Analysis

Which? declares Good Energy and Ecotricity joint winners in latest industry customer satisfaction survey

Third report in past few days confirm slowdown in clean energy investment during 2013

New Ofgem figures reveal at least four of the 'Big Six' will qualify for a proposed bonus scheme to help them meet energy efficiency targets

Company insists group remains committed to biomass, despite Innogy unit's decision to sell off some plants

Could Shell's financial woes be a sign of things to come as oil majors face up to escalating costs?

As Sainsbury's seeks judicial review over price comparison advert, supermarket launches new campaign to highlight ethically certified products

Tar sands to drive rapid increase in emissions over the coming decades, official projections show

Banks line up to endorse new green bond guidelines, as report argues world needs to mobilise $1tr a year of clean energy investment

npower renewables rebrands and revamps business model to drive new approach to renewable energy financing

Johnson unveils plans to improve impact of black cabs, as Green Party accuses him of £150m cycling underspend over six years