Letter from group of firms including Google, Amazon, Facebook and M&S highlights key role of corporate PPAs in delivering climate and energy targets
Greenpeace says its rankings show big names such as Samsung and Amazon must demonstrate 'greater ambition' on renewables, resource use and hazardous chemicals
The tech giant and a leading US fusion company develop a new computer algorithm that significantly speeds up progress towards clean, limitless energy
Tech giant agrees Power Purchase Agreement with Enenco to secure electricity from local solar project
Alphabet Inc. already has deal to buy 100 per cent of power from 160MW Tellenes wind farm, which will become biggest in Europe once completed
Barbara Grady explores how three award-winning initiatives could transform the US power sector
Project Sunroof expands out of US for the first time, scanning seven million rooftops in Germany tp assess solar generation potential
Eco-billboards around Los Angeles and San Francisco suck pollutants out of the air
Tech giant's 'Project Sunroof' programme has analysed around 60 million buildings across all 50 US states
Company confirms it will reach milestone next year, underscoring its position as the world's largest purchaser of renewable power