<
https://reneweconomy.com.au/negative-demand-the-new-grid-reality-in-a-state-where-half-of-all-homes-have-rooftop-solar/>
"ElectraNet, the transmission company that runs the backbone to the grid in
South Australia, says the demand profile of the local grid has been
fundamentally altered by the massive uptake of rooftop solar.
The company say more than half of all homes in South Australia now have rooftop
solar, and it is now seeing events on the grid that it could barely imagine
just a few years ago, let alone witness.
Before 2022-23, ElectraNet says, South Australia had never experienced a day
when minimum demand had fallen below 100 megawatts. In fact, minimum demand
levels up to 2015 were usually more than 1,000 MW.
In 2022-23, there were three days when demand fell below 100 MW, but that
number jumped to 21 in 2023-24, and already in 2024-25 it has totalled 27 days.
And it’s not just happening on weekends, when demand and industrial activity is
usually low, it is also occurring on mild weekdays.
Even more remarkably, over the last six months, Electranet has reported eight
days when demand was negative and power flows were flowing back into its
transmission network from rooftop solar on distributed networks.
One of those occasions – on February 16 this year – occurred just four days
after the state experienced record high demand, highlighting the extraordinary
changes that can occur at rapid speed, and which underline the need for
flexible and fast responding technologies, such as battery storage and demand
response."
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
