Hundreds of solar installers are expected at a rally at Victoria’s Parliament House on Thursday over problems with the state government’s energy rebate program.

Businesses say introduction of the scheme has caused a slowdown in installations.

The program was designed to bring the number of homes in Victoria with solar panels to 1 million within a decade

In the lead-up to the 2018 state election, Premier Daniel Andrews and Environment Minister Lily D’Ambrosio announced a subsidised solar program to install energy panels on 650,000 homes.

Home owners excited at the $2225 subsidy per solar system flooded the program, with installations jumping from 3000 a month statewide to about 7000.