Load as a Resource
Spinning Reserve From Responsive Load
Responsive load is the most underutilized reliability resource available to the power system today. It is currently not used at all to provide spinning reserve. Historically there were good reasons for this, but recent technological advances in communications and controls have provided new capabilities and eliminated many of the old obstacles.
CERTS researchers at Oak Ridge National Laboratory are working with industry to demonstrate the enormous potential for provision of spinning reserves through advanced load control technologies. Air conditioning represents an especially promising end-use resource for providing spinning reserve because air conditioning is highly correlated with electric system peak demands and provision of spinning reserve is compatible with control of air conditioning through conventional demand response or load management programs.
The performance of these end-uses can, in fact, exceed the performance of an equivalent amount of generation providing spin since load can be dropped instantaneously (generation must ramp up more slowly to avoid damaging equipment). In addition, from a statistical point of view, the large numbers of end use devices means they ought to be inherently more reliable when called to provide spin than generation.
- Spinning Reserve From Responsive Loads
(292 KB PDF, 41 pp)
Oak Ridge National Laboratory