Airline teams up with Boeing to trial jatropha-based fuel with a view to starting biofuel-powered services to Costa Rica

UK firm says clean, bio-degradable fuel has potential to supplant diesel without impinging on land use

New feed-in tariff rates make bid to expand solar arrays on works sites "uneconomic"

Claire Gibson, general manager at the Cornish testing facility, outlines what it takes to pilot a successful green energy project

Higher feed-in tariff rates will not come into effect today as planned after delay to European Commission state aid approval

Solar farm feed-in tariffs fall 70 per cent from today as around 20 projects beat controversial deadline

Government figures predict small rise in costs for energy-intensive industries ahead of proposed support package

Company founder Dale Vince and Welcome Break chief executive Rod McKie on fitting electric car chargers at motorway service stations

Potential trade war edges closer as politicians declare "united opposition" against EU's plans to cap aviation emissions

But consultation will give developers until October to extend existing solar farms