to crop the photo properly. The application saves the project as it was left when it was created. For a better visual effect, it is best to properly zoom in and center the image
This was the last step of the design instructions in the photo of the pitched roof. The next stage of the project is its valuation, which is discussed in a separate instruction here. If you still have problems with creating your projects, please contact us using the Chatbot (bottom right corner), watch one of our guides here or arrange a free online training: link.
The photo used for the project is a project of an external company: https://www.archon.pl/projekty-domow/projekt-dom-w-jablonkach-4-p-m3512263ccce00
Can I create a project using more than one photo of the roof slope? Will the program count the number and power of panels?
Using the EasySolar application, you can add e.g. three visualizations for three different directions of the house roof.
If, for example, three visualizations are added, the program automatically counts the power and number of panels that have been prepared.
I added panels to the previously prepared mesh in the visualization, but I cannot save the project.
Information displayed by the application when we want to save the project.
Most likely, the project has another surface drawn on which no panel has been generated. You should go back to the Draw areas step and delete the unnecessary surface.
Returning to the Draw areas tab, we can see that we have created a surface that is too narrow for PV panels to be generated on it. The program does not allow you to save a visualization with no generated panels on any surface.
We need to delete this surface and then we can save the visualization.
When creating a visualization on a sloping roof or using Google maps, the user can use the public warehouse database or add a panel by himself in the Add panel option – the function is available only to users with administrator permission! We will be able to use the photovoltaic panels that we have added in the future, because they will be stored in the company warehouse.
To add a panel to the application, we need the basic rating parameters of the cell so that the program can properly use it in the application.
Yes, but only when designing by selecting the Photo of a Sloping roof option (having a photo of the roof).
Just open the menu by clicking on the three dots and select Delete.
To do this, open the created project and then select the Design the System tab. Next, we choose whether we create a visualization using sloping roof photo perspective of the object, aerial view using Google Maps or prototype.
The program allows you to create installation projects up to a maximum of about 5 MWp. In this range, the performance of the application can drop significantly, making it difficult for you to continue your work. The program may also stop working properly.
In the case of such large installations, we recommend dividing the visualization into two parts. How to do this is shown here.
The problem is with the coordination of the photo stored on the phone. It is read differently on the phone and differently by the browser.
Please try to crop them a little in some simple photo editing tool like Paint. Trimming will result in deleting the coordinates stored on the phone and saving new ones, correctly read by the browser.
- Model of panels – click and select from the Global Warehouse or Company Warehouse, the “Add panel” option allows the Administrator to add panels to the Company Warehouse.
- Select the “Area” option.
- Enter the roof area in square meters (1 feet – 0.3048 meters).
- Set “Percentage of used area” – that is, how many% of the entered roof area will be covered with panels
- The power of the installation and the number of panels will be automatically calculated below.
- Then set the angle – this is the angle of the roof and it affects the energy yield.
- Azimuth – deviation of the solar panels / building from the south
- Model of panels – click and select from the Global Warehouse or Company Warehouse, the “Add panel” option allows the Administrator to add panels to the Company Warehouse.
- Select the “Power” option.
- Enter the power of the installation you want to install.
- Below, the roof area and the number of panels will be automatically calculated.
- Then set the angle – this is the angle of the roof and it affects the energy yield.
- Azimuth – deviation of the solar panels / building from the south
- Complete this form for each roof slope and save it separately.
- If you do not have access to Global Warehouse, ask your company’s administrator to change permissions.
When determining the valuation items to be included in the report, it is possible to add inverters. You can choose from “Global/Company warehouse” or “Add an inventer”. The inverter that has been added by us will be able to be used again later, it will be located in the Company warehouse tab. Then specify the number of pieces and the net price of the inverter and it will be added to the valuation.
If the Evaluate button is inactive, go back to the previous steps in the project.
1. Setting the currency, discount and Tax:
2. Determining the price of the panels:
The selected panels and their amount are automatically taken from the visualization and placed in the project.
At this stage, we enter the unit net price of the panels provided by the manufacturer or individual (1), specify the Tax (2) and Discount (3). There is also space here to enter additional guidelines or information in the Details area (4).
3. Adding and specifying the price of inverters (optional):
The inverter we can do by pressing “+” or “Add Inverter”.
In the inverter selection window, we have the option, as in the case of photovoltaic panels, to add an inverter from our Global warehouse (1), or also Add inverter by specifying its basic parameters (3), after the operation it will be in the company’s warehouse (2).
Now, just like in the case of panels, enter the unit price and complete the Tax and, if necessary, details.
4. Adding other services performed at the customer’s site (Optional):
At this step, you will need to enter the name of the service or equipment (1), the number of pieces (2) and the unit (3). In the event of a mistake, you can edit each box at any time or delete the item completely if necessary (5). Adding another record is done with “+” (4).
* ) Setting the amount for the entire offer
When performing the valuation, it is possible to skip steps 2-4 and set the amount for the entire offer for each 1 kWp of installed power.
Just select “Set for the whole offer” (1) and enter the price per kWp (2) and Tax (3) and if you select a discount, enter Discount (4). Also in this method of valuation, it is possible to add a comment (5).
5. Summary and saving of the valuation:
The last step is the project summary (1) which is extremely helpful in determining the unit prices of all items sold. Finally, save the valuaton and return to the project (2) dashboard for financial analysis.
To do this, open the created project and then select the Valuation tab.
Then we choose whether the offer is to include VAT or take into account the discount and select the currency in which the valuation is to be made.
Next, we define the values of the Items on the Valuation: Panels, Inverter and Other.
The different steps are explained here: https://easysolar.app/ufaqs/the-step-by-step-project-valuation-instruction/
11) Financial analysis
Where can I change the ratio of the investor’s energy consumption during the day and night profile?
You can change the profile in the “Financial analysis” tab, and then use the slider to adjust the appropriate “Day and night electricity consumption profile“.
If energy is consumed only during the day, the slider should be set maximally to the right, and if only at night, the slider should be set maximally to the left. We set the same analogy if the energy consumption profile has a different day to night ratio. In case of problems, a hint is always displayed at the top, which data currently needs to be completed to perform the analysis.
Step-by-step instruction for performing the financial analysis.
1. Fill in the electricity bill and electricity price fields
In the first step, is required to complete the Monthly total electricity bill (1), which is the actual amount payable by the customer divided by two (if the customer has a bill for 2 months). Another thing to consider is the annual percentage change in energy proces (2) and the current Price of electricity (3). The last parameter that determines energy consumption is the daytime and night time consumption profile (4). It tells us whether the energy is consumed only during the day (the slider is moved to the far right) or only at night (the slider is moved to the left). In case of problems, a hint is always displayed at the top, which data currently needs to be completed to perform the analysis.
The Annual change in energy prices (2) is the percentage that we determine in order to determine a more detailed analysis of the money that the customer will be able to save after installing the PV system. The change in electricity prices is the projected percentage increase in electricity prices for households.
The Price of electricity (3) is the gross price with the transmission of this energy. Usually, it is difficult for the customer to determine the exact data of the charges broken down into transmission and electricity costs, so we use the combined price in the calculation to simplify the data that the customer is to provide to prepare the calculation.
2. Analysis model
In the next step, we choose the financial analysis model. To use our model database, just search for it by the name of the country or a specific phrase in the search engine (1). All records meeting the requirements will be displayed below (3). Information about a specific model – discounts, returns, settlements, can be found on the right (4). If you do not find the model you need or want to add your own, just use the “+” button (2) and complete the form. Instructions for creating your own analysis model are shown below.
After this step, we will get a preliminary analysis with graphs.
2.1. Instructions for creating your own financial analysis model.
- Name – name of the analysis model to be created, by which it will be possible to search for the given model in the list. The name will be displayed in the database of analysis models,
- Tax credits– discounts received by the client for the installation of PV panels (e.g. thermomodernization). We give this discount in % and it is added as a % of the investment costs in the economic analysis, which is then displayed as the received payments,
- Rebates -one-off discounts or subsidies provided to the client at the beginning of the investment. The cash grant is deducted as a surcharge in the first year,
- Rebater per kilowatt – customer discount for the purchase of energy for the photovoltaic installation. This is the same as the Rabates but in terms of kWp,
- Net metering available to fed ratio – expressed in %, the difference occurring as a result of surplus energy production. It informs how much energy we can receive from the grid in the discount model. If we give 1 kWh of surplus energy to the grid during the year, we will be able to get 0.8 kWh from the grid for free, so the ratio will be 80% (for installations with a power below 10kWp and instalated in Poland),
- Net metering surplus price – value determined by the network operator with whom the customer signs an agreement on the rate of surplus energy produced,
- Green certificate price – we introduce if the client has the so-called Green Certificate, these will be additional income due to subsidies for the generated electricity,
- Green energy produced price– a value that determines how much the customer will receive for each kWh produced by his PV installation (it does not necessarily mean selling energy to the grid),
- Green energy fed into the grid price – value received for each kWh fed into the grid,
- Solar panels degradation factor – average annual decrease in the power of the panels that will be installed to the customer.
3. Określenie kredytowania / leasingu
The final step is to define the loan. To start this operation, you need to change the percentage of Own contribution by moving the slider to the appropriate place (1). The own contribution that the customer must have, as well as the total cost of the installation in the form of initial costs, can be seen on the right (4). If you have decided on a loan or leasing, you need to determine its duration in years (2) and its Rate of interest (3). After setting these parameters, on the right side (4) we will see the monthly loan installment and the total amount that we will pay the lender. All changes in the analysis parameters are visible in the diagram of Production and consumption of energy (5) and in the Cumulative cash flow (6).
To do this, open the created project and then select the Calculate tab.
Next, we move on to the various stages of conducting the financial analysis of the project being created. In the appropriate fields, enter such information as: Consumer’s electricity bill and price, information on possible crediting of the investment and the amount of the investor’s own contribution. You should also choose the financial analysis model adopted in the project.
The next steps are explained in the question below.
12) Send proposal
The PDF offer can be completely edited and individual pages of the offer can be deleted. In the “Sections” tab, you can change the order of individual elements of the offer or completely disable sections. After disabling one of the sections, it will not be displayed in the generated PDF file.
To download the created documentation, select the Download option in the program that we use to open the offer. The file will be downloaded in PDF format.
An example of downloading from Google Chrome is shown below.
The following sections provide a detailed overview of the elements included in the report.
1. Adapting the PV system (Page 2):
A) Your current electricity bill:
In this section, the customer can see how much he currently spends on electricity in a year (1) and monthly (2), as well as see electricity price forecasts and estimates in 20 years, as well as current CO2 emissions per year.
B) Recommended size of PV System:
Here, the client receives initial information about the designed system – its power (1) and the roof area occupied (2). It also obtains information about its annual electricity production and the estimated annual production of the installed system (3). We can also see if the system is oversized, perfectly matched, or if its power is insufficient to fully cover consumption.
C) Energy balance:
In this part, we get information about the estimated system power (1) (how much energy we are able to get from primary energy sources), the amount of electricity fed into the grid (2), it is related to the oversized system or when the user uses the main electricity at night and the amount of energy taken from the grid (3) (the user will have to pay extra for this energy), it is related to the system that does not fully cover the energy demand.
2. Visualization (strona 3):
In this part of the report, you will find information about the number of photovoltaic panels used and the electricity they generate, as well as all visualizations and concepts created by you.
3. Estimate of a project (strona 4):
At this point, the customer receives a valuation. If you select an amount for 1 kWp of installed power during the valuation, the amounts of individual parts of the installation will not appear in the report, but only their number (as above). To view a specific amount for a product, each part of the system must be accounted for separately.
4. Accumulated cash flow (strona 5 i 6):
In this section of the report, we obtain information on the cash flow in the subsequent years of operation of the installation. The first item is production (1), which decreases each year by the panel degradation factor. The next column is savings (2), which is the difference between your electricity bill without PV (6) and your electricity bill with a PV system installed (7). The next item is received subsidies (3), they are related to the thermo-modernization relief and it is the amount that the customer will receive in the form of income tax refund on installation costs. In the Installment column (4), we see the annual loan installment, if the client decided to take out a loan. The next item is accumulated cash flow (5), they show how much the client has gained / lost since the beginning of the system operation.
The next part of the accumulated cash flow is the chart that shows us the cash flow for each year and is compatible with the table.
To get documentation, to send it to the client / see the final effect, open the created project and then select the Send proposal tab.
After this action, our browser will open the documentation and we can view it.
The individual points of the documentation were explained in the next step!
We conduct training for new and existing users of our application. There are two ways to familiarize yourself with the operation and functioning of the application as well as the design and sale of PV installations with EasySolar:
- Video tutorial in the form of a recording of one of the training sessions. This form is perfect when you want to recall certain elements of the functioning and operation of the application. One of such recordings is available here.
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Can the application be used in construction or engineering projects, e.g. designing electrical connections?
The EasySolar application is not a typical Autocad design program that allows you to perform a construction project.
The application is mainly used to perform initial concepts, visualizations and economic calculations needed at the sales stage and is intended mainly for home installations and small and medium-sized industrial installations, including farms – up to about 500 kWp.
Does the EasySolar app overestimate simulated electricity production by a PV plant? What is the error of the offered analysis?
The application does not overstate the simulation of energy production. The adopted calculations are theoretical based on the assumed losses in the photovoltaic system (cables, dirt, DC / AC conversion), the application is at the level of 10%. The algorithm used in the application is book-based, and the meteorological data is taken from the NASA global database.