Battery Storage
Battery storage is becoming an increasingly attractive and more cost-effective way of storing energy at scales ranging from an individual house up to a grid scale, indeed there is a very large grid storage battery farm at Miney.
It could be used in combination with wind/solar/hydro generation to store excess energy (for example on a sunny day) to supply power when there is less locally produced power, for example at night. Battery storage can also be used to reduce costs by charging on low cost / low-CO2 off-peak electricity for use during the day when electricity is typically 3x more expensive and higher CO2.
It’s likely any solar farm we’d install would include battery storage.