Berichten

Ever wondered about the cost of cleaning a solar PV system?

Soiling can be a substantial loss factor for PV installations. Cleaning the solar system is the most common solution to mitigate soiling losses, but it comes with a cost…

Marco Cappa, a graduate student at SEAC from the TU/e, studied the cost of cleaning PV systems. This study was performed in the framework of the project “Anti-Soiling and PV”. The graph presented above shows the dependence between the cleaning cost and PV system size. The curve has been derived from data provided by more than 20 stakeholders among which: solar cleaning services, solar developers, monitoring companies and PV system operators. The cleaning cost per kWp decreases sharply with the size of the plant, due to economies of scale.

This study is an important input for the business case analysis for anti-soiling coatings for PV modules.   The study will be presented in the upcoming EU PVSEC conference taking place in September 2018 in Brussels. For more information about the “Anti-Soiling and PV” project click here and for more solar news follow us on LinkedIn by clicking here.

SEAC presents a new market survey of PVT products

The market for Photovoltaic-Thermal (PVT) systems is growing. And so is the number of PVT module suppliers. In a recent market survey SEAC found 54 different PVT module types that are currently being sold. 11 of these originate from the Netherlands. Uncovered flat plate PVT collectors make up roughly 75% of the product portfolio.

SEAC identified opportunities and barriers for PVT, based on interviews with 28 stakeholders  and on literature review. The main market opportunity for PVT are applications where the available roof area is the limiting factor. Then PVT offers the highest total energy harvesting (heat plus electricity).

Another market opportunity is a combination of PVT with heat pumps and the possibility to achieve a (near) zero energy building with these technologies.  Compared to side by side PV and thermal modules, the more unified appearance of PVT offers a more aesthetic solution. The largest barrier for PVT applications is the complexity of the system design and its installation. Furthermore, the high upfront costs and the lack of standardization were mentioned as barriers.

You can read the SEAC report by clicking here. For more solar news follow us on LinkedIn by clicking here.

Discover the booming Dutch solar energy sector by watching this inspiring video!

In 2017, the Netherlands achieved a new milestone reaching an installed PV capacity of 2.5 GWp. To discover the exponentially growing Dutch solar energy sector, watch the inspiring video by clicking here. For further acceleration of the growth towards 40 to 50 GWp in 2030, innovation in PV systems and applications remains crucial.

We at SEAC are highly motivated to expand our contribution, working together with companies and universities in innovation projects for the solar energy system of tomorrow. We believe that innovation is crucial on all SEAC’s platforms of research and consultancy: (1) solar energy in buildings (BIPV, solar thermal and PVT), (2) PV integration in the infrastructure, (3) floating PV plants and (4) PV in the energy system. This is how we make solar energy more profitable, more effective and more powerful.

For more information about SEAC’s activities visit our website by clicking here.

New combination of solar park with district battery in Weert

A solar park of 1.2 MWp in combination with battery energy storage is going to be realized in 2018 in Weert. The project is the first in the Netherlands to combine a cooperative district battery with large-scale local generation of renewable energy. The battery is used for self-consumption, energy trading and grid balancing in order to make local energy storage cost-effective.

The project called COOP-STORE is a cooperation of SEAC with WeertEnergie, Scholt Energy Services and Soltronergy. In this project, SEAC analyses the business cases of residential storage deployment in the low voltage grid, district storage deployment in the medium voltage grid and large-scale storage deployment in the high voltage grid. As a reference, all cases will be compared to the option of grid reinforcements for minimizing curtailment.

Watch this video to discover the effect of shading on solar roofs and what can you do about it!

Watch the informative video by clicking here.

Shading is a major loss factor for PV systems on roofs. Shadow can result from trees, poles, dormers, chimneys or nearby high-rise buildings. In this video these effects on the I-V and P-V curves of the PV modules are presented in a straightforward way. The video is a result of one of the SEAC experiments on mitigation of shading effects on PV systems.

This video will make you discover Solar Energy innovations at SolarBEAT!

You can watch the video of SolarBEAT by clicking here.

Solar Building Elements Application Test site (SolarBEAT), is the name of SEAC’s outdoor research facility in the field of BIPV(T) where independent measurements and innovative research studies in the field of solar PV and solar thermal energy are conducted. It is a collaboration between SEAC and the TU/e and is situated on the Vertigo building of TU/e. More information about SolarBEAT can be found here.

In case you are interested in research, development, or innovation at SolarBEAT, please contact us!

SEAC’s field testing facility SolarBEAT is fully booked!

Dutch companies are rapidly bringing new building integrated solar systems to the market. This explains the increasing need for high quality performance research on such systems. SEAC works in the outdoor test facility SolarBEAT fully based on IEC-61724 norms.

To support these field testing needs, SEAC developed a brand new pyranometer calibration setup. It comprises of an adjustable rack fitted with 7 pyranometer holders facing due south. The calibration is achieved with the help of a secondary standard robust pyranometer placed in the middle position, which is sent for calibration every year, according to the world standard. Currently there are 9 active test fields ran by SEAC, for which 19 pyranometers are used in total. These pyranometers are calibrated annually.

Solar Building Elements Application Test site, in short SolarBEAT, is the name of SEAC’s outdoor research facility in the field of BIPV(T) where independent measurements and innovative research studies in the field of solar PV and solar thermal energy are conducted. It is a collaboration between SEAC and the TU/e and is situated on the Vertigo building of TU/e.

More information about SolarBEAT can be found here. For more solar news follow us on LinkedIn by clicking here.

ZigZagSolar façade installed in Sittard

This month the installation of a creative ZigZagSolar façade was completed on an apartment building in Sittard. The concept enables in an original way to harvest solar energy and at the same time have full aesthetic freedom. The ZigZagSolar concept is developed by WallVision with the support of SEAC. It went through extensive field testing at SolarBEAT for more than two years. ZigZagSolar is an architectural façade concept which uses a combination of a PV system tilted towards the sun and decorative panels facing the observer. The PV panels remain hidden while the decorative panels can be designed according to the architectural requirements.

The ZigZagSolar installation in Sittard covers 400m2 of the façade, is oriented South and will deliver 30,000 kWh/year in total. Partial shading effects have been tackled by a smart electrical design. As a follow-up Wallvision and SEAC are working on solutions which can further improve the yield of the ZigZagSolar façade application.

More details regarding the ZigZagSolar demo tested at SolarBEAT can be found here. For more solar news follow us on LinkedIn by clicking here.

Invisible solar collectors can even be red or white

The first demonstration of the novel façade solar thermal collectors of the FITS4E project has been installed at the outdoor testing location SolarBEAT. The project aims to demonstrate façade panels with an invisible thermal solar collector for increased energy harvesting. ‘FITS4E’ focusses at application development, system design, performance testing, demonstration and dissemination. The performance of the panel will be tested for a full year at the outdoor testing facility of SEAC. TNO is the project leader, Emergo is responsible for developing the collector and façade element and AkzoNobel for the smart coating.

For more information about the project click here. For more solar news follow us on LinkedIn by clicking here.

SEAC presents the BIPV Status Report 2017

SEAC and SUPSI presented the new version of the BIPV Status Report at the recent EU PVSEC conference in Amsterdam. The report provides a comprehensive insight into the status of building integrated solar energy in Europe. The report is a result of a long term cooperation between SUPSI in Switzerland and SEAC in The Netherlands. The previous version of the status report celebrated more than 100.000 downloads. This new report covers BIPV technology trends, BIPV pricing and products available in the market. In addition it contains some iconic BIPV case studies.

You can download the report by clicking here. For more solar news follow us on LinkedIn by clicking here.