Transparent polymer covering from Enerize boosts PV module conversion efficiencies

Share on facebook
Facebook
Share on twitter
Twitter
Share on linkedin
LinkedIn
Share on reddit
Reddit
Share on email
Email

Product Briefing Outline:
Enerize Corporation has developed a new design for PV modules using a
proprietary transparent polymer material that is claimed to outperform
glass conventionally used as a protective covering. The proprietary
polymer material is highly transparent, and stable under UV and
ionizing radiation exposure. The new highly transparent polymer
material can be applied directly to the PV module surface at low
temperatures, eliminating the need for the adhesives required with
glass and some other polymers. Evaluation of the new Enerize polymer
encapsulation materials has been carried out using PV modules that
include up to five solar cells with a surface area of 72cm2 each.

Problem: Conventional glass has several disadvantages as a protective covering for photovoltaic modules. Glass is relatively heavy, brittle and reflective. Light reflected from the glass surfaces (both exterior and interior) does not reach the solar cell underneath, and glass tends to block ultraviolet light, thus reducing the energy that can be obtained from this part of the spectrum. PV modules that use glass comprise a multi-layered structure that is more expensive and complicated to manufacture as compared to the new polymer coated design.

Solution: In conventional designs using glass, the efficiency of the PV module can be decreased by 7% or more as compared with a PV module without a glass covering, according to Enerize. When PV modules are coated with its polymer encapsulation and protective coating materials the conversion efficiency is increased as compared with the same PV module having no covering. Compared to PV modules laminated with glass, those coated with Enerize polymer coating materials exhibit an increase in efficiency of as much as 25% or more. For example, as compared to a PV module laminated with glass having an efficiency of 16.45%, a PV module with the same type of solar cells coated with Enerize polymer material has an efficiency of 21.2%, according to the company. This increased efficiency is due to better utilization of light in the shorter (UV) wavelength range of the spectrum, high transparency of the polymeric coating in the UV range compared to that of glass, and the capability to be formed with a relief or  “crinkle coat ” surface morphology. This surface morphology more efficiently captures photons over a wider angle of incidence. The polymer’s low reflectance as compared to glass, and the elimination of the interior surface interface, both result in reduced photon loss through reflection.

Applications: Enerize transparent polymer materials and coating technologies can be used to improve conversion efficiencies and overall performance of mono-crystalline, multi-crystalline, amorphous silicon photovoltaic and non-silicon-based PV modules such as CIGS.

Platform: The new highly transparent polymer material can be applied directly to the PV module surface at low temperatures, eliminating the need for the adhesives required with glass and some other polymers. This eliminates the multi-layer structure including the reflective surfaces present with glass. No glass is used with this polymer coating. The polymer can be formed as a flat smooth surface or as a “crinkle coat ”. The “crinkle coat ” version further enhances photon collection efficiency due to the light concentrating effect of the polymer material and its surface morphology.

Availability: May 2008 onwards.

7 June 2022
The Renewable Energy Trading Summit is the only event in Europe dedicated to renewable energy trading and will bring together renewable power asset owners, investors, exchanges, intermediaries and large energy buyers to discover the future of power sales. This unique event is designed specifically for the most senior players and will provide an excellent forum for business deals, networking and learning. The energy transition is gathering pace with renewable energy attracting increasing sums of capital each year. Solar and wind deployment is increasing annually and governments are ever-more reliant on the renewables sector to stimulate moribund economies. Retirement of fossil fuel assets continues in the background. However, without subsidies and uncertainty around PPAs, renewable asset owners are heading into the wholesale markets to trade power but are they ready for the volatility in revenue this will entail?
9 June 2022
The proliferation of solar PV and other renewables is a cornerstone of the emerging new power system and, as a result, the solar industry has entered its fastest-growth period. This has become typified by surging demand for high-power PV modules that both produce more power and are more efficient than their predecessors. Providing a significant boost to power outputs, large-format modules have become a popular choice for customers the world over. Outdoor testing of modules is now providing empirical evidence of the benefits large-format modules produce, providing a crucial benchmark and invaluable data for customers to evaluate their module selection and procurement processes. In this PV Tech webinar, experts from TÜV Rheinland, CPVT and Trina Solar will discuss how to ensure science based and precision testing under field conditions, how empirical data is collected and analysed during TÜV Rheinland and CPVT’s outdoor testing, the empirical data behind a 670W module’s ultra-high power, and more.
14 June 2022
Join us in Napa to unlock the key to reliable PV module supply to the U.S. market in 2022 & 2023. We'll also be gathering the main players in the US solar market for some wine tasting!
15 June 2022
Consumers are turning to residential renewables in significant numbers, driven by a desire to be environmentally conscious and a wave of high power prices. But turning green requires easy-to-use and, above all, safe technologies that meet expectations. Huawei is committed to building efficient, safe, reliable and grid-supporting smart PV plants that also provide smart services to consumers, and its Residential Solution has been tailored to meet consumer demand. This webinar will demonstrate the full suite of technologies offered within the Huawei Residential Solution, including a smart energy controller, smart AC charger, and AI-powered energy storage solution, and detail how it can place power back in the consumer’s hands.
22 June 2022
The 11th edition of the Large Scale Solar Summit is coming to the US after 10 sell-out years in Europe! Designed as a meeting place for deal-making, we will not only discuss the most up to date topics and technologies but will also provide varied networking platforms so that developers, EPCs, manufacturers, asset owners, and investors can connect with possible clients and partners. In a year expected to break records for the solar market, join us in Texas to meet with the top players in the industry and expand your network as business booms.
19 July 2022
As New South Wales is gearing up to become a renewable energy superpower, an exciting clean energy event is coming to Sydney. Energy Next is a free-to-attend industry event focusing on the latest renewable energy and energy management technologies, which will be held from 19-20 July 2022 at the ICC Sydney in Darling Harbour. Organised by the same people behind the country’s largest clean energy event, All-Energy Australia, Energy Next will bring a quality exhibition and technical session series to NSW. Energy Next will also host the Clean Energy Council’s Solar Masterclass with a program developed for solar designers and installers. Across two days, Energy Next will provide an extensive exhibition, workshops and networking opportunities for those working in the renewable energy industry to meet with leading suppliers, discover the latest technologies and gain an understanding of how to successfully launch new clean energy projects.

Read Next

May 27, 2022
Solar O&M solutions provider Ecoppia is navigating ongoing component shortages while expending its operations into new geographies and ramping up production of its latest PV panel cleaning robot.
May 27, 2022
The CEO of US solar and energy storage developer Borrego has said the company’s project development business will be less capital constrained under the new ownership of investment firm ECP, following a deal announced earlier this week to spin off and sell the unit.
May 26, 2022
US solar and energy storage developer Borrego will spin off and sell its development business, including its more than 8.4GW PV project pipeline, to investment firm ECP.
May 26, 2022
Danish developer Better Energy has partnered with Finish solar company Forus to develop more than 1GW of solar PV in Finland.
May 26, 2022
Leading solar manufacturers have implored governments to implement tax credits and other financial incentives to stimulate domestic PV manufacturing.
May 26, 2022
Spanish utility Iberdrola will invest €3 billion (US$3.2 billion) in green hydrogen, the company’s chairman, Ignacio Galán, has announced as he called for a stable European framework to boost investment in the technology.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
June 7, 2022
Leonardo Royal London City, London, UK
Solar Media Events
June 14, 2022
Napa, USA
Solar Media Events
June 22, 2022
Sheraton Austin Hotel at the Capitol, Austin, Texas