K 2010. Generating solar energy efficiently with PLEXIGLAS® Solar
High-tech solar lenses made of PMMA enable higher energy yield for concentrating photovoltaics (CPV)
With its low weight and high impact resistance, PLEXIGLAS® Solar also helped to build the world’s largest lightweight solar module
The generation of solar energy must become cheaper if solar energy is to pay off financially. This can be achieved by lower manufacturing costs or greater energy yield of the solar modules. With PLEXIGLAS® Solar, Evonik Industries is improving module efficiency.
The product range of the Acrylic Polymers Business Line comprises molding compounds, sheets, tubes and Fresnel lenses for photovoltaics and concentrating photovoltaics. The transmission properties of PLEXIGLAS® Solar are specially adjusted to the spectral response and requirements of solar cells. The material does not yellow or become fragile after long-term exposure to UV light. It was also used a highly transparent cover material for the world’s largest lightweight solar module, owing to its light weight and good impact strength.
In concentrating photovoltaics, special lenses focus light and concentrate it on a relatively small surface area. PLEXIGLAS® Solar protects the photovoltaic cell and offers optimized energy conversion efficiency by only letting those photons that the cell can actually convert through to the cell.
In addition, PLEXIGLAS® is much more weather-resistant than other plastics. Its transmission remains constant for many years, so that the solar energy can reach the solar cells on a permanent basis.
The material also offers extremely accurate mold surface reproduction for the special microstructure of Fresnel lenses.
Low weight, special transmission characteristics and high resistance to weathering and UV light are the main reasons why PLEXIGLAS® Solar was chosen as the cover sheet for the world’s largest lightweight solar module. It measures 1.58 by 4 meters at a weight of only 80 kg, making it a real lightweight.
Working together with its customers and partners, Evonik develops products and system solutions for and with plastics. We thus have a range of services that satisfies market and application requirements.
Evonik is present in all major growth markets around the globe. Its customized products and solutions include raw materials, sophisticated additives and paints, engineering plastics, high-performance polymers, and semi-finished products. They are virtually exactly what is needed for tomorrow’s efficient, sustainable, and environmentally friendly ideas.
The Performance Polymers Business Unit of Evonik Industries is a worldwide manufacturer of PMMA products sold under the PLEXIGLAS® trademark on the European, Asian, African and Australian continents and under the trademark ACRYLITE® in the Americas.
Evonik Industries is the creative industrial group from Germany. In our core business of specialty chemicals, we are a global leader. In addition, Evonik is an expert in power generation from hard coal and renewable energies, and one of the largest private residential real estate companies in Germany. Our company’s performance is shaped by creativity, specialization, continuous self-renewal, and reliability.
Evonik is active in over 100 countries around the world. In its fiscal year 2009 about 39,000 employees generated sales of about €13.1 billion and an operating profit (EBITDA) of about €2.0 billion.
In so far as forecasts or expectations are expressed in this press release or where our statements concern the future, these forecasts, expectations or statements may involve known or unknown risks and uncertainties. Actual results or developments may vary, depending on changes in the operating environment. Neither Evonik Industries AG nor its group companies assume an obligation to update the forecasts, expectations or statements contained in this release.