Despite the solar campaign: No photovoltaic system on the roof of the Denklinger Citizens' and Clubs' Centre

Created: 08/11/2022, 12:00 p.m

The roof of the new community and club center in Denklingen is almost 100 meters long.

Photovoltaic systems will not be built on it, however, following a municipal council decision.

© Jais

The Landsberger Energieagentur (Lena) has started a solar campaign with information evenings in 31 communities and also advertised in Denklingen.

But no photovoltaic system will be installed on the large roof of the community and club center in Denklingen.

Instead, the electricity is obtained from a private provider who operates an open-space photovoltaic system 300 meters away.

Denklingen

– The decision not to install a photovoltaic system on the roof of the new Citizens' and Clubs' Center (BVZ) in Denklingen was initially taken behind closed doors by the Denklingen municipal councils.

This decision was made by a vote of 14 to zero, according to the points made public at the most recent meeting.

Several reasons are given for the decision not to have a photovoltaic system on the roof of the BVZ.

The company "Ökostrom24", which installed modules on an open space south-east of Denklingen, stands by its contract and would supply the BVZ with electricity.

Connecting cables and transformers are not available

A simultaneous delivery of electricity by "Ökostrom24" and the operation of your own photovoltaic system on the roof of the BVZ is technically not possible because the connection lines are not designed for such a high output, the reasoning is given.

Even the transformer only has 250 kilowatts.

This statement applies both to the feeding in of the electricity and to the self-consumption of the electricity from a possible system on the roof.

In the case of modules on the roof, there is no feed-in because the cables and the transformer are required to supply electricity to the BVZ.

Self-consumption of the electricity produced on the roof can no longer make sense because the production costs for this are almost identical to the electricity prices to be paid to “Ökostrom24”, according to the justification for the municipal council decision.

If delivered by "Ökostrom24", the municipality would avoid the investment measures on the roof.

Power consumption could triple

In July, Berthold Lesch from the Landsberg Energy Agency (Lena) spoke to the Denklinger municipal council about the energy transition and announced a separate information evening for citizens in September.

PV systems are "no longer just a crazy thing," said Lesch during the lecture in the citizens' hall.

The power consumption will triple overall, the Lena boss had said.

This also has to do with the trend towards electric cars that do not emit any CO2 when driving.

Landsberg is one of the sunniest districts in Germany - this also speaks for PV modules.

A difference of six megawatts peak

Experts speak of the unit kilowatt peak.

For a kilowatt peak you need about three modules on the roof.

This can generate 800 to 1000 kilowatt hours a year.

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Lena boss Lesch had made the following calculation for Denklingen: The usable potential for roof areas in the community is 17,000 kilowatt peak (KWp) or 17 megawatt peak (MWp).

23 MWp is needed for the community with 2900 inhabitants.

There remains a difference of six MWp.

Electricity price would be constant for 20 years

On the basis of these figures, the community of Denklingen would also need a system in the open field with the best use of all roof areas, which is about six hectares in size.

The solar field to be built north of the Hirschvogel company will be almost as large.

However, the electricity is used for company operations and not for Denklinger households.

In addition, as recently reported, the company would like to tap electricity from the wind power plant in the Leeder municipal forest - via the line that leads from the forest down to the Lech dam near Denklingen, where Hirschvogel has its own substation.

At the presentation in Denklingen, Lena board member Lesch used the argument for photovoltaic systems in July that the price for the electricity that was fed in was constant for 20 years.

For the information evening in the communities, he had announced that he would address the keywords climate change, large systems in open spaces and solar systems for homeowners as the three main topics.

There were no more questions after the presentation in the municipal council.

John Jais

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