The twin drivers of change are economic, arising from government actions that markedly increase the cost of energy, and community pressure for industry to be seen as a good corporate citizen.East (2010) reviewed postharvest energy usage of horticultural commodities and cites that in California, cooling and storage of fresh horticultural produce uses close to 1 billion kWh of energy which was 5.5% of the electricity used by agriculture in the state (Thompson and Singh, 2013)