Renewables are cheaper than ever, so why are household energy bills only going up?

Not for the first time, global energy markets are in turmoil. Internationally traded gas prices more than quadrupled in 2021. In their wake, many energy suppliers have gone bust and household bills across Europe are set to soar. Energy prices are driving up the cost of living and inflation, but this is also a moment to realize the old saying: "never waste a good crisis."