The gas provider joins about 100 investors in the natural gas technology products company.
Southern California Gas, a regional subsidiary of New York-listed Sempra Energy, has invested $500,000 in US-based natural gas technology products company Tecogen.
Tecogen supplies low emission gas-powered heating and air conditioning systems for industrial and commercial use and received more than $1.5m in grants from the California Energy Commission in 2009.
Hal Snyder, vice-president of customer solutions at Southern California Gas, said: "Natural gas plays a vital role in California’s sustainable and low-emission energy future. Innovative research projects and equity…
