Midsummer BOLD & BOLD-S

Solar panels for flat roofs

The Midsummer BOLD series features ultra-lightweight and flexible solar panels designed specifically for use on bitumen and plastic membrane substrates, resulting in a discreet solar roof solution. Developed for larger roof areas on commercial properties, industrial buildings, warehouses, and sports arenas, the Midsummer BOLD is also suitable for multi-unit residential buildings and private homes.

Midsummer BOLD

Discover the power of sustainable energy with Midsummer BOLD, the extremely robust solar panel made in Europe. Featuring a groundbreaking low carbon footprint of only 6 grams of CO2 per kWh throughout its lifecycle, Midsummer BOLD is the perfect choice.

  • Capacity: 240W
  • Efficiency: 120W/m²
  • Weight: 3 kg/m²
  • Warranty: 25 years
  • Carbon Emissions: 6 grams per kWh

Midsummer BOLD-S

Midsummer BOLD-S, a robust solar panel manufactured in collaboration with our Asian partner. With a CO2 impact of only 12 grams of CO2 per kWh throughout its lifecycle, BOLD-S offers an impressive environmental profile.

  • Capacity: 500-510W
  • Efficiency: 150-153W/m²
  • Weight: 2 kg/m²
  • Warranty: 25 years
  • Carbon Emissions: 12 grams per kWh

Advantages of Midsummer BOLD Modules

Low Environmental Impact

These modules have the lowest CO2 impacts in the industry throughout their lifecycle, aligning with environmental sustainability goals.

Efficient Installation

The design of the BOLD modules allows for quick and secure installation without the need to penetrate the roof’s waterproof membrane, resulting in installation times up to 50% faster than traditional methods.

Lightweight Construction

The lightweight nature of these modules reduces strain on roof structures, making them ideal for a variety of buildings, including commercial and residential roofs.


Designed to endure harsh environmental conditions, the BOLD modules are robust and durable, suitable for areas where roofs frequently need to be accessed.

Protective Features

Acting as an extra layer of protection for the roof, the modules help block UV radiation from damaging the roof’s surface, thereby extending its lifespan.


With a flexible design, the BOLD modules can be adapted to multiple roof types, particularly flat roofs, maximizing space utilization and enhancing installation efficiency.


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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