Siemens

Wind power firms express concern over future policy and reveal how investment in the UK's energy infrastructure is on hold

German engineering giant to increase stake in tidal developer from 45 to 100 per cent

Siemens and Johnson Controls win energy performance contracts for solar, wind and retrofit projects to improve efficiency

Almost 90 per cent of capacity added in 2011 was in UK waters, with Siemens supplying most of the 235 turbines installed

Carbon Trust and Siemens analysis reveals many employers will struggle to access energy efficiency loans due to poor credit profiles

Danish company buys a third of two offshore wind projects being developed by Siemens and Mainstream Renewable Power

Proposed factory, built by Associated British Ports, is set to create 700 jobs manufacturing 6MW turbines

German giant signs agreement with Shanghai Electric Group to create two joint ventures manufacturing wind energy equipment

US company's data management software will be used in Siemens' own products following acquisition

Renewable energy division made €154m loss in final quarter 2011, after solar business incurred charges of €231m