European energy power companies have slashed the feed-in tariff they pay to home rooftop PV owners. The site studied 51 energy contracts and found that the acquisition price had dropped from more than 20 cents per kilowatt-hour at the beginning of the year to an average of just 8 cents.
Vattenfall, the Swedish power company, was one of the best payers, offering 16.8 cents per kilowatt-hour for customers on non-fixed energy contracts, but is now offering just 4.5 cents for customers on three-year fixed deals. The drop in feed-in tariffs is linked to a big increase in the number of solar panels. On sunny days, there is a surplus of electricity, which has led to falling or even negative prices on the wholesale market. But even with excess power, utilities are actually paying for the power that rooftop photovoltaics provide.
In light of this, the Swedish government plans to adjust the regulations for rooftop photovoltaic Internet access, as the current system costs the Treasury more than 400 million euros in lost energy taxes. The government believes that by reducing the purchase price for rooftop photovoltaics, residents can be encouraged to use more of their own electricity and invest in home battery storage systems.