1 / 25

Advances in Building Integrated Photovoltaic Technology 2

This is part of a trainng course delivered by WEST project (www.westproject.org.uk) on SolarPV 'Buildings As Power Stations'. For more information or to register please visit: https://www.westproject.org.uk/content/solar-pv

WEST_Project
Download Presentation

Advances in Building Integrated Photovoltaic Technology 2

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. BIPV Design Considerations

  2. Environmental Factors • Insolation available • Climate & weather conditions • High ambient temperature will reduce PV output • Local atmospherics such as cloud can impact • Pollution of any form can require cleaning • Shading • Latitude (affecting optimal angle of PV panels)

  3. Prof. Michael Wallis,Loughborough University • “What we are saying that if you have the solar panels facing east-west then you can even out the power during the day. You may lose about 10 per cent of power if you go east-west but this addresses a problem that exists in Germany where because everything is facing south, you get this peak power at midday which is very difficult for the grid to cope with. • “So in Germany they are advising people to go east-west so they are smoothing out the supply of power from all these solar panels. We get similar spikes of power too, although it wouldn’t make sense for people to change their solar panels if they have already been installed. • “In total we have 2.8 Gigawatts of solar in the UK but Germany has approaching 20 Gigawatts. In Cornwall they can’t install any more solar panels because the grid can't handle it.”

  4. BIPV Building Technologies

  5. Bifacial PV Cells • Cells encapsulated within glass, allowing light to be captured from both sides of the cell. • This improves the efficiency of the cell. • Bifacial cells are prized for their aesthetic properties, and are often used on canopies of shades. • They are useful architecturally as they allow some light through to the area below, but also provide shading. • Bifacial cells offer a 25-80% energy power advantage1 over monofacial cells. 1.http://www.nrel.gov/technologytransfer/pdfs/igf20_gamma.pdf

  6. Glass PV roof • Using the glass PV panel itself to form the surface of the roof

  7. Glass PV roof Striking when used in large areas

  8. PV Skylights Range of interesting ‘transparent’ thin film and organic technology trajectories. Onyxsolar.com

  9. PV Skylights cont. • These can be installed as the skylight glass itself • An alternative is as an additional layer over the skylight itself. This has the added bonus of ease of maintenance/repair and added insulation and cooling • PV’s can either be: • Opaque, with clear glazing between adjacent cells allowing light through. • Semi-transparent – DSC technologies and suchlike, which allow some light through. • Newer technologies promise “see through” photovoltaics, which attenuate the light, but allow for clear vision.

  10. PV Canopy gepower.com

  11. PV Canopy • One of the simplest installations Gaining popularity in warmer climes where shading of parking is often normal • Visibly promotes charging of cars (if a charging point is fitted) and gives visitors an early indicator of company ethics Silicon Based Bifacial Cell onyxsolar.com

  12. Dye Sensitised / Semi Transparent

  13. PV Building Façade • Designed as a façade that generates energy as well as performing as a façade • In this example, the manufacturer (ruukki.com) provides a complete mounting system with studs, flashings, fasteners and electrical components. There are no visible cables and no wall penetration for the electrical install (easier to install and maintain)

  14. PV Building Façade cont. EWE Arena Oldenburg, colt 2009 M9 ARCHITEKTEN Senfter + Lanzinger Schott Solar

  15. PV Building Façade cont. • As on the previous page, the façade can be used to provide shading to the occupants • Shading can be constant, intermittent, fixed or movable, such as these examples of brisesoleil • ertex-solar.at

  16. Retrofit can be used to improve the quality of the built environment. • Many buildings with system built concrete / exposed finishes. Structurally sound, but exterior facades suffer from spalling. • PV offers an attractive solution.

  17. Price of façade materials (2011) • Figures based on Odersun products and are Euro per m2

  18. Brise Soleil • This is not a picture of a solar installation. • These are plain old boring Brise Soleil! • BUT, illustrates an interesting point. • City centre school in Nimes (France) • Unintended consequences • Kids use as a climbing frame!

  19. Spandrels and Parapets • Spandrels are part of the exterior wall of a building (between the floor and the bottom edge of the window). • Parapets are waist-high barriers at the edge of balconies, bridges, etc. Semitransparent PV modules integrated into spandrels/parapets can obscure the view of the inside, while allowing a free view of the outside. • Structurally, they have the properties of laminated glass and can be used to create attractive accents on the façade (solarfassade.info)

  20. Spandrels syracuseglass.com archpaper.com bisem-usa.com

More Related