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Solar facades: The beautiful source of solar energy in a sustainable city

For the extension of the iconic <a target="_blank" href="https://www.laudinella.ch/en/">Hotel Laudinella</a> in St. Moritz, Switzerland, <a target="_blank" href="https://www.stricker-architekten.de/">Stricker Architekten</a> has taken an important step in the design process: the creation of a full-scale facade mock-up. Built by <a target="_blank" href="https://www.uffer.swiss/">Uffer Holzbau</a>, the mock-up enabled the design team to assess two different colour variations of Solarix solar facade panels in real life.A facade mock-up is a valuable part of the architectural design process. It allows materials, colours and detailing to be experienced at full scale – an essential step towards making informed aesthetic decisions. In this case, it helped ensure the solar panels would harmonise with the other facade elements.The solar facade is being developed in collaboration with <a target="_blank" href="https://reech.ch/de">Reech</a> and consists of custom-made Solarix panels. Production is now well underway and installation is scheduled for this summer.This solar facade marks another step forward in combining sustainable and aesthetic architecture in the Swiss Alps. • 21 May 2025

Solarix co-founder and Creative Director Reinier Bosch recently joined the <a target="_blank" href="https://groenezaken.co/">Groene Zaken</a> podcast with hosts Danny Oosterveer and Aljo Hartgers. In this episode, Reinier shares his vision on the future of energy-generating facades and the story behind Solarix.As true ambassadors of aesthetic and sustainable solutions, Reinier and fellow co-founder Marloes van Heteren enjoy telling the story behind their mission: to make buildings not only more beautiful, but also more functional. In this episode, Reinier dives deeper into the “why” behind Solarix — and how a solar facade can add value to buildings in multiple ways.💡 Did you know that facades can generate electricity even when the sun is low — like in the early morning or late afternoon — often at times when energy prices are more favourable?Curious to hear more? Listen or read via:🎧 <a rel="noopener" target="_new" href="https://open.spotify.com/episode/2XA4lMyziLRRWuexQoL4cc?si=53f701fda0ea4e24">Spotify</a> 🍎 <a rel="noopener" target="_new" href="https://podcasts.apple.com/nl/podcast/gekleurde-zonnepanelen-stroom-opwekken-met-je-muur/id1510818398?i=1000708063379">Apple Podcasts</a> 💻 <a rel="noopener" target="_new" href="https://www.youtube.com/watch?v=mmK7TdWZge8">YouTube</a> 📘 <a rel="noopener" target="_new" href="https://groenezaken.co/artikel/gekleurde-zonnepanelen-stroom-opwekken-met-je-gevel/">Article on Groene Zaken</a> 📘 <a rel="noopener" target="_new" href="https://groenezaken.co/artikel/podcast/stroom-opwekken-met-gevels-met-zonnepanelen-van-solarix/">Episode on Groene Zaken website</a> • 13-05-2025

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Reinier Bosch joins the ‘Groene Zaken’ podcast

The energy transition is one of the greatest challenges of our time. Replacing fossil fuels with renewable energy sources is crucial to combat climate change. But why do we need to accelerate this transition, what tools are available to achieve this, and how can solar facades specifically contribute to this acceleration? In this blog, we discuss the urgency of the energy transition, the tools to speed it up, and the role of innovative solutions like facade-integrated solar panels.

The need to accelerate the energy transition is clear. Global temperatures are rising at an alarming rate, leading to more extreme weather events, rising sea levels, and biodiversity loss. This has not only ecological but also economic and social consequences. To limit global warming to 1.5°C, as agreed in the Paris Climate Accord, we must drastically reduce CO2 emissions—and quickly. The Netherlands has set ambitious goals for the energy transition. According to the Dutch government, the country aims to fully switch to renewable energy by 2050. This entails a large-scale transition to solar and wind energy alongside the development of sustainable energy infrastructures, such as pipelines and energy storage systems. For more information about these goals,<a href="https://www.rijksoverheid.nl/onderwerpen/duurzame-energie/duurzame-energie-infrastructuur#:~:text=Nederland%20wil%20in%202050%20alleen,buisleidingen%20en%20installaties%20voor%20opslag."> click here.</a> Furthermore, current geopolitical developments and the desire for faster independence from gas underscore the urgency of an accelerated energy transition. This requires action on many fronts, both large-scale and local. Communities and businesses play a vital role, as their involvement in sustainable initiatives creates broad support for the energy transition (<a href="https://www.tno.nl/nl/newsroom/2022/03/energietransitie-sneller/">TNO, 2022</a>).

Why must we accelerate the energy transition?

Fortunately, various tools and strategies are already available to speed up the energy transition:<ul><li>Energy efficiency: Improving building insulation and adopting more efficient technologies can reduce energy consumption.</li><li>Renewable energy generation: Scaling up the use of solar panels, wind turbines, and other renewable sources is essential.</li><li>Electrification: Transitioning from fossil fuels to electricity in sectors such as transport and industry can significantly cut CO2 emissions.</li><li>Smart grids: Digitisation and intelligent energy networks enable efficient energy distribution and storage.</li><li>Awareness and acceptance: Increasing public, corporate, and governmental support is essential for widespread adoption of sustainable solutions.</li></ul>However, a recent report from the Netherlands Environmental Assessment Agency (PBL) emphasises that additional policies with rapid effects are necessary to stay on track for the 2030 climate goals (<a href="https://www.wkr.nl/actueel/nieuws/2024/10/24/wkr-minicollege-klimaatdoelen">PBL, 2024</a>).

Tools to accelerate the energy transition

In the quest to generate more energy, facades are often underutilised. However, they offer tremendous potential, especially in urban areas where space is limited. Installing solar panels on facades increases the energy density of buildings without using additional land. Integrating solar panels into buildings enables faster independence from fossil fuels for direct energy use in buildings. This makes it possible to create energy-neutral or even energy-positive buildings. A key advantage of solar facades is their potential to be architecturally integrated into building designs. At Solarix, we combine aesthetics with functionality. Our solar panels are available in various colours, patterns, and finishes, seamlessly matching the architecture of modern buildings. This not only increases acceptance but also makes sustainable energy generation more appealing to developers and architects.

Solar facades: An aesthetic and functional solution

In large and tall buildings, it is often not feasible to generate sufficient energy with rooftop solar panels alone. Facade solar panels provide an additional source of renewable energy, enabling buildings to become nearly or entirely energy-neutral. This is particularly crucial in densely populated cities where pressure on the electricity grid is high, and grid congestion is an increasing concern. By combining various energy-generating systems – such as rooftop, facade, and even glass-integrated solar panels – we can maximise a building’s energy potential. This not only contributes to the energy transition but also reduces energy costs for property owners.

The Importance of Multiple Energy-Generating Products

The use of solar panels on facades has a positive impact on the energy performance of a building and thus contributes to meeting the BENG requirements (Nearly Energy Neutral Buildings). As of 1 January 2021, the EPC calculation (Energy Performance Coefficient) and the NEN 7120 standard for calculating the energy performance of buildings will be discontinued. These have been replaced by the BENG calculation, which is used as a new standard for energy performance. This was introduced to focus more on sustainability and the use of renewable energy. The BENG requirements focus on three pillars:<ol><li>The maximum energy requirement of a building (expressed in kWh per m²);</li><li>The primary fossil energy use (kWh per m²);</li><li>The share of renewable energy (%).</li></ol>The transition to the BENG calculation entails a more comprehensive and future-oriented approach. This not only looks at the energy requirement of a building, but also at the origin and sustainability of the energy used. The EPD (Environmental Product Declaration) provides insight into the environmental impact of building products. Solarix products have a particularly low EPD score compared to other solar products on the market. The particularly low EPD score of a Solarix solar panel, which indicates a low environmental impact per unit of product, contributes to achieving a favourable MPG score (Environmental Performance of Buildings). The MPG score measures the environmental impact of a building throughout its entire life cycle. This can contribute to achieving sustainability labels such as BREEAM or LEED, which are internationally recognised as standards for sustainable buildings. Thanks to these properties, Solarix products are not only favourable for BENG calculations by architects and developers, but also attractive for realising more sustainable buildings. They contribute to a lower environmental impact and increase the chance of a higher rating in sustainability labels. Additional Benefits of Facade Solar Panels:<ul><li>Locally generate renewable energy exactly when and where it is needed.</li><li>Improve grid energy balance by generating power from different orientations, resulting in more even energy production throughout the day.</li><li>Cost savings through energy generation during peak pricing periods.</li><li>Reduce CO2 emissions by an average of 3,000 kg/m² over the lifespan of Solarix panels.</li><li>Energy savings due to reduced transport losses, with a fully renewable supply chain that can lead to up to 40% energy savings.</li><li>Efficient land use by preserving agricultural land otherwise used for solar farms.</li><li>Replace construction materials, reducing the need for additional resources.</li><li>Create space for green solutions, such as rooftop gardens, by reducing the reliance on solar rooftops.</li><li>Contribute to meeting BENG and Label C standards for nearly all building types.</li></ul>

Solar panels on the facade have a positive influence on the BENG calculations (formerly EPC calculations), the MPG score and the achievement of sustainability labels such as BREEAM and LEED.

Solarix is committed to accelerating the energy transition to reverse current trends. With Solarix, we aim to make a significant impact on the global energy transition by drastically reducing the CO2 footprint of the construction industry, taking steps towards circular building practices. Over 36% of all CO2 emissions originate from the built environment, and our solar panels can substantially mitigate this. One square metre of solar facade equates to a 3,000 kg CO2 reduction over its lifespan, equivalent to the carbon absorption of three growing trees. It is clear that facade solar panels can play a vital role in the energy transition. By combining sustainable energy generation with innovative design, we prepare cities for the future. At Solarix, we are dedicated to a world where every building generates energy – aesthetically, efficiently, and sustainably. What is your vision of the role of buildings in the energy transition?

Accelerating the Energy Transition Together

This blog was created with input from Eefiene Winnubst-Bolhuis. As Lead designer and Marketing manager at Solarix, she brings over 15 years of experience in product and material design. She develops color collections and leads the creative direction of Solarix's brand identity and communication.

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Solarix wins the Future of Energy Award 2024

What a special moment! On November 21st, we proudly received the Future of Energy Award in the Commercial Project of the Year category for our vibrant green solar facade, designed for the redevelopment of Brede Basisschool De Kikker. This fresh, energy-generating building is the result of a great collaboration between Dok Architecten, the Municipality of Amsterdam, Kernbouw, Koninklijke Kuipers and our team at Solarix. Together, we brought a shared vision to life. The Future of Energy Award recognizes innovative renewable energy projects that really make an impact—and we are incredibly proud to contribute to accelerating the energy transition with our custom-made colored solar panels. Congratulations to the other winners and nominees: Solarge, solarbastards, zoncoalitie, Eneco, Ecorus Home, SolarNRG, MWS, Powernaut and Scoptvision. Let’s keep working together on the future of the energy transition!

Facade mock-up for Hotel Laudinella completed – solar facade production now in full swing