Comment Re:Stationary Grid Battery (Score 1) 76
Wind and solar power fluctuate a lot. So when electricity production is high the price drops, and the producer has to choose between stopping production, which is difficult, or selling at a negative price.
This has led to negative prices for electricity generation becoming more common in the US and Europe. Negative electricity prices mean that energy producers pay money to supply the extra energy. But what we see here in the UK is that grid operators sometimes pay producers to turn off production, which is expensive.
What happens to consumers of negatively priced energy? Most, not all, consumers have fixed-price contracts and are not directly effected. In Northern Europe, many have contracts that reflect fluctuating production prices. Prices still are positive, and not free, due to other costs. But it should hopefully lead to better consumption habits, such as charging electric cars when prices are low.