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My friends and readers, Dow Solar Shingles were not just discovered yesterday. In the 1970’s PV (photovoltaics) applications for buildings began appearing, with aluminum-framed PV modules connected to, or mounted on buildings that were usually in remote areas without access to an electric power grid. In the 1980’s PV module add-ons to roofs surfaced. These PV systems were usually installed on utility-grid-connected buildings in areas with centralized power stations. In the 1990’s building-integrated photovoltaics (BIPV), construction products designed to be integrated into a building envelope (physical separator between the interior and exterior environments of a building) such as the roof, skylights, or facades, became commercially available. These materials are increasingly being incorporated into the construction of new buildings as a principal or ancillary source of electrical power, although existing buildings may be retrofitted with BIPV modules as well. According to Business Wire of April 5, 2011, “the global BIPV market will see strong growth in the coming years, with annual wholesale revenues rising from $744 million in 2010 to nearly $4 billion in 2016….”
Building-Integrated Photovoltaic modules are available in different forms: Flat roofs (a thin film solar cell integrated to a flexible polymer roofing membrane is the most widely installed flat roofs to date);Pitched roofs ( solar shingles are modules designed to look and act like regular shingles, while incorporating a flexible thin film cell and extending normal roof life by protecting insulation and membranes from ultraviolet rays and water degradation…this is accomplished through elimination of condensation because the dew point is kept above the roofing membrane.);Facades (modules are mounted on the facade of the building, over the existing structure, providing old building a new look and increase the appeal of the building and its resale value);Glazing (semitransparent modules can be used to replace elements made with glass or similar materials, such as windows and skylights.).
In some countries, additional incentives are offered for building-integrated photovoltaics in addition to the existing feed-in tariffs for stand-alone solar systems. (I promise I will go into details in explaining “feed-in-tariffs” in future posts). Since July 2006 France offered the highest incentive for BIPV, equal to an extra premium of EUR 0.25/kWh paid in addition to the 30 Euro cents for PV systems. These incentives are offered in the form of a rate paid for electricity fed to the grid.
please take a look at the next clip….>
- France + EUR 0.25/kWh
- Germany – former EUR 0,05/kWh facade bonus expired in 2009
- Italy + EUR 0.04-0.09 kWh
- Spain, compared with a non- building installation that receives 28,00 cent€/kWh (RD 1578/2008):
- <= 20 KW, 34,00 cent€/kWh
- >20 kW: 31,00cent€/kWh
- USA – Varies by state. Check Database of State Incentives for Renewables & Efficiency for more details. http://www.dsireusa.org/
Further to the announcement of a subsidy program for BIPV projects in March 2009 offering RMB20/watt for BIPV systems and RMB15/watt for rooftop systems, the Chinese government recently unveiled a photovoltaic energy subsidy program “the Golden Sun Demonstration Project”. The subsidy program aims at supporting the development of photovoltaic electricity generation ventures and the commercialization of PV technology. The Ministry of Finance, the Ministry of Science and Technology and the National Energy Bureau have jointly announced the details of the program in July 2009. Qualified on-grid photovoltaic electricity generation projects including rooftop, BIPV, and ground mounted systems are entitled to receive a subsidy equal to 50% of the total investment of each project, including associated transmission infrastructure. Qualified off-grid independent projects in remote areas will be eligible for subsidies of up to 70% of the total investment. In mid November, China’s finance ministry has selected 294 projects projects totaling 642 megawatts that come to roughly RMB 20 billion ($3 billion) in costs for its subsidy plan to dramatically boost the country’s solar energy production.
What can I say….we need MORE INCENTIVES FOR SOLAR in US if we are truly aiming for SunShot Initiative and truly aiming to lead in the renewable energy era !!
More discussions remain in future posts on incentive for solar….
Posted by sunisthefuture-Susan Sun Nunamaker, email@example.com
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