[energy123]

Australia's CSIRO studied this for Australia, renewables were half the cost of nuclear, factoring in storage and transmission for both renewables and nuclear (yes, nuclear also needs storage because energy demand varies with time). Australia is uniquely endowed with sun and land, so other countries/regions may arrive at different results.

[blitzar]

If you live in Australia, have a house and roof, you're a bloody idiot if you didnt install solar.

[bot403]

You don't even need a roof. If you have enough land then a ground mount system is more convenient and easier to maintain.

[pibaker]

I think by having a roof GP meant lives in a house instead of an apartment. If you don't have your own roof you probably don't have land either.

[leonidasrup]

Australia is also well endowed with coal and no carbon pricing, so for Australia the cheapest form of electricity production is a mix of solar + battery + coal.