New proposals would kill solar and wind in the European UnionAs intermittent renewables gain a greater share of the electricity supply we should expect the non-renewable providers to push back. If you only pay spot prices to wind and solar they will not be economic, as they can drive spot prices to zero with over supply - especially as they become a greater percentage of supply. Probably why we are seeing such issues in Europe, where intermittent renewables have a high share in may countries. Will be an issue until we have the capability for grid-scale storage.
"In mid-May, European grid regulators spoke out against priority grid dispatch for renewables. If the European Commission adopts their suggestions into law, it will be hard to add more wind or solar capacity"
"The problem, as the experts certainly know, is twofold. First, wind and solar react to the weather, not to prices. From the grid operator’s perspective, this situation is undesirable: they want generators that produce more power when needed and less when not. Solar and wind cannot be switched on.
Second, solar and wind cannibalize themselves. When the wind blows and the sun shines, more power is generated, so power prices on spot markets go down. If no payment is ensured for curtailment, it doesn’t matter how cheap solar and wind get; they price themselves out of the market. In other words, if you want wind and solar, you want guaranteed payments for them. Calls for them to make do with spot prices (and, eventually, forgo curtailment payments) are tantamount to saying, let’s just not have wind and solar, shall we?"
https://energytransition.org/2017/06/new-proposals-would-kill-solar-and-wind-in-eu/