The electricity we use at home, or business, could not be consistent and reliable without background grid services. Strategies for maintaining grid-stability include holding 60 hertz frequency in the U.S., balancing demand and supply,, and providing consistent voltage.
This harmony was previously achieved by bringing peaking fossil-fuel generating units on- and off-line. Solar, wind, and large battery farms have begun assisting with this task. However, skeptics have long challenged renewable’s potential for maintaining grid stability entirely on its own.
Maintaining More Grid Stability with Renewables
Australia is pressing ahead with large-scale renewable energy, with the Australian Energy Market Operator in overall control. The agency’s latest report reveals batteries held 50% of the frequency and ancillary services market in Quarter 4 of 2023. This was up from 38% the previous year.
Renew Economy keeps a watchful eye on Australia’s transition towards a carbon-free society. Its writer attributes the transformation of the Australian frequency and ancillary services market to two factors:
- The speed and versatility of evolving battery storage technology.
- The fact that nothing matches a battery’s quick and smart response.
However, there’s a third factor that is sometimes missing in more electrically-conservative economies. There’s been a flurry of new commercial battery storage projects coming online in Australia. With more in the pipeline, this is set to increase renewable’s participation in the frequency and ancillary services market further.
Is This the End of Fossil Fuel Generation?
It is far too early in the transition to know if we will ever reach that point. However, Australia’s success is proof we are moving in the right direction globally. This readjustment is enabling grids to react more smoothly, and accurately to fluctuating consumer demand.
One of the challenges of our fossil fuel past has been that bringing more nuclear, coal, hydro and gas online produces large step-changes in supply. Whereas, with smart control over batteries, utilities can make smaller adjustments in an instant that fine-tune supply immediately.
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