Electric demand response has helped grid operators balance electricity supply and demand, typically at or near peak demand conditions. In contrast, gas demand response (DR), i.e., reducing gas consumption during periods of peak gas demand to alleviate constraints in the gas distribution system that prevent addition of new gas customers or require costly system upgrades, has only recently come under consideration. Over the last year, National Grid has participated in two gas DR pilots, one in New York and the other one in Massachusetts, that compensate customers for decreasing their gas consumption between 6-9AM on the coldest 3-6 days of the year. Intriguingly, the pilots have pursued different approaches to reduce gas consumption, i.e., the New York pilot used utility-based direct-load control (DLC) of large gas-consuming equipment, while in the Massachusetts customers independently manage their gas consumption to achieve a specified reduction in gas consumption relative to a per-determined baseline. This presentation will discuss key findings from the pilots, including: the pros and cons of and customer responses to the two gas DR approaches; levels of gas DR required to obviate the need for system hardening; what gas curtailment strategies and end uses customers are willing to implement; potential gas DR baselines, and high-resolution gas metering solutions.
Mr. Kurt Roth, Ph.D.
Director, Building Energy Systems
Frauhofer Ctr. for Sustainable Energy Systems CSE
Dr. Kurt Roth leads Energy Systems applied R&D at Fraunhofer USA. The team collaborates with industry on applied research to develop, analyze, test, demonstrate, and evaluate building technologies and technologies that enable integration of large quantities of renewable power with the electric grid. Currently, Dr. Roth is a Co-PI for a DOE SunShot demonstration project to optimize the operation of MW-scale PV, energy storage, and facility load management to enable the electric grid to reliably integrate high levels of PV, as well as a DOE Building America project to use communicating thermostat data to perform remote home performance assessments. He has also led several studies to assess the energy savings and commercialization potentials of building technologies, including HVAC, building controls and diagnostics, and information (IT) technologies, and analyses to characterize building energy consumption by building energy end uses. Dr. Roth has presented at numerous conferences and meetings, and authored more than sixty "Emerging Technology" articles for the ASHRAE Journal. Dr. Roth received his B.S., M.S., and Ph.D. degrees from the Massachusetts Institute of Technology (MIT), all in mechanical engineering. He is a member of the American Society of Heating, Refrigeration, and Air-Conditioning Engineers (ASHRAE), Northeast Sustainable Energy Association (NESEA), and Sigma Xi.