Southern California natural gas is expected to grow by 1.5 percent annually, or about 545 million cubic feet, according to the U.S. Energy Information Administration.

    The agency expects this increase to account for a smaller portion of the overall increase in natural gas consumption over the next five years.

    California will need to increase natural gas production by 1 million to 565 million cubic yards per year to meet its current growth rates, according a memo from the State’s Department of Water Resources.

    Natural gas has been one of the most reliable sources of electricity for California.

    In 2016, the state produced more than 1.8 million megawatts of electricity, with the highest output coming from the state’s electric grid.

    This article originally appeared on Business Insider.

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