The plant in the US state of California stores enough energy to power 20,000 homes for four hours.

Manchester City produce yet another dominant performance to win at Leicester and extend their Premier League lead.

There is widespread jubilation in the capital Harare, as people take to the streets calling on President Mugabe to stand down.

England make it five wins on the bounce over a resurgent Australia as a late trio of exhilarating tries secure a 30-6 victory.

Preview followed by live coverage of Saturday's Premier League game between West Bromwich Albion and Chelsea.

Coach Trevor Bayliss tells England fans "don't miss a ball" of the Ashes series because his side are not in Australia to "make up the numbers".

The BBC's Anne Soy meets jubilant Zimbabweans hoping for change after the army takeover.

Five thousand barrels leaked from the Keystone pipeline.

Beauden Barrett denies Stuart Hogg with a brilliant tackle in the last minute as Scotland narrowly miss out on a first win over New Zealand.

Paul Pogba scores on his return from injury as Manchester United beat Newcastle United to set a club record of 38 games unbeaten at Old Trafford.

Britain's Jamie Murray and Brazil's Bruno Soares lose to Henri Kontinen and John Peers in the last four at the ATP Finals in London.

Gerry Adams tells delegates it will be his last ard fhéis (party conference) as Sinn Féin leader.

José Manuel Maza led efforts to charge Catalan leaders over the recent independence referendum.

Could Pep Guardiola's Manchester City be the first team to win 100 points in the Premier League?

The US says the Palestinians can't have an office if they pursue Israelis at an international court.

A US warship suffers slight damage after being struck by a Japanese tug.

England coach Eddie Jones dismisses claims his side were lucky after a series of tight calls in their 30-6 victory over Australia.

Belfast boxer Carl Frampton beats Mexican Horacio Garcia on points on his return to the ring after 10 months out of action.

Captain John Barclay reflects on 'one that got away' after Scotland come close to beating New Zealand for the first time.

Paul Pogba is labelled "different class" by Manchester United boss Jose Mourinho after returning from injury with a goal and an assist.

Floods have been a deadly staple of 2017. But can you protect yourself against the natural disaster?