Load curtailment programs involve an agreement between an electric power customer and a utility or power provider, whereby the customer agrees to meet a portion (or all) of its power needs on its own during periods of high utility demand in return for special rates, discounts, or other concessions from the utility. Under such programs, the power customer typically agrees to drop portions of their load off the grid — at the utility’s request and with advance notice — leaving them to meet their own power needs.
In response to a notice from the utility, the customer powers up its own generators, and transfers all loads (either all at once or gradually through paralleling with the utility) to the generators. This reduces the total power demand on the utility, allowing it to better meet unusually high demand while avoiding potential brownouts or blackouts.
Once the period of high power demand, or the time period agreed upon between the customer and utility has passed, the customer is free to transfer all loads back to the utility.
Russelectric® power control systems can be designed to accommodate load curtailment programs using closed-transition transfer, utility paralleling, and/or soft loading control schemes.