“Today’s announcements show renewables’ costs are plummeting, and will mount a growing challenge to conventional sources of power in delivering energy security for the UK. Those who say we should tackle climate change but are opposed to wind and solar farms need to explain how they plan to cut carbon emissions whilst keeping consumer bills as low as possible. We’ve known onshore wind is much cheaper than nuclear for a while, but now we learn that solar power is already cheaper than new gas generation in some cases.