Midsummer BOLD

Solar panels for flat roofs

Midsummer BOLD is an ultralight and flexible solar panel which, among other things, is intended for bitumen and plastic membrane as a base, where the end product becomes a discreet solar roof. Midsummer BOLD is developed for larger roof areas on commercial properties, industrial buildings, warehouses and sports arenas, but also apartment buildings and private homes.

Midsummer BOLD

  • The low weight of the solar panels means that no reinforcement of the roof is needed, i.e. no cost to reinforce the roof structure. 
  • No penetration of the roof waterproofing is done
  • Midsummer BOLD are so durable that you can walk on them
  • The product acts as an extra protection on the roof’s waterproof layer and stops UV light from causing damage to the waterproof layer, which increases the life of the roof.
  • Midsummer BOLD is sold with a complete roof replacement or retrofitting on an existing roof. 
  • Midsummer BOLD is manufactured in Europe and is the market’s most environmentally friendly solar cell product for large flat roofs with an extremely low carbon footprint.
  • Midsummer also offers the model BOLD S, a thin film solar panel with similar properties to BOLD. BOLD S is certified by Midsummer for the European market, manufactured by an Asian partner and can be offered at an even more attractive price.

Benefits of Midsummer BOLD


Midsummer BOLD is a Swedish solar cell innovation that is manufactured in our production facility in Järfälla outside Stockholm.


Due to low material consumption, a unique manufacturing process and production in Sweden, Midsummer’s solar roofs have a 90% lower carbon footprint compared to traditional solar panels.

Minimal weight

Minimal weight enables easy and safe installation without penetrating the waterproofing layer of the roof. High power of 39 W / kg, which is less than 30% of the weight for the same power for traditional solar panels.

For more information

Download product sheet.

Additional components for Midsummer systems

Midsummer offers a number of batteries for energy storage as well as electric vehicle chargers. Contact us and we will help you find the best solution for you.

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Sture Wikman, CEO of Precima AB, chose Midsummer

“We have an ambition to be a climate-smart supplier. We work actively with our environmental impact and an important part of that is the installation of the solar cell roof from Midsummer. With its low weight, the Midsummer BOLD product has been a perfect choice for our factory. ”

Installation of solar panels

Midsummer BOLD is suitable for a range of different roofing materials, e.g. roofing felt, membrane and sandwich panels. The solar panels can be mounted to both flat and sloping roofs.

Midsummer BOLD is fitted using discreet sheet metal strips, which are screwed into tiles and then welded to the roofing material, e.g. roofing felt, membrane or sandwich panels.

Yes, Midsummer BOLD can be retrofitted to existing roofs or fitted as a complete replacement roof.

Midsummer BOLD has an output of 120 W / m².

Midsummer BOLD is available in black.

A Midsummer BOLD panel is 1,685 mm long and 1,000 mm wide.

Midsummer BOLD weighs 3 kg / m². 

Midsummer BOLD

Solar cell roofs for bitumen- and plastic membranes

Villa med 120 m2 total takyta (sadeltak) varav ~ 50 m2 av taket täcks med solpaneler


Installation av Midsummer BOLD på platta eller lutande tak 5,25kW
Från: 212 000  kr

Komplett takbyte inkl. Midsummer BOLD Solcellspaket 5,25 kW
Från: 269.000 kr

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Get in touch

+46 (0) 8-525 096 10
Opening hours:
Monday-Friday 08.00-17.00

Elektronikhöjden 6
175 43 Järfälla

Organisationsnummer: 556665–7838

VAT nr: SE556665783801

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