Prefab PVT roof elements operational at SolarBEAT

Within the innovation project “PVT inSHaPe”, the company Solartech installed two prefab PVT elements on the SEAC  research facility SolarBEAT. These PVT elements generate both solar heat and solar electricity from the same roof area. In the PVT inSHaPe project, we investigate the use of these elements in combination with a heat pump for space heating and domestic hot water. The goal is to generate options for realizing (near) zero energy buildings. In total three different PVT systems will be built and their performance will be evaluated.

The roof elements are prefab produced in the factory, minimizing the installation time on the roof. In this concept, the PVT system and roof isolation are part of a single constructive element. These elements are put in place using a crane.

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

HRsolar wint Innovation Award 2018 voor duurzame warmte

Vanochtend is op de beurs Duurzaam Verwarmd de Innovation Award 2018 uitgereikt aan HRsolar voor hun revolutionaire dunne esthetische zonthermische collector genaamd Nero. Zonthermische collectoren zijn over het algemeen te groot en te dik om makkelijk naast PV panelen te integreren in een dak. De nieuwe Nero collector heeft de dikte en grootte van een PV paneel met frame. HRsolar heeft in januari de nieuwe productielijn voor de Nero collector geopend. De collector is mede ontwikkeld binnen het TKI project Building STeP, waarin samen met SCX Solar en met onderzoekspartners TU/e en SEAC een multifunctioneel geïntegreerd dak is ontwikkeld. Ronald van der Ende “Zonder SEAC en TU/e hadden we dit niet kunnen doen”. Momenteel loopt een outdoor onderzoek op SEAC’s meetlocatie SolarBEAT.

Onderschrift foto:
Wiep Folkerts (directeur SEAC) en Ronald van der Ende (directeur HRsolar) voor de Nero collector.

A thinner solar thermal collector for building integration with PV

Aesthetic integration of solar energy products in the roofs of dwellings is important to achieve a good social acceptance and a high market potential. Several solutions for building integrated PV (BIPV) are available on the market, however, a very limited number of solutions for integration of covered solar thermal collectors are available. Currently, covered solar thermal collectors are much thicker and often much larger than PV modules, which complicates aesthetic integration of both PV and solar thermal collectors in the same roof.

Within the project Building STeP the company HRsolar developed a solar thermal collector with the same dimensions and thickness as a framed PV module. A multifunctional demonstrator roof with this technology has now been built on the SEAC research facility SolarBEAT. Here PV modules and a roof window are integrated in the same multifunctional roof concept by the company SCX Solar. SEAC and the TU/e are performing the analysis of the thermal and electrical performance for typical Dutch roofs, that may also include shading effects by e.g. dormers.

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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.

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.

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WenSDak project presents the state-of-art in Dutch PVT solutions

In the recently finalized WenSDak project five distinct solutions for producing solar electricity and heat on one roof were developed. These solutions are: a ventilated PV system for drying manure, a side-by-side solar thermal and BIPV roof and three different options for roofs with uncovered PVT collectors.

We built demonstration pilots for all five solutions. The electrical and thermal performance were measured in an outdoor field test as well as by means of an indoor simulator. The electrical performance of all PVT collectors was very good, while on the thermal performance several interesting correlations between design and performance were mapped out. Some uncovered PVT collectors also act as a heat exchanger. We conclude that a PVT collector has to be assessed in the framework of the total heating system for the application. The annual performance depends largely on the precise system design and the application. The WenSDak project delivered new products for the market of energy efficient buildings, while at the same time the knowledge level and operational experience for PVT solutions was brought to a higher level.

The project was executed in a consortium consisting of SCX Solar, Hotraco, SolarTech, Dimark Solar, de Mâr 2D, GEO Holland, AERspire. Suntrap, TU Eindhoven, ECN and SEAC.

More information about the project including project reports, can be found here.