Accommodating high levels of variable generation
Additionally, there are potential benefits from energy storage other than operational stability or maximizing the k Wh of renewable resources.Because renewable sources like wind and solar may not be available on a consistent and predictable basis, the utility must construct and operate conventional power plants to supplement the renewable source when necessary.
These include: There are several fundamental characteristics of energy storage technologies that define their suitability for addressing electric grid problems, not including cost.
As reinforced throughout a recent report supported by Sandia National Laboratories on behalf of the U. Department of Energy’s (DOE) Office of Electricity Delivery and Energy Reliability and the Office of Energy Efficiency and Renewable Energy Solar Technologies Program, energy storage is a viable solution to our renewable energy needs. There is general agreement that at low levels of variable generation, there will be minimal disruption to utility operations and negligible curtailment of the renewable resource.
“Investment in energy storage is essential for keeping pace with the increasing demands for electricity arising from continued growth in U. productivity, shifts and continued expansion of national cultural imperatives (e.g., the distributed grid and electric vehicles), and the projected increase in renewable energy sources……”“One of the most promising approaches to addressing the growing limitations of the electric grid and the increasing demand for renewable energy is to incorporate stationary energy storage technologies into the U. As the renewable contribution increases, the number of variables – and goals - that must be considered expands, and the predictions become less consistent.
Much of this development is at the ‘demonstration’ phase with several projects funded through the American Recovery and Reinvestment Act (ARRA).
Familiar consumer (albeit advanced) battery technology such as lead-acid, nickel-metal hydride, nickel-cadmium and lithium-ion are being supplemented by an array of additional battery designs.