Apr 20, 2022 · 22m · green-blueprint
How bitcoin is keeping zombie power plants alive
Brian Kahn · 10m spoken Stephen Lacey · 8m spoken Plant Tour Guide · 10s spoken News Anchor · 8s spoken Local Resident · 7s spoken
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gold bands on the timeline = statements, start to end. Hover to read, click to jump. CC turns on captions
Host Stephen Lacey and climate journalist Brian Kahn investigate how energy-intensive Bitcoin mining is resurrecting defunct fossil fuel plants across the United States. They explore the local ecological fallout, the mechanics of Proof of Work, and the regulatory challenges threatening climate goals.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. How this is scored →
The hosts as informed peer 2.4 Guest teaching 4.6 Guest disagreement 0.0 The hosts pushing back 0.1
speaking balance: gold is the hosts, purple is the guest (3 minute bins)
Sharpest disagreement ▶ 21:28 Playful banter on divesting CryptoKitties
The interview is uniformly collegial, with this lighthearted exchange being the closest instance of comedic disagreement when Kahn tells Lacey he must let go of his CryptoKitties.
Hardest push from the hosts ▶ 17:49 Host questions why miners refuse proof of stakeLacey presses Kahn directly on why miners would not immediately adopt proof of stake if it offers a 99 percent energy reduction.
Biggest teaching moment ▶ 16:26 Capture the flag analogy for consensus mechanismsKahn clearly explains the technical difference between proof of work and proof of stake using an intuitive capture-the-flag metaphor.
The host holds their own ▶ 19:56 Host articulates grid dynamics and coal plant economicsLacey demonstrates deep understanding of power sector economics by summarizing how crypto mining threatens to reverse a decade of coal retirements.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | The hosts as informed peer | Guest teaching | Guest disagreement | The hosts pushing back | Why |
|---|---|---|---|---|---|---|
| Reassessing the Environmental Toll of Bitcoin | 0 | 0 | 0 | 0 | Segment 1 is an introductory solo monologue by host Stephen Lacey framing the episode's themes and citing historical data center efficiency statistics. Per instructions for monologue segments, host and guest interaction scores are set to 0. | |
| Reviving Seneca Lake Shuttered Power Plant | 3 | 5 | 0 | 0 | Lacey guides the narrative by asking Kahn about his reporting on the Greenidge power plant. Kahn explains the backstory of the retired coal plant converting to gas and crypto mining. | |
| The Energy Intensive Mechanics of Bitcoin Mining | 2 | 5 | 0 | 0 | Lacey prompts Kahn to break down why Bitcoin mining consumes so much computing power. Kahn explains the competitive race among mining rigs solving mathematical algorithms. | |
| Upstate New York as an Industrial Crypto Hub | 3 | 5 | 0 | 0 | Lacey asks what differentiates crypto energy demand from standard internet and cloud data centers. Kahn explains the distinction between centralized corporate sustainability goals and decentralized profit-maximizing crypto miners. | |
| Zombie Plants Local Impacts and Community Opposition | 2 | 6 | 0 | 0 | Kahn educates Lacey on behind-the-meter economics, revealing that Greenidge makes roughly eight times more revenue from mining than from grid power. He also details local community pushback in the Finger Lakes. | |
| Explaining Proof of Work Versus Proof of Stake | 3 | 6 | 0 | 0 | Lacey challenges Kahn to provide a plain-language explanation of proof of work versus proof of stake. Kahn delivers a capture-the-flag analogy that Lacey applauds. | |
| Policy Hurdles and the Threat to Climate Goals | 4 | 5 | 0 | 1 | Lacey demonstrates domain knowledge regarding coal retirements and state climate targets, probing Kahn on whether zombie plants create a template to evade decarbonization goals. |
Statements from this episode (9)
Lacey: Bitcoin mining consumes 0.5% of world's electricity with double-digit annual growth
“Bitcoin mining today uses a half percent of the world's electricity, and every year, as more shipping containers and warehouses full of high-powered computers are deployed to unlock more Bitcoin, energy use grows by double digits.”
Lacey: Data centers use 1% of global electricity despite 15x traffic growth
“They use one percent of electricity globally, and that number has basically stayed the same, even as internet traffic grew fifteenfold since 2010.”
Lacey: Mining one Bitcoin uses 8 to 13 years of household power
“One mined Bitcoin could use anywhere from eight to 13 years worth of household electricity.”
Lacey: A single Bitcoin transaction can power a US home for six weeks
“And if you want to trade that Bitcoin or use it to buy something, no matter how small, that single transaction could use enough energy to power an American home for six weeks.”
Lacey: Struggling US Fossil Fuel Plants Get Lifeline From Bitcoin Miners
“What Brian saw in Lake Seneca is unfolding across the U.S. Coal and gas power plants that are under pressure in Ohio, Montana, Pennsylvania, and even elsewhere in New York are now getting an economic lifeline thanks to partnerships with Bitcoin miners.”
Kahn: Decentralized mining incentivizes cheap fossil fuels over Big Tech net-zero goals
“When it comes to these big tech companies, like Google, for example, like they want to get to net zero. They want to get to a hundred percent renewables. That is like a centralized decision that Google is making for crypto and for cryptocurrency mining in part…”
Kahn: Greenidge earns 8x more mining Bitcoin than supplying grid power
“And the majority of the money they're making is not when they're putting power onto the grid, when they're, where they're making the most money is what's going on behind the grid. And you know, their revenue disclosures It was, you know, essentially almost a, …”
Kahn: Proof of stake consensus reduces crypto energy consumption by 99%
“I mean, it's literally a 99% reduction. That's the, or those are the best estimates.”
Kahn: Greenidge provides a blueprint for private equity to resurrect fossil plants
“It's absolutely possible that those plants could come back just like Greenwich did. And that, I think, is the biggest concern here is that if you are a Bitcoin mining company, if you are a private equity firm, if you're a venture capitalist, You can be looking…”