One of the first zero-energy modern homes in the world, by German architect Rolph Disch

This rotating solar home was the seed for the extraordinary Sonnenschiff Solar Development and the modern solar movement in Germany. The home takes full advantage of the sun by rotating with it, allowing daylight to course though its triple-pane windows and energise its large roof-mounted solar array and solar thermal pipes. The result is a zero-energy modern home that actually ends up generating five times the energy it consumes.

Knappt har Sveriges första passivhus byggts 
Tyskland plusenergihus
producerar mer energi än de förbrukar
främst solenergi
pionjär arkitekten Rolf Disch 
Heliotrop roterar för att följa solen på vintern
och skydda sig mot solen på sommaren
Hans arkitektbyrå's

Fler bilder här

Företaget Prime Project i Skåne bygger en villa i Åkarp

Man skulle ganska enkelt kunna åstadkomma plusenergihus i tätorter med fjärrvärme
addera sedan möjligheterna med kraftvärmepannor med stirlingmotor, rökgasturbo
eller Climate Wells principer för att lagra värme och kyla i salt så öppnar sig
enorma möjligheter till energieffektivisering.

Photovoltaics (PV) is a method of generating electrical power by converting solar radiation into direct current electricity using semiconductors that exhibit the photovoltaic effect. Photovoltaic power generation employs solar panels comprising a number of cells containing a photovoltaic material. Materials presently used for photovoltaics include monocrystalline silicon, polycrystalline silicon, amorphous silicon, cadmium telluride, and copper indium selenide/sulfide.^[ Due to the growing demand for renewable energy sources, the manufacture of solar cells and photovoltaic arrays has advanced considerably in recent years.

As of 2010, solar photovoltaics generates electricity in more than 100 countries and, while yet comprising a tiny fraction of the 4800 GW total global power-generating capacity from all sources, is the fastest growing power-generation technology in the world. Between 2004 and 2009, grid-connected PV capacity increased at an annual average rate of 60 percent, to some 21 GW. Such installations may be ground-mounted (and sometimes integrated with farming and grazing) or built into the roof or walls of a building, known as Building Integrated Photovoltaics or BIPV for short. Off-grid PV accounts for an additional 3–4 GW.

Driven by advances in technology and increases in manufacturing scale and sophistication, the cost of photovoltaics has declined steadily since the first solar cells were manufactured. Net metering and financial incentives, such as preferential feed-in tariffs for solar-generated electricity, have supported solar PV installations in many countries.

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