Google will launch several experimental "ultra high-speed" broadband networks across the United States as part of efforts to encourage authorities to look at "new and creative ways" to progress the country's National Broadband Plan.

A small number of as yet unnamed locations will receive fibre-to-the-home (FTTH) connections with speeds of up to 1 gigabit per second (1Gbps) at prices that will be "competitive," the company said. The services would cover between 50,000 and 500,000 people..

"Our goal is to experiment with new ways to help make Internet access better and faster for everyone," wrote Google product managers Minnie Ingersoll and James Kelly in a blog post.

The company said the trial would "deliver Internet speeds more than 100 times faster than what most Americans have access to today".

Google wants to help promote the creation of ultra high-speed networks because they are necessary for next-generation Internet services and applications that are bandwidth intensive in areas like education, health and entertainment.

Google will offer its networks through what it calls an "open access" model, so that customers have access to multiple service providers.

"We don't think we have all the answers – but through our trial, we hope to make a meaningful contribution to the shared goal of delivering faster and better Internet for everyone," they wrote.

Local governments and residents can nominate their communities through March 26 through this page. Google will later announce the locations selected.