MCJ

MCJ is a venture capital firm that invests in startups driving the transition of energy and industry towards cleaner, more profitable, and resilient solutions. They back extraordinary founders tackling climate change impacts and connect them with a network of tech and industrial leaders through the MCJ Collective. Additionally, MCJ operates a media platform, including the Inevitable podcast, to spotlight key perspectives in the transition to a low-carbon economy.

David Aronoff

Chairman and Managing Partner

Past deals in Electric Grid

Exowatt

Series A in 2025
Exowatt is a renewable energy company that specializes in modular, full-stack energy solutions for commercial and industrial clients. Their innovative system comprises a heat collector, a heat battery, and a heat engine, which together generate dispatchable power and heat on demand. This enables businesses, particularly those with energy-intensive operations like data centers, to meet their energy needs sustainably and reliably throughout the day.

WeaveGrid

Series B in 2022
WeaveGrid is a technology company focused on facilitating the integration of electric vehicles (EV) with the power grid. By employing machine learning, optimization, and predictive analytics, WeaveGrid's software addresses the challenges associated with EV-grid integration for utility companies. This innovative solution not only enhances the incorporation of renewable energy resources but also aims to reduce costs for utility customers. The company's efforts support the broader goals of decarbonization in the transportation and power sectors, enabling utilities to safely and economically adapt to the growing demand for electric vehicles.

Overstory

Seed Round in 2021
Overstory is a company that utilizes artificial intelligence and advanced satellite imagery to provide vegetation intelligence for electric utilities. By analyzing satellite data, Overstory helps these utilities identify and prioritize potential vegetation risks near power corridors, enabling better decision-making and resource allocation. This proactive approach aims to prevent power outages, reduce wildfire risks, and enhance the safety and resilience of the electrical grid. Additionally, Overstory's platform offers global-scale automated analysis, segmenting tree species, estimating wood volume, and assessing tree health. This functionality supports corporations, NGOs, and governments in their efforts to combat deforestation and promote sustainable forest management practices.

Leap

Series B in 2021
Leap is a marketplace for Distributed Energy Resources to participate in the energy market. It allows every connected device to help balance the grid, and get paid for it and access wholesale markets through a single API and help build the flexible, renewable grid of the future. Leap aims to make global energy markets accessible to anyone, starting with demand response and expanding into generation and ancillary services. Leap was founded by Thomas Folker and Remco Van Den Elzen.

Rhizome

Rhizome operates an AI-driven climate resilience platform that assists electric utilities in assessing climate risks with high precision. The platform quantifies the economic and social impacts of infrastructure investments aimed at bolstering climate resilience for both communities and businesses. By identifying vulnerabilities to climate threats and measuring the benefits of grid-enhancing projects, Rhizome enables its clients to mitigate the costs associated with damage and recovery from extreme weather events. Additionally, the platform supports clients in justifying public projects to policymakers, potentially increasing local infrastructure spending and enhancing access to federal grant funding. Through its innovative solutions, Rhizome aims to protect communities and businesses from the increasing challenges posed by climate change.
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