Solar

Tata Steel invests £10m in projects to turn building materials into renewable energy generators

World's largest supplier of rare earth metals also tightens export restrictions

Transparent solar film promises to top up mobile device batteries without the need for wires

The Spanish government has slashed its solar power subsidies

Pew report tips Asia to overtake Europe as largest destination for funds in the coming year as UK and US slip down investor rankings

Excluding renewable energy projects from government investment schemes is disastrous for community scale solar, warns industry

A rundown of the key announcements affecting green businesses

Climate change minister insists slashed incentives will put feed-in tariff scheme on a firmer footing

Solar industry slams government "betrayal", threatens legal action and high-profile campaign to save incentives