NNew circumstances create new decisions. Above all, new prices create new decisions. A photovoltaic system used to be something for enthusiasts who, buffered by high feed-in tariffs, succumbed to the appeal of a small contribution to environmental protection. Whether that was always the case, given the production methods, remains to be seen. The system usually pays for itself after ten years, as long as nothing breaks along the way. Economists tend to shudder, but the author of these lines has had one on the roof for seven years without any problems, his neighbors even more than ten years.
The declining feed-in tariff, which has now reached 6.2 cents per kWh, now allows other thoughts. With an electricity price of 50 cents per kWh, two things become attractive: self-consumption and storage. Anyone who uses the PV system to supply the cooker and dryer, operate the swimming pool pump, heat with a heat pump or charge the electric car will have to ponder the enormous price difference. Well, most people don’t ponder and don’t calculate at all, but rather order come hell or high water, probably also the thought of wanting to become more independent of the warmonger in Russia.
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