1000 roofs program

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Photovoltaic system-1000-roofs-PRG-Bremen

The 1000 roofs program in Germany was a subsidy program with the aim of promoting photovoltaics .

history

After the fall of the Berlin Wall and the end of the GDR , after much pressure from the strengthened environmental movement, the promotion of photovoltaic systems was seriously considered. In September 1990, the federal and state governments proclaimed the "1000 roof photovoltaic program".

According to the Federal Ministry for Research and Technology at the time, the aim was to “evaluate the state of the art already achieved”. In addition, the program served "to derive the development requirements still required for grid-connected photovoltaic systems with low power". In July 1991 this program was extended to the new federal states.

After the end of the 1000 roofs program in 1992, there was a gap in the funding of photovoltaic systems. Many small businesses, especially craft businesses, that saw this as a new opportunity, got into financial difficulties. Until the start of the 100,000 Roofs Program in 1999, there were only local funding programs that were largely uncoordinated.

Framework

Only grid-connected photovoltaic systems with a standard output of 1 to 5 kW installed on the roofs of one and two-family houses were funded .

The federal and state governments granted a subsidy of 70% of the system and installation costs. The 70% consisted of 50% federal and 20% federal states.

Each federal state received a quota for the maximum number of solar systems to be funded (e.g. Bremen = 80 systems), but not the full number of which was used (e.g. Bremen: only 63 systems installed).

Funding conditions

Only systems from German manufacturers were funded (even if the modules were manufactured abroad).

The subsidized systems had to start operating in 1993 at the latest.

Each system had to have three electricity meters / power meters:

  • a production meter for direct measurement of the yield of the system,
  • a feed-in meter for feeding electricity into the power grid
  • a reference meter for the power drawn from the grid.

In addition, the system operators had to undertake to read the meters up to 1998 on a monthly basis for five years and fax the values ​​to the Fraunhofer Institute for Solar Energy Systems (ISE) in Freiburg on a quarterly basis (i.e. the readings of three months) . In this way, the participants received annual results from their photovoltaic systems.

As part of this program, the Umweltinstitut Leipzig eV was commissioned to carry out an accompanying sociological study with surveys of the system operators and installation companies. Participation in this was voluntary. The results were sent to the participants.

Cost of a 2.2 kW photovoltaic system in 1993

A system with 2.2 kW standard output cost around 60,000 DM (≈ 30,000 €) in Bremen with installation.

The own contribution was thus approx. 18,000 DM (≈ 9,000 €).

The costs for the photovoltaic modules (42 Siemens M55s) were around 30,000 DM (≈ 15,000 €).

The value added tax returned to the state (for material and assembly) was just under 7,300 DM (≈ 3700 €).

Individual evidence

  1. Back then it was - A look back at the development of photovoltaics in Germany (PDF; 451 kB) dgs.de. Retrieved June 19, 2010.