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Sparks

Flood-Proofing NYC’s Subways Means Closing Them

Even in the best case scenario, storms will keep closing New York City’s public transportation system.

A subway map.
Heatmap Illustration/Getty Images

New York City’s subway service was hit hard by the rains and flooding that hit the city today: The B, G, W trains were all suspended, while every other line either saw delays or partial suspensions. This is, as the Wall Street Journal's Ted Mann tweeted (or whatever we’re calling it these days), a sign of how vulnerable the subway system still is to flooding. But it’s also worth pointing out that the MTA’s best-case scenario for a subway system that’s been hardened against extreme rain and flooding would force many of the city’s underground stations to close anyway. At some level, if the MTA’s plans ever come to fruition, service disruptions would be a sign that things are working as intended.

A bit of context: After Superstorm Sandy inundated the city in 2012, the MTA asked the engineering and design consultancy Arup to develop a barrier that could close off the entrances to subway stations during extreme rain, preventing water from coming down the stairs and flooding tunnels. Arup and manufacturing firm ILC Dover came up with a system they called Flexgate, which is essentially a fabric cover that can be rolled out to cover ground-level entrances and stairwells. It’s been rated to withstand flooding from Category 2 hurricanes; in 2019, The Verge’s Justine Calma wrote about how the MTA intentionally flooded a subway entrance in Brooklyn for a few hours to test the system out.

Of course, the problem with gates that roll out across station entrances is that ... you can’t really use those stations. This is the problem with hardening subway systems against flooding generally: The Flexgate is one of many solutions the MTA has been testing post-Sandy, but protecting stations and tunnels from water does, inevitably, mean some level of service disruption.

But hey, at least our feet will be dry when the trains start running again.

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Sparks

Koloma Strikes New Hydrogen Exploration Deal in the Philippines

The deal, shared exclusively with Heatmap, is the startup’s third in the oil-importing country.

A Koloma worker.
Heatmap Illustration/Koloma, Getty Images

Hydrogen fuel comes in myriad forms. There’s green hydrogen, which is extracted from water molecules using zero-carbon electricity. There’s blue hydrogen, derived from methane and scrubbed clean by carbon capture. And then there’s white hydrogen. Otherwise known as natural or geologic hydrogen, this type of hydrogen comes directly from naturally occurring deposits in the earth, can accumulate in considerable quantities and concentrations, and is highly energy-efficient to extract compared to manufacturing pathways such as electrolyzers and steam methane reforming.

It’s a seductive promise, but finding deposits with enough hydrogen to make the economics of exploration work is difficult. That’s where Koloma comes in. The startup uses a bespoke subsurface data set, which its founders developed over 20-plus years, to flag the areas most likely to hold sufficient hydrogen, after which they can extract it for power and derivative fuels.

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Yellow
Sparks

Data Centers Will Use Enough Electricity to Power Every U.S. Household by 2035

The latest forecast from BloombergNEF raises its estimate for AI electricity demand by 83%.

A data center and power lines.
Heatmap Illustration/Getty Images

Energy analysts at BloombergNEF predicted last year that U.S. data center electricity demand would reach 106 gigawatts within the next decade. In its latest outlook, released Tuesday, the group increased its forecast by 83%, to 194 gigawatts — enough to light up 150 million homes, or roughly every single household in the country today.

Even that may be a conservative estimate. If data center developers were to max out the total number of the high-powered chips used to train and operate AI models forecast to be delivered by 2035, electricity demand would reach 229 gigawatts.

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Green
Sparks

Microsoft Sustainability Chief Hounded by Protestors at Seattle Climate Week

“Microsoft, you can’t hide, we can see your dirty side!”

Melanie Nakagawa.
Heatmap Illustration/Getty Images, Katie Brigham

Protestors interrupted one of the final sessions of PNW Climate Week — a conference that brings together climate leaders across Washington, Oregon, and British Columbia — objecting to Microsoft’s rising carbon emissions from data centers and partnerships with oil and gas companies. The company’s Chief Sustainability Officer Melanie Nakagawa was having a one on one conversation with GeekWire climate reporter Lisa Stiffler at Seattle’s City Hall when protestors carrying signs reading “Microsoft’s AI pollutes” and other slogans began shouting from the audience.

I was there, having just moderated the prior panel on how to finance Washington’s clean energy ambitions. Early on there were some rumblings in the crowd from up front. “Climate leaders don’t build gas pipelines in Moses Lake,” was the first objection I heard clearly. It came shortly after Nakagawa kicked off the conversation by highlighting Microsoft’s partnership with sustainable aviation fuel startup Twelve, which recently opened its first commercial-scale SAF plant in Moses Lake, Washington. The tech giant has supported the project through a strategic investment from its Climate Innovation Fund, as well as an offtake agreement for the fuel that will help offset its emissions from employee travel.

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