By Sarah McFarlane 

LONDON -- Royal Dutch Shell PLC bet big on natural gas as the energy source of the future when it bought BG Group for $54 billion. Five years later, it appears the gas era won't last long.

Falling prices for wind and solar power, coupled with government and businesses' new green goals, are accelerating a shift to cleaner energy and leaving natural gas -- long seen by energy companies as a bridge between fossil fuels and renewables -- in the lurch. The fuel is also under growing scrutiny for methane leaks, leading some potential customers to skip gas and move ahead to lower-carbon alternatives.

That is a risk for Shell and rivals such as Exxon Mobil Corp. and Total SE, which also invested in gas, given that gas projects typically cost billions of dollars up front and take decades to recoup that investment.

Shell last month halved its outlook for global gas demand growth to 1% a year, and said demand for the fuel could peak as soon as the 2030s.

While burning gas emits less greenhouse gas than coal does, environmental gains are lost if there is a leakage of methane, the main component of natural gas. Methane is more potent than carbon dioxide in contributing to climate change and has become a target of environmentalists.

"If you look at the global gas industry, its role in the energy transition and in the world energy mix decades from now is up for grabs, " Maarten Wetselaar, who heads Shell's gas business, said at a conference last month, adding that more action to reduce methane leakage was needed.

Shell is using infrared cameras, lasers and satellites to detect methane leaks at production sites, during transportation and at power stations. It has also pushed for policies to reduce methane emissions from the oil-and-gas industry in the U.S. and Europe. Shell targets methane-emissions intensity below 0.2% on all its assets by 2025. Many energy companies don't have targets.

The company has also started selling carbon-neutral cargoes of liquefied-natural gas, in which emissions can be offset with carbon credits, and is spending millions of dollars on projects to capture and store carbon.

Shell said natural gas emits about half as many greenhouse gases and less than one-tenth of the air pollutants as coal does when it is used to generate electricity. The company added that it can still grow its gas business, with demand particularly strong in Asia, and that it will increase the fuel's share of its production to 55% in the next decade, from roughly equal with oil today.

However, Shell has already written down the value of some of its gas assets, including its Queensland Curtis project in Australia. The project, which it acquired in the BG deal, started in 2015 and has an expected lifespan of at least 20 years.

Fossil fuels are at risk in the energy transition and natural gas could theoretically be made redundant by technological developments, but for now it is still needed, said Irene Himona, an analyst at Société Générale. What matters to Shell, given its gas reserves, is what happens over the next 15 to 20 years, she added.

Moves to curb gas are gaining traction across the West. Several U.S. cities have banned gas in new buildings, while Ireland is considering prohibiting the construction of liquefied-natural gas import terminals. France last year blocked a deal to import gas from a U.S. seller, citing environmental concerns.

Big corporate buyers, meanwhile, are seeking to reduce carbon emissions and asking for green, not gas, power. For example, Amazon.com Inc. has pledged to power its operations with 100% renewable energy by 2025.

Some industries that Shell and others have targeted to switch to natural gas from oil-based fuels are now also looking to move directly to lower-carbon alternatives.

Shipping giant A.P. Moller-Maersk A/S explored liquefied-natural gas as a fuel option but was put off by methane concerns. Instead the company plans to launch the world's first container ship running on biofuel in two years.

"[Liquefied-natural gas] is a fossil fuel and it emits CO2 into the atmosphere and that's the problem we're trying to solve, so picking another fossil fuel as a starting point, we don't like that idea," said Morten Bo Christiansen, Maersk's head of decarbonization.

Maersk estimates that natural gas reduces carbon emissions from a ship's chimney by around 25%, but those reductions can be offset by methane leakages in the supply chain or on the vessel.

"The analysis that we have seen on this are actually suggesting that even at best this solution is as bad as the problem," said Mr. Christiansen.

One of Europe's largest trucking companies by fleet size, Girteka Logistics UAB, has decided against expanding its small number of liquefied-natural gas trucks partly because of concerns over methane, focusing on vegetable oil instead. The decision followed Daimler AG's move to stop developing natural-gas-powered trucks in 2019.

The pressure on natural gas was apparent earlier this year when U.S. special envoy for climate John Kerry appeared at odds with Shell Chief Executive Ben van Beurden over the future role of the fuel during a virtual Davos panel.

Mr. van Beurden defended the role of gas in the transition to lower-carbon energy, but Mr. Kerry said he favored minimizing its use.

"The problem with gas is if we build out a huge infrastructure for gas and continue to use it as a bridge fuel when we haven't really exhausted the other possibilities, we're going to be stuck with stranded assets," Mr. Kerry said, referring to the risk that 20-year gas projects might not be needed.

Write to Sarah McFarlane at sarah.mcfarlane@wsj.com

 

(END) Dow Jones Newswires

March 27, 2021 05:44 ET (09:44 GMT)

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