Microsoft has announced "Hohm", describing it as a new online application that lets consumers "better understand their energy usage, get recommendations and start saving money".
A US launch, Hohm takes analytics from the Lawrence Berkeley National Laboratory and the US Department of Energy to offer personalised energy-saving recommendations.
"We believe technology will play a pivotal role in tackling the global energy issues we currently face", said Craig Mundie, chief research and strategy officer at Microsoft.
"Microsoft Hohm demonstrates how a combination of advanced software and Internet-based services can help people track, understand and manage their personal energy usage".
Said to be easy to use, the beta application is available for free to anyone in the United States with an internet connection at http://www.microsoft-hohm.com.