Aerial images captured by geographic mapping company nearmap have visually tracked the copycat trend and revealed that solar power is contagious.

A nearmap spokesman said photographs taken across the country revealed a tendency for neighbours to follow the lead of one green house in their street, sparking a frenzy of solar installations in one pocket of the community.

Canberra was no exception. An area of Crace seemingly followed the trend, with panels popping up around Vandyke Street, Zanci Street, Wadeye Street and Benalla Street.

The installation of solar is soaring across Canberra, and some of the city's big buildings are being prepped for panels.

The ACT government will spend up to $3.3 million to install one of the nation's largest rooftop solar arrays at Canberra Hospital.

The Royal Australian Mint will be covered in more than 900 solar panels, one of the largest installations of its kind on an Australian building. The panels are expected to be ready for use in November and will cut greenhouse emissions and save money.

Meanwhile, the territory's next solar farm, which could be established further afield, will include technology to store power and reap the benefits of the sun even when it isn't shining.

But closer to home, installing panels on residential houses hasn't been easy for many Canberrans.

In June, the ACT government said it would revise flawed overshadowing regulations that builders and home owners said were contributing to Canberra's housing affordability crisis and could add between $15,000 to $50,000 to the cost of building a home.

Australia-wide, almost 15 per cent of households have adopted solar to power their homes, according to recent figures from the Energy Supply Association of Australia.

Chief executive Simon Crowther said the company kept a "close eye on renewable energy trends".

He said the technology helped installers see prospective customers' roofs, delivering significant return on investment to the solar industry.