Solar panel retailers will have to sign up to a code of conduct to prevent dodgy operators joining a state government scheme to provide panels to 700,000 households.

The code of conduct will set safety and consumer protection requirements for large and small solar retailers.

Solar panel retailers will have to sign a code of conduct to participate in a state government scheme to put panels on Victorian households. Credit:Glenn Hunt

Before the November election, the Andrews government promised to install half-price solar panels on the roofs of eligible Victorian households.

It also promised solar hot water rebates and batteries for some households that were ineligible for the half-price panels.