The Solana Center for Environmental Innovation will be hosting two workshops this December. As part of their Green Living Workshop series they will host an hour-long workshop on Residential Solar Energy on Sunday, Dec. 7 from 4 to 5 p.m. The workshop will be taught by Mike Davis, Founder/General Manager of San Diego County Solar. The center will also host a free composting workshop at the Ocean Knoll Educational Farm in Encinitas on Dec. 20 from 10 a.m. to 12 p.m. For more information about the workshops or to register visit www.solanacenter.org.