It's the rooftop accessory becoming a must-have across the country, but as the take up of renewable energy rapidly increases, so too do problems on the old power grids.
That's Dr Kerry Schott, Chair of the Energy Security Board.
She says the board's annual health check of the electricity grid has found the Australian Energy Market Operator had to intervene 75 times in the last financial year to ensure the system wasn't overloaded, or under supplied.
Roof top solar panels now account for five percent of production in the national energy market, creating voltage control problems in cities like Adelaide, Brisbane and Perth where 20 per cent of homes have rooftop solar.
Dr Glenn Platt is Research Director of Energy at the CSIRO.
"You can certainly have a secure, reliable energy system based on really really high levels of renewable energy, the challenge is just that the system we have today isn't really designed to have so much renewables,” Dr Platt said.
Nationally, around 16 per cent of electricity consumed in 2018-19 was generated by wind and solar.
That's expected to reach 40 per cent by 2030.
Energy sectors are calling for greater federal leadership on the management of renewable energy saying the technology already exists to support an increased use of green electricity, what's needed is a national infrastructure to manage it.
The Energy Security Board's report also shows little improvement in affordability.
Despite small national decreases, low income earners are still spending eight to 10 per cent of the household budget on power.
Energy Minister Angus Taylor says the government's investment in the hydrogen industry will help.
The Energy Security Board says the Snowy 2.0 project, due for completion in 2025, will solve renewable energy problems.
But until then, security and reliability issues could continue.
