Leading Investors back WattCarbon to Accelerate Role as the "Weights and Measures" for the Energy Transition

Onward in our journey

I’ll attach the press release below, but I just wanted to take a minute to acknowledge the WattCarbon team for putting us in a position to continue our work - with support from new and existing investors. The past six months have been pretty challenging for everyone working in climate. We had to make some tough decisions to let go of really valuable team members along the way, and there were times that I was unsure whether WattCarbon would even make it to our four year anniversary at the end of this month.

But the team buried themselves to get Aristotle released back in April, and we’ve been fortunate to work with really great partners who believe in what we’re building - companies like Prologis and organizations like Rewiring America, and friends from throughout the industry who have stepped up in ways that will forever be part of our story. We’re able to continue to imagine a world in which demand-side energy markets scale to unlock the $10 trillion in investment we need to decarbonize the built environment. Today we are able to keep going on this journey because Matthew Stotts and Jahed Momand at Cerulean Ventures, Josh Cohen at City Light Capital, Tom O’Keefe, and Priscilla Tyler and the rest of the team at True Ventures also believe in this vision and were willing to back us to support our work.

Those of you close to the startup world know that this is a challenging time to raise capital. I’m particularly grateful for all of the intros, all of the meetings, and all of the advice that we have received over the past several months as we’ve tried to navigate these unsettled waters. Now it’s time to repay the favors by rolling up our sleeves and getting back to work. I want to launch some VPPAs for VPPs, see more carbon credits sold for installing heat pumps, automate M&V for new ESCO business models, deploy Green Equity Finance to replace all of the expiring tax credits, and help all of the other companies pushing on the energy transition find traction to accomplish their own goals. The stakes have never been higher and the alternatives never more stark. Let’s go!

San Francisco, CA – July 17, 2025 – WattCarbon, the industry-leading measurement and verification (M&V) platform for distributed energy resources, today announced the successful completion of a Seed Extension round featuring new investors Cerulean Ventures, City Light Capital, and Tom O'Keefe, alongside existing investor True Ventures. This additional funding will accelerate WattCarbon's mission to become the authoritative "weights and measures" system for the energy transition, providing the transparent, auditable measurement infrastructure that unlocks new markets and maximizes value for clean energy investments.

Transforming Energy Markets Through Rigorous Measurement

As the energy sector rapidly transitions toward distributed clean resources, the lack of standardized, transparent measurement has created a critical market gap. WattCarbon's AI-powered platform, Aristotle, addresses this challenge by serving as the definitive "system of record" for hourly energy attributes, tracking every kilowatt-hour saved and every gram of carbon avoided with unprecedented granularity and transparency.

"Hourly energy attributes are the currency of the energy transition," said McGee Young, CEO of WattCarbon. "If you are still aggregating kWh without paying attention to time, location, carbon, capacity, or availability, you’re still living in the dinosaur economy. Winning the energy transition means unlocking real value. The days of greenwashing are over."

Unlocking New Value Through Precision Measurement

WattCarbon's measurement and verification capabilities are creating entirely new markets and value streams for distributed energy resources:

Automated Measurement and Verification (M&V): Processes that have historically taken months are now completed in seconds, as WattCarbon combines state-of-the-art data pipeline infrastructure with automated algorithms for calculating hourly energy savings. Any type of energy asset - from whole buildings, to EV chargers, to solar and batteries, are tracked in real-time so that they can be leveraged individually and collectively as functional energy assets.

Energy Attribute Certificates (EACs): WattCarbon's platform generates hourly EACs for every asset, creating tradeable certificates that represent verified energy savings and carbon reductions. This granular approach enables building owners, utilities, and corporations to monetize their decarbonization efforts in ways previously impossible.

Portfolio-Level Intelligence: The platform consolidates data from entire building portfolios into a single, intuitive interface, enabling sophisticated analytics that turn raw information into actionable insights. Users can identify top-performing assets, pinpoint optimization opportunities, and benchmark performance across their entire portfolio.

Strategic Investors Bring Deep Market Expertise

The addition of Cerulean Ventures, City Light Capital, and Tom O'Keefe brings significant strategic value beyond capital:

Cerulean Ventures

Cerulean invests at the intersection of AI, data, and climate, backing founders who create exponential solutions for nature and the built environment.

City Light Capital

City Light Capital is an early-stage impact VC firm. They partner with experienced teams building category-defining solutions in the areas of education, care, and climate where more revenue means more impact at scale, every time..

Tom O’Keefe

Tom O’Keefe is a climate-tech angel investor and policy organizer focused on accelerating capital flows toward decarbonization and climate resilience.

“WattCarbon is solving one of the most fundamental challenges in the clean energy transition – how do we accurately measure and verify the impact of distributed resources at scale," said Matthew Stotts from Cerulean Ventures. "Their platform creates the measurement infrastructure necessary to unlock trillions of dollars in clean energy investments, and drive the energy transition at Earth-scale.”

Addressing Critical Market Needs

The energy transition is creating unprecedented demand for accurate, real-time measurement of distributed resources. Traditional measurement approaches cannot keep pace with the complexity and scale of modern clean energy deployments. WattCarbon's platform addresses several critical market needs:

Utility Scale Grid Management: Providing utilities with real-time visibility into distributed energy resource performance, enabling better forecasting, planning, and integration of customer-owned assets.

Corporate Decarbonization: Helping enterprises develop innovative strategies for accelerating the energy transition and supporting ambitious net-zero commitments with credible data.

Program Optimization: Enabling program administrators to identify high-performing interventions and optimize resource allocation based on verified outcomes rather than projections.

Investment Validation: Providing investors and lenders with transparent, auditable data on clean energy project performance, reducing investment risk and enabling new financing models.

Platform Capabilities Drive Market Transformation

WattCarbon's Aristotle platform represents a fundamental advancement in measurement and verification technology:

• Automated M&V: AI-powered engine tracks entire portfolios of buildings and energy assets automatically in real-time

• Transparent Methodologies: All calculations follow published, peer-reviewed methodologies with full audit trails

• Granular Integration: Ingests data from smart meters, IoT devices, and building management systems at device-level granularity

• Real-Time Analytics: Provides immediate feedback to enhance project optimization opportunities

• Regulatory Compliance: Designed to meet evolving regulatory requirements with defensible, approved methods

Looking Forward: Scaling the Infrastructure for the Energy Transition

With this additional funding, WattCarbon will accelerate platform development and expand its customer base across utilities, enterprises, and program administrators. The company is positioned to become the standard measurement infrastructure that enables the next phase of clean energy market evolution.

"We're not just measuring the energy transition – we're providing the measurement infrastructure that makes the energy transition possible," said Young. "Every successful market transformation requires trusted measurement standards. We're building that foundation for the clean energy economy."

The funding will support continued platform development, expanded market penetration, and the advancement of open-source measurement methodologies through the OpenEAC Alliance. WattCarbon's platform is the only solution capable of measuring and reporting savings hourly across both energy and environmental attributes, positioning the company at the forefront of the energy transition.

About WattCarbon

WattCarbon is the first fully automated M&V platform for demand-side energy resources. Its Aristotle™ engine ingests utility, sub-meter, and device telemetry; applies statistically robust baselines; and delivers auditable savings and carbon-impact calculations in near-real time. For more information, visit www.wattcarbon.com.