Solar energy installer SolarCity has announced it is now taking orders for installations in the US state of Nevada.

The company said free solar panel installations are now available in Las Vegas, offering solar electricity for less than US$30 a month.

SolarCity claimed this is less than utility prices and home owners can access to its design and installation services as well as financing and insurance with monitoring and a performance guarantee.

The company is the largest installer in the US and leases solar panels to home owners, so customers only pay for clean cheap electricty.

The services will be made available to utility, NV Energy's customers first. Later on in the year SolarCity will take part in NV Energy's Solar Generations Program – an incentive programme for installing solar, which is reopening in August.

Initial orders will be taken from customers in the areas of greater Las Vegas Area, including the cities of Las Vegas, North Las Vegas, Spring Valley, Winchester, Paradise, Henderson and Boulder City.

Consultations will be offered on a first come first serve basis, with the first installations expected to begin in October.

SolarCity first announced it was expanding operations to Nevada, in March 2013, and has now employed 400 people in the state, with plans to hire 400 more within the next year.

Las Vegas is located within some of the best direct solar radiance spots in the US. According to the US Solar Energy Industries Association (SEIA), in Nevada, the average price for installing solar has fallen 38% in the last year.

In 2013, US$108 million was invested in Nevada to install solar for home, business and utility use, according to the SEIA.

The SEIA also estimates the 450MW of solar installed in Nevada ranks the state sixth for installed capacity in the US, enough solar power for 64,300 homes.

Baird, capital asset manager’s Baird Equity Research released analyses today that predicts SolarCity will have more than 100MW in bookings the first quarter this year, and 110MW for the second, and predicts the financial model of SolarCity to continue to succeed.