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Posts by WattTime.Org

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How to use storage to reduce the grid’s emissions Tierra Climate deployed a 100-MW battery in Texas explicitly to reduce emissions — and avoided nearly 1,500 metric tons of CO2.

Batteries can do some heavy lifting for the climate, but only if given the right instructions. The latest example comes from a Tierra Climate case study where using marginal #emissions data to inform charging patterns avoided nearly 1500 tonnes CO2. www.latitudemedia.com/news/how-to-...

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We are excited to bring our power grid emissions expertise to this collaboration with @sei.org, @klimatkollen.bsky.social, and Berget AI to investigate the true #carbon impact of #AI systems.

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We’re hiring!

WattTime is looking for a Development Manager for @climatetrace.org.

Learn more: watttime.org/about-us/car...

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Analysis: mandatory hourly matching’s high costs would likely kill so much clean energy procurement, it would increase total long-run emissions. - WattTime This post, a summary of this paper, explains one set of findings from another broader research paper. The full overview and broader paper are here: Impact Accounting and Hourly Matching: A Review As t...

‼️ WattTime analysis; costs could stifle procurement, increase overall emissions: watttime.org/news-and-ins...

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24/7 carbon-free electricity matching accelerates adoption of advanced clean energy technologies Iegor Riepin is a postdoctoral researcher specializing in energy systems at the Technische Universität Berlin. His work focuses on energy system model…

📈Cost increase paper 7: www.sciencedirect.com/science/arti...

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On the means, costs, and system-level impacts of 24/7 carbon-free energy procurement A growing number of public and private energy buyers are interested in 24/7 carbon-free energy (CFE) procurement, which means that every kilowatt-hour…

📈Cost increase paper 6: www.sciencedirect.com/science/arti....

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Using marginal emission rates to optimize investment in carbon dioxide displacement technologies Reduction in CO2 emissions from fossil fuel-based electric power generation is a primary focus of both the public and private sector. Over 1,500 corpo…

📈Cost increase paper 5: www.sciencedirect.com/science/arti....

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Clean Power by the Hour - RMI Matching buyers’ electricity demand with carbon-free energy supply can reduce costs and emissions.

📈Cost increase paper 4: rmi.org/insight/clea...

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System effects of carbon-free electricity procurement on regional technology, costs, and emissions Voluntary carbon-free electricity (CFE) procurement has the potential to accelerate electric sector decarbonization, but procurement strategies vary w…

📈Cost increase paper 3: www.sciencedirect.com/science/arti....

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Evaluating the Impacts, Costs, and Consequences of Proposed Scope 2 GHG Emissions Reporting Standards Voluntary corporate renewable energy procurement represented 44% of all renewable energy development in 2023, and over half of the world's 2,000 largest compani

📈Cost increase paper 2: papers.ssrn.com/sol3/papers....

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Cost and emissions impact of voluntary clean energy procurement strategies Large electricity consumers, particularly companies in the technology sector, are pursuing several different strategies to reduce their Scope 2 emissi…

📈Cost increase paper 1:
www.sciencedirect.com/science/arti...

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Companies committed to making genuine climate progress may need to look for an alternative standard. We're excited to see the GHG Protocol Actions & Market Instruments working group making progress on a standard that has the potential to drive real and fast impact. ghgprotocol.org/sites/defaul...

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We need a GHG accounting standard that encourages the acceleration of new clean energy, but unfortunately these Scope 2 revisions are pumping the brakes.

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Companies are worried that their long-term PPAs will not count under the new rules, even though they are the most direct way to add new clean energy to electric grids. They are hesitant to sign a new 20-year agreement that might be disqualified in the first few years.

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Many studies (resources below) predict that procurement costs would rise as a result of the Scope 2 proposal — enough to stifle voluntary procurement of renewable energy. The BNEF data show that prediction is already becoming a reality, even before the proposed requirements have gone into effect.

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“The [GHGP]… is updating its Scope 2 emissions standards, with proposed amendments potentially requiring hourly tracking and stricter geographical boundaries for indirect electricity… purchases. Under an hourly tracking regime, 100% renewable claims will become harder to justify for most buyers.”

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“...the largest technology firms signed most of the deals, with smaller players becoming less active, as project costs and policy uncertainty rose.”

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Corporate Clean Energy Buying Fell in 2025 After Nearly a Decade of Growth | BloombergNEF Global clean power purchase agreement (PPA) volumes fell for the first time last year in nearly a decade, as power prices and policy risks redefined market activity.

According to BNEF, new voluntary clean energy development slowed last year for the first time in nearly a decade. Global clean power purchase agreement (PPA) volumes fell about 10% in 2025.
about.bnef.com/insights/cle...

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Climate TRACE 2025 annual emissions data are live.

➡️Global emissions are still rising.
➡️Proven #climate solutions are making a difference in areas where adoption is high.

🚗 Ex: Since 2015, road transportation emissions have declined 6.2% in the Nordics, where some 70% of new cars are electric.

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Across just three #solar projects, the combined generation is estimated to avoid some 121,000 metric tonnes of carbon emissions annually — that’s #emissionality in action. www.akamai.com/blog/sustain...

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Akamai is bringing 128 MW of new renewable energy online this year, but these aren’t your average renewable energy megawatts — they come with a serious lift for the climate. ⚡️

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Elevated Style Meets Modern Power in the Next Generation 2027 Toyota Highlander - Toyota USA Newsroom OJAI, Calif. (Feb. 10, 2026) — Striking style, everyday versatility, and battery electric efficiency, that’s the all-new 2027 Highlander. With a stunning new look inside and out, and seating for up to...

The new Toyota Highlander doesn’t just look good, it does good too. ⚡️

Equipped with Eco Charge, Highlanders have the capability to schedule charging during times that will cause lower emissions and less harm to human health! We’re proud to partner with Toyota to make this possible!

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Scope 2 in the Hot Seat: What Hourly Matching Will Mean for Renewable Energy Buyers | Trellis

Headed to @trellisgroup.bsky.social #GreenBiz2026?

Catch WattTime’s Chandni Sinha Das in the following session:
Scope 2 in the Hot Seat: What Hourly Matching Will Mean for Renewable Energy Buyers.

📆 Wednesday, February 18 at 3 PM
trellis.net/session/scop...

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Data-driven climate action in America can make up for the Trump slump How smarter prioritization of straightforward voluntary actions can slash 20% of global carbon emissions

If you think climate progress is defunct under Trump — think again.

Here are four actionable strategies for the private sector that could reduce up to 100 Gt of emissions without any government support. @projectdrawdown.bsky.social

drawdown.org/insights/dat...

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In the ongoing Scope 2 carbon accounting debate, perhaps you’ve found yourself asking the question: “What does the research say?”

This meta-study takes a look at the results of impact accounting vs. hourly matching: watttime.org/wp-content/u...

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The Scope 2 revolt at the GHG Protocol Experts flag concerns over proposal to update guidance on carbon accounting methodologies

Greater accuracy ≠ greater impact for emissions claims. Claims are what is said on paper, while impact is how the real world changes based on what is actually done. For Scope 2 emissions reporting, shouldn't climate impact be the bottom line?
www.corporatedisclosures.org/content/top-...

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A yellow and white graphic titled "WEBINAR ALERT: Navigating the Greenhouse Gas Protocol's Scope 2 Public Comment Period." Three headshots are centered for Chandni Sinha Das, Impact Accounting Manager, Gavin McCormick, Executive Director, and Henry Richardson, Senior Analyst of WattTime. Wednesday, January 14th, 10 am PT, 1 pm ET.

A yellow and white graphic titled "WEBINAR ALERT: Navigating the Greenhouse Gas Protocol's Scope 2 Public Comment Period." Three headshots are centered for Chandni Sinha Das, Impact Accounting Manager, Gavin McCormick, Executive Director, and Henry Richardson, Senior Analyst of WattTime. Wednesday, January 14th, 10 am PT, 1 pm ET.

📣 LAST CALL FOR THE GHGP SCOPE 2 COMMENT PERIOD WEBINAR! 📣

This Wednesday, January 14, at 10 am PT/1 pm ET, is the final webinar on “Navigating the Greenhouse Gas Protocol’s Scope 2 comment period: What you need to know.”

Register here:
us06web.zoom.us/webinar/regi...

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Texture and WattTime Deliver Real-Time Emissions Intelligence for Operational Decision-Making Texture and WattTime have partnered to bring real-time marginal CO₂ emissions intelligence directly into the Texture platform. Energy services companies can view emissions impact alongside normalized ...

We’re excited to announce a new partnership with Texture, which is making real-time operational marginal emissions data available to partners using the Texture Platform.
www.texturehq.com/press/textur...

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Harvard professor and power systems expert William Hogan writes about the false promise of physical power matching for GHG accounting in this new letter. whogan.scholars.harvard.edu/sites/g/file...

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Unfortunately, given the physical realities of power grid infrastructure, one cannot simply trace electrons from a single source to its destination. This problem is not new to the current GHGP Scope 2 debate — it has been understood for decades.

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