If it gets the go-ahead, the tidal lagoon energy project in Swansea Bay could be the first of a series of five developments around the UK coast which could generate as much as 10% of the UK's electricity by 2023.
Tidal Lagoon Power, the company behind the project, said it was hoping that 65% of expenditure would be in the UK, boosting a homegrown supply chain and a possible future export market. The company has produced a video to explain the scheme:
The project includes creating a 10km sea reef, the reintroduction of the native oyster to Swansea Bay, an offshore visitor centre and national triathlon and water sports facilities.
According to the developers, research as part of the project's initial stages found that 86% of local residents were in favour of the scheme. The Swansea Bay project would save 236,000 tonnes of carbon a year and create 1,850 construction jobs.
Plans have been submitted to develop the world's first tidal lagoon energy project in the UK, which would provide renewable power for 120,000 homes for 120 years.
The developers of the £750-850 million project in Swansea Bay say their application is the first step to developing lagoon technology that could meet 10% of the UK's electricity needs from the tides.
The scheme would involve a six-mile (9.5km) wall built around Swansea Bay, creating a lagoon in the Severn Estuary with turbines that can harness the incoming and outgoing tides to generate power 14 hours a day.
A woman had to be taken to hospital after being bitten by a 10-foot python as she took a short-cut home from a night out at a pub in Swansea, south Wales.
Sue Cull, 47, said she felt her legs sting as she cut across grass near her home but believed she had been stung by nettles.
However within minutes of arriving home, Ms Cull's partner called for an ambulance after failing to stem the blood streaming from both legs.
Paramedics confirmed she had been bitten by a snake en route to Morriston hospital, and that police had a report of a python on the loose at the time of the incident.
Despite suffering a three-inch puncture wound in one leg and having to spend a night in hospital on an antibiotic drip, Ms Cull saw the lighter side, saying: "I posted on my Facebook page 'I'm off to the pub for a shot of snakebite' this morning and everyone who goes by bibs and waves."
Dundee, Hull, Leicester and Swansea Bay have made it through to the shortlist for the UK's next City Of Culture.
The locations were announced by Culture Minister Ed Vaizey after the independent advisory panel looked at 11 bids for the four-yearly accolade.
Locations which failed to make today's 2017 shortlist list were Aberdeen, Chester, East Kent, Hastings and Bexhill-on-Sea, Plymouth, Portsmouth and Southampton, and Southend-on-Sea.
The winning City Of Culture will be announced in November with the victor expecting a major boost in tourism and investment.
In his speech to the Welsh Conservative conference David Cameron attacks the Welsh Government, saying "Wales needed the A-team but got the Muppet Show"
He tells Welsh Conservatives the UK is in "a global race against time" against competitor countries with extreme drive.
One million children will be targeted in a measles vaccination drive across England as an outbreak in Wales continues to grow.
ITV News Science and Medical Editor Lawrence McGinty reports:
Public Health Wales is urging young people to get the MMR vaccination before the start of their exams.
56 new cases have been reported in the measles outbreak since Tuesday, bringing the total number to 942.
Public Health Wales says 83 people have now been hospitalised since the outbreak started.
One million children who missed out on the MMR vaccine in England are being targeted in a campaign to raise the level of protection against measles.
Young people who have not had either one or two doses of the MMR jab will be offered the vacine in a campaign costing £20 million at GP surgeries and schools.