As these renewable options come on line it will help smooth out the supply meaning less storage needed.
"Australia arguably possesses the world’s largest wave energy resource, around 1,800 terawatt hours. Most of this is concentrated in the southern half of the continent, between Geraldton and Brisbane. To put this in context, Australia used 248 terawatt hours of electricity in 2013-14.
Waves aren’t the only renewable power source in our oceans. The daily movements of the tides shift vast amounts of water around the Australian coast, and technology for conversion of tidal energy to electricity is more mature than any wave converters."
https://theconversation.com/catchin...ralia-to-embrace-ocean-renewable-energy-66048
