In its quest to decarbonize its energy, California is heading offshore. Besides being green, tapping the winds over the Pacific Ocean offers an additional benefit: Good timing. For more read California’s Solar Problem Could Be Solved by Floating Wind Farms.
- While current solar capacity in California provides a deluge of power supply in the middle of the day, the peak demand for power is in the evening, when solar isn’t as reliable. This is especially troubling during extreme weather conditions.
- Wind turbines off the coast capture steadier ocean winds than those on land, sometimes 50% more, and it usually peaks at night, making it a useful complement to solar power during the day and reducing the need to turn to gas-fired plants and battery storage
- Matching supply more precisely with demand is an essential, but often overlooked, element of the energy transition. Traditional power supply relies on having dispatchable generators, usually burning fossil fuels, on call to match fluctuating demand.
Path to 100% Perspective
California can reach its goal of serving 100% of retail load with renewable energy. However, this cannot be achieved with its current portfolio of resources. The rolling blackouts in summer 2020 show that California needs additional resources to supplement the tools already in place. More specifically, California needs new resources that complement the wind, solar, and hydro needed for a shift to a 100% renewable electricity system. Slow ramping, long start, baseload resources must be replaced by faster, more flexible resources that are capable of running on sustainable fuels. Sustainable fuels produced by excess wind and solar energy, plus storage resources, can enable California to cleanly and reliably shift energy from low-net loads to high-net loads.