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Volts

Volts

Written by: David Roberts
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Volts is a podcast about leaving fossil fuels behind. I've been reporting on and explaining clean-energy topics for almost 20 years, and I love talking to politicians, analysts, innovators, and activists about the latest progress in the world's most important fight. (Volts is entirely subscriber-supported. Sign up!)

www.volts.wtfDavid Roberts
Political Science Politics & Government
Episodes
  • Can distributed energy work around American utilities?
    Oct 21 2026
    This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe

    American homes are filling up with batteries, EVs, and smart thermostats that could be coordinated to make the grid cheaper and more reliable — but almost none of them are. To understand why, it helps to watch what happens when the company best in the world at this tries to do it here. In Britain, Octopus Energy has built a giant virtual power plant out of its customers' devices. In the US, it has spent six years running into walls. Now it’s bought Uplight, which runs customer programs for 85 utilities. I talked with Nick Chaset, who runs both, about what's in the way and whether distributed energy can ever scale with US utilities … the way they are.

    Chapters:

    00:00 – Introduction

    02:02 – Octopus’s past year and the Uplight investment

    05:18 – What makes the UK market work for Octopus

    11:12 – Texas: fast growth, flattened volatility

    14:57 – Will flexibility put itself out of business?

    19:16 – Why Octopus stays out of Pennsylvania and New York

    22:17 – Does residential retail competition have a future?

    24:41 – Why utility programs trail Octopus on participation

    32:17 – The demand stack and what planners can count on

    39:11 – Kraken, Uplight and the overlap

    46:04 – Consumer protection and the aggregator model

    51:17 – Data centers and the social license to operate

    55:11 – Do we need dynamic pricing?

    58:30 – Five years out

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    1 hr and 3 mins
  • What’s up with Denmark?
    Oct 16 2026
    This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe

    Denmark gets a large share of its power from wind and other renewables and has cut its emissions roughly in half since 1990, but independent analysts doubt it will hit its 70 percent target for 2030. Kristian Jensen, CEO of Green Power Denmark and a former Danish minister of taxation, foreign affairs, and finance, argues the next stage is electrifying how Denmark uses energy: heat, transport, and industry. I talk with him about district heating and heat pumps, EVs and vehicle-to-grid, municipally owned grid companies and hourly power prices, biomass, carbon capture, power-to-X, solar’s “fields of iron” backlash, a grid oversubscribed with data center requests (an October 1 agreement has since put most data centers at the back of the queue), and whether the country’s political consensus will hold.

    Chapters

    00:00 – Introduction: Denmark and industrial symbiosis

    02:44 – Is the 70% target for 2030 out of reach?

    06:24 – Carbon capture and storage, and the peatlands lag

    09:57 – Why electrification has lagged: biomass and wood pellets

    14:45 – Few batteries, many interconnectors

    16:48 – Data centers and the grid-connection prioritization bill

    21:34 – Municipally owned grid companies

    24:32 – Smart meters, hourly prices, and thermal batteries

    28:40 – The solar backlash and local ownership

    35:04 – Agrivoltaics and biodiversity

    37:24 – District heating: heat pumps, geothermal, and finance

    43:24 – The EV transition and vehicle-to-grid

    47:45 – Road pricing and fiscal room

    50:07 – Power-to-X and eSAF

    54:21 – Can Denmark build enough clean power?

    57:12 – Will the political consensus hold?

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    1 hr and 3 mins
  • Checking back in with Greenlight America
    Oct 14 2026
    This is a public episode. If you'd like to discuss this with other subscribers or get access to bonus episodes, visit www.volts.wtf/subscribe

    On this episode, recorded live at Climate Week NYC, I talk with Matt Traldi. He’s the founder and CEO of Greenlight America, which finds the local meetings where clean energy’s fate is being decided and recruits supporters to attend. Traldi argues that siting and permitting approvals turn on who shows up, and that local partners, conservative groups included, outperform outside advocates. We discuss how to measure impact, recent wins and losses, blue-state resistance, data center backlash, and Greenlight’s growth.

    Chapters:

    00:00 – Introduction

    02:09 – What Greenlight does and why Matt started it

    04:41 – How Greenlight finds the decisions that matter

    07:27 – Growth, and the tax credit deadline sprint

    13:38 – Who shows up to local hearings

    19:39 – Winning in conservative communities

    22:35 – Bodies in the room, measuring impact, and win rates

    27:46 – Losses, wins, and “there is no bag”

    32:44 – Blue-state obstacles and organized opposition

    36:31 – When data center backlash spills over onto clean energy

    42:31 – Which projects Greenlight won’t back

    45:38 – Lessons from housing and growing an organization

    50:17 – Audience Q&A: disinformation and state permitting reform

    54:39 – Audience Q&A: developers and elections

    59:30 – Audience Q&A: funding local groups and designing community input

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    1 hr and 7 mins
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