We manufacture and install thin-film solar cells made by CIGS (Copper, Indium, Gallium and Selenium). Thanks to this unique technology, the solar panels become thin, light and discreet. The biggest differences compared to ordinary solar panels are:
The solar cells are manufactured in our production facility in Järfälla with our own DUO-system which is the most widespread production system for flexible CIGS solar cells in the world. The solar cells are then assembled into complete solar panels that we install on different roofing materials.
We offer three products that are adapted for roof tiles, sheet metal and bitumen.
Midsummer WAVE is a solar panel that is laid on top of two-cup roof tiles (Palema from Benders, Jönåker from Monier, Mjöbäck and Ekeby from S:t Eriks), either as retrofitting or in a complete roof replacement.
Midsummer SLIM is a combination of thin solar panels and a folded sheet metal roof. The product is sold as a complete roof renovation and the length can be customized.
Midsummer BOLD is a solar panel that fits on flat roofs, for example bitumen and plastic membranes as a base. The product is sold as a complete roof renovation or as a retrofit.
No, our thin film solar cells consist of CIGS (Copper, Indium, Gallium and Selenium).
No, our solar cells are cadmium free.
No, our solar panels are on top of the roof’s waterproofing layer. In other words, they are integrated with the design, but not integrated technically, which means that they can be applied to existing building materials.
Midsummer WAVE has an efficiency of 110 W / m², Midsummer SLIM 111 W / m² and Midsummer BOLD 116 W / m².
Our solar roofs are certified according to IEC 61215 and IEC 61730 by TÜV.
Our solar panels are certified by TÜV. They have been tested in climate chambers, thermal cycling, thermal cycling, snow pressure, hail, etc. according to current standards. Our solar panels pass all tests above standard and, above all, snow pressure, our panels pass far more than TÜV is able to expose them to. In addition, we have a number of installations on roofs in climates with snow and ice, most in Sweden, among others, in Nordingrå.
In collaboration with Resurs Bank, we offer the opportunity to finance your solar roof through either an advantageous private loan or a mortgage with a green discount. Read more here (information in swedish).
Private individuals who choose to buy solar roofs can use a green deduction of 15% up to SEK 50,000 per year, and 50% on material and labor costs for installation of batteries or charging boxes. If there are more people in the household, the sum can double.
You can also use the ROT deduction of 30% for labor costs when renovating your roof. Unlike the ROT deduction, the green deduction can be applied to new properties, including those built during the past 5 years. This only applies to private individuals and properties that are connected to the electricity grid. Companies and tenant-owner associations cannot use the deductions.
We offer a product warranty of 10 years. Our solar roofs also have a efficiency warranty of 90% after 10 years and 80% after 25 years. here.
The solar panels are available in black. Sheet metal and roof tiles are available in other colors..
Yes, you can walk on our solar roofs with care. Clean shoes and safety equipment are a prerequisite.
Yes, we install in large parts of Sweden. Contact us here if you are intrested.
In most cases, no planning permission is required, provided that the roof’s materials and colour remain the same. If you want to change the materials or colour of the roof, planning permission may be required. Furthermore, some municipalities require planning permission for solar panels. Whether or when you require planning permission thus varies from municipality to municipality. Furthermore, this can also vary depending on whether the house is located in an area with a zoning plan. Contact us and we will help to investigate whether you need to apply for planning permission for your house.
Shadow is a factor that can naturally affect electricity production. To handle this, we have designed our solar panels with a bypass diode between each solar cell, which makes the system more tolerant, unlike many other module types that have fewer diodes. If for some reason a cell is shaded, the bypass diode is activated and forwards the current to the next cell. Without bypass diodes, the current would have been drawn down into the shaded cell. Since the cells are connected in series, the current in the entire module would also be reduced to a lower level.
To find out how much electricity your solar panels produce in total, you can easily read your inverter or in the inverter’s included mobile app.
The electricity you do not use is automatically fed back into the grid. This is known as surplus electricity and you can sell it to an electricity company.
It is important that you sign an agreement regarding the sale of your solar cell. The agreements that the electricity trading company offers vary, but you are usually reimbursed with the market price for the electricity sold. The market price is determined on the Nordic electricity exchange Nord Pool and is called the spot price. Some electricity trading companies offer spot prices with a small deduction to cover administrative costs for the service, while others offer a temporarily higher price against the requirement that you also buy your electricity from them.
Uppgradera ditt tak med Midsummer SLIM eller Midsummer WAVE i samband med att du byter ditt tak så bjuder vi på takmaterialet!