Rethinking Future Investments in Natural Gas Infrastructure

Cities and utilities across the United States are starting to reject natural gas — and not just for environmental reasons. Increasingly, the compelling economics of clean energy alternatives play a major role in these decisions.
San Jose, the tenth largest city in the country, recently joined a string of cities banning gas utility connections for new homes and buildings. Cities in Massachusetts, Washington, and Vermont could follow suit. Utilities in Florida and California recently made similar decisions to move away from gas in favor of renewable energy.
Even in Indiana, whose electricity generation is dominated by coal, utility regulators rejected a proposed new gas plant, citing “the potential

Cities and utilities across the United States are starting to reject natural gas — and not just for environmental reasons. Increasingly, the compelling economics of clean energy alternatives play a major role in these decisions.
San Jose, the tenth largest city in the country, recently joined a string of cities banning gas utility connections for new homes and buildings. Cities in Massachusetts, Washington, and Vermont could follow suit. Utilities in Florida and California recently made similar decisions to move away from gas in favor of renewable energy.
Even in Indiana, whose electricity generation is dominated by coal, utility regulators rejected a proposed new gas plant, citing “the potential risk that customers could sometime in the future be saddled with an uneconomic investment” if the plant was built. And in Minnesota, utility regulators denieda proposal for a utility to buy an existing gas plant, citing risk that the plant would close for economic reasons much earlier than expected.
Far from imposing an environmental agenda on resource investment decisions, regulators are in fact following the lead of utilities around the country. In states as diverse as Michigan, Colorado, Indiana, Oregon, North Carolina, and more, utilities are finding that there are lower-cost and lower-risk investment strategies than continuing to rely on new gas plants.
This may seem like an abrupt change. After all, as recently as a few years ago, gas was widely touted as the “bridge” from a coal-powered past to a clean energy future. It seemed like a safe bet. But things have changed dramatically in that time, triggering a need to urgently rethink any future investments in gas infrastructure. 
Stunning declines in the cost of wind and solar power and grid-scale batteries are at the forefront of this seismic shift. New research from Rocky Mountain Institute, our organization, analyzed proposed gas plants across the U.S. and found that in 90 percent of cases, it would be cheaper and just as reliable to build new wind, solar, and storage than to proceed with gas.

The economic picture is similarly grim for interstate gas pipelines; as demand falls from power plants, so too will the utilization of pipelines across the country, leaving utility customers responsible for paying them off for years to come.
Just as important, there is emerging evidence that to meet international climate targets, the U.S. cannot afford to lock in future carbon emissions by investing in gas or other fossil fuel infrastructure. Recent growth in carbon emissions from the electricity grid and buildings has been driven mainly by tens of billions of dollars in gas infrastructure investment over the past decade — we are currently heading in the wrong direction and need to reverse course.
Carbon emissions from gas power plants rose 59 percent from 2005 to 2017, but that’s only part of the problem. From oil and gas wellheads to homes and buildings, leakage of methane, a highly potent greenhouse gas, is far worse than previously thought. In fact, recent research found that methane leaks in major U.S. cities may be twice as big as official government estimates.

Doubling down on new gas power plants, pipelines, and appliances will lock in future carbon emissions and methane leakage and make it near-impossible to reach city- and state-level climate targets.
Nonetheless, the rush to gas continues. Roughly 177 gas power plants are currently being proposed in the U.S., according to a recent USA Today analysis. More than $30 billion worth of new gas pipelines are proposed or under construction all over the country and, once built, they will last decades. So while the gas industry adds one new retail customer every minute, these same customers will end up bearing the brunt of gas infrastructure investments for decades to come.
The good news is that we have, in fact, already reached the end of the natural gas “bridge.” Experience from around the country demonstrates how wind, solar, and batteries can beat out gas right now, purely based on economics. All-electric new homes are now cheaper than buildings with gas in most of the country, and avoid the health and safety risks associated with gas infrastructure.
Gas may have been a necessity a short time ago, but in today’s market, that’s no longer the case. Policymakers, regulators, and investors would be wise to see the writing on the wall: The gas bubble is about to burst, and they won’t want to be caught with billions of dollars in sunk infrastructure costs when it does.

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Bruce Nilles is a managing director and Mark Dyson is a principal at Rocky Mountain Institute.

Enclosures

  1. ^ (greentechmedia.com)

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