Price elastic power consumption as reserve power - a demonstration project in the gardening sector

Danish greenhouses have a relatively high level of electricity consumption for grow light. Part of the electricity consumption is flexible, and the main purpose of the project was to find out if the grow light of the greenhouses is fit for the market for reserve power. The greenhouses' total potential for delivery of upgrading services was up to 80 MW for a short period in spring 2007. Four greenhouses participated in practise on the regulating power market with a flexible consumption. The upscaling of the demonstration was not carried through because e.g. the price development on the regulating power market reduced the gain considerably and the investments for installation of on-line meterings at the greenhouses did not measure up with the earnings. (Energy 11)