This document gives various statistics and projections regarding "demand-side management (DSM)," "distributed generation (DG)," "customer side generation," "energy storage," etc.
Demand side management is about timing and level of electricity demand, and it encompasses energy and load-shape modifying activities. Spending on demand-side programs, incurred by utilities, have increased. As a result peak load reduction has increased in recent years. According to Zpryme's estimation, DSM investments will increase at an annual rate of 9%-12% over the next five years. Consumer education will be very important in getting the customers involved in these programs.
Smart grid technologies are expected to work in concert with policies facilitating DG interconnection. The DG capacity increase is projected to be 1.9 GW in 2009 to 6.8 GW in 2035. To encourage home-mounted customer side generation, feed-in tariffs, net metering or cash rebates have been utilized. This resulted in a jump, in residential solar capacity, only within few years from 35 MW nationwide to 197 MW, only in California. Zpryme expects growth in this side at an explosive annual average rate of 40% - 50% over the next few years. Energy storage is another important aspect of smart grid. Currently, only 54 MW of total 23,251 is stored with Lithium ion batteries. But recent and expected investments have begun to change the situation.
This information was submitted by Jeremy Laundergan, Director, Utility Services Consulting, EnerNex, firstname.lastname@example.org on 08/31/2011.