More must be done to ensure the Olympics zone is sustainable after the Games, according to the head of a commission looking into its legacy.
Last week, marked two years until the Games start and organisers saying everything was going according to plan.
However, Shaun McCarthy, chairman of the Commission For A Sustainable London 2012 said it was time to look beyond the event and begin to focus on areas such as targets for green living.
He said: "In 2012 the park will be great with solar panels everywhere and modern environmentally friendly technologies, but in 2016 there's an expectation from Government of zero carbon homes and the plans won't support that.
"That's something the Olympic Park Legacy Company has to deal with."
The Olympic Village should contain 2,700 homes by 2016. However, these will only be up to what is known as code level four - efficiency build - whereas Government policy calls for code level six - zero carbon.
"The design of housing has got to the stage where you now need hardly any heating but you need electricity and that has to come from somewhere," said Shaun.
"I'm trying to make sure everyone moves on in their thinking.
"The OPLC will be letting a number of developments over the next 30, 40 and 50 years and the standards will have to be high.
"Also they need to provide the infrastructure to cater for those standards and need to come up with a scheme for zero carbon energy, such as bio-gas or something similar."
One idea, according to Shaun, is anaerobic digestion, which sees food gas turned into energy and is successfully used on the continent.
Shaun and his committee will continue to keep a close eye on the work of those connected with the Games.
He is adamant they will not repeat the mistakes he experienced while working in another role in connection with Heathrow's Terminal Five.
"As we got closer to opening time various things got brushed under the carpet and I don't want to see that happen here," he said.
Despite his concerns, Shaun said there had been much good work done in the build-up to the Games.
"It's very much a landmark for everyone involved in the project and it's something to celebrate," he said. "There's two years to go and the media coverage has been overwhelmingly positive and that's great.
"The Olympic Delivery Authority has done a great job of delivering a substainable construction project and Locog looks like doing the same when it comes to running the games."
For more information on the Commission for a Sustainable London 2010, visit www.cslondon.org Article taken from www.wharf.co.uk