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Electricity storage systems are becoming economical

Photovoltaic systems are already a financially rewarding investment for homeowners today. Coupled with a solar power storage system, the profit will increase even more in the future. This is because storage systems are on the verge of becoming economically viable. This is the result of calculations by the Solar Cluster Baden-Württemberg.

The limit is 1000 euros/kWh

In the last twelve months, the costs for storage batteries for PV systems have fallen by an average of more than 10 %. "In the first quarter of 2017, they were in some cases only around 1150 euros per kWh of storage capacity," says Carsten Tschamber from Solar Cluster. The limit below which the small storage systems bring in more than they cost when used for 20 years is around 1000 euros, assuming a small increase in electricity prices. If you subtract the KfW subsidy, which decreases every six months, the first storage products already reach economic viability with good planning. By the end of the subsidy in 2018, the batteries could become up to 20 % cheaper - a purchase would then be worthwhile for the consumer even without government subsidies.

The cost of solar electricity from new PV systems on residential buildings has now fallen to as low as 8 Ct/kWh - household customers pay more than three times that for grid electricity. That is why it is worthwhile for them to consume as much of it as possible themselves. Solar batteries help to double self-consumption from 30 to 35 to up to 70 %.

Source: Post from 23.5.2017 on www.geb-info.de (no longer online, as of January 2021)


Keywords: Construction and operating costs, DE-News, Energy storage, Renewable, Funding, Electricity storage, Ecology
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