Switzerland’s residential battery market is growing fast. Around half of new photovoltaic installations are now paired with storage, according to Swissolar. Falling battery prices, lower payments for surplus solar power and the prospect of more flexible electricity tariffs are all helping to drive demand. But popularity should not be confused with profitability.
In Switzerland, solar power already supplies about 14% of electricity demand. That creates a new problem: what to do with the surplus, when on sunny days generation exceeds consumption. Batteries offer one answer. More owners of single-family homes are pairing photovoltaic panels with storage, allowing excess power generated during the day to be used later. Used intelligently, these batteries can attenuate peaks in demand
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