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Tem Raises $75M to Transform Electricity Markets with AI

Published Feb 10, 2026
Updated Apr 30, 2026
Tem Raises $75M to Transform Electricity Markets with AI

Tem's AI-Powered Approach to Energy Markets

As the demand for AI data centers drives up electricity prices, the London-based startup Tem is leveraging artificial intelligence itself to tackle the issue. Tem has developed an innovative energy transaction engine that utilizes AI to reduce costs compared to traditional energy traders. The company has already garnered over 2,600 business customers across the U.K., promising significant savings of up to 30% on their energy bills through its utility division.

Significant Funding Round and Expansion Plans

Tem recently concluded an oversubscribed Series B funding round, raising $75 million. The round was led by Lightspeed Venture Partners, with notable participation from AlbionVC, Allianz, Atomico, Hitachi Ventures, Revent, Schroders Capital, and Voyager Ventures. This substantial investment values Tem at over $300 million. The startup intends to use these funds to fuel its expansion into new international markets, with initial focuses on Australia and the United States, beginning with Texas.

Vision for Profitability and Market Leadership

Joe McDonald, co-founder and CEO of Tem, expressed confidence in the company's financial position, stating, "We’re in a nice position where we kind of have control over our own profitability. So I could have chosen not to raise at all and had a lovely, nice bootstrap business in some ways." However, the company's ambitions extend beyond bootstrapping; McDonald shared, "Well, we’re not that kind of business. We know what we want to achieve as someone who wants to go public over the years."

Marketplace Model and Customer Base

Tem operates on a classic marketplace model, connecting electricity generators directly with consumers. The company strategically focused initially on renewable energy generators and small businesses to effectively populate both sides of its platform. McDonald highlighted, "The more decentralized and the more distributed, the better it is for the algorithms. But this works all the way up to enterprise." Its impressive client roster includes prominent names such as fast-fashion retailer Boohoo Group, soft drink company Fever-Tree, and Newcastle United FC.

The Rosso and RED Platforms

Currently, Tem operates two distinct business arms. The first, known as Rosso, serves as the core transaction engine, intelligently matching energy suppliers with buyers. This platform employs machine learning algorithms and LLMs to accurately predict supply and demand dynamics. The primary objective of Rosso, as explained by McDonald, is to streamline costs by eliminating redundant layers common in existing energy markets. He elaborated, "In each of them, you’ve got different teams doing different jobs, taking different levels of profit from back office to trading, trading desks to other trading desks, and probably five to six intermediaries in total that enable the flow of money to move from one side to the other."

McDonald further explained the transformative potential of AI in this sector: "With AI, you now have an opportunity to replace the humans, the labor costs, and the disparate systems into one single transaction infrastructure." The ultimate goal is to align the price customers pay for electricity more closely with the wholesale cost.

The second component of Tem is RED, a "neo-utility" designed to demonstrate the efficacy of Rosso. McDonald shared, "When we first started, we tried to sell our infrastructure to the energy companies, and we got nowhere." Consequently, RED currently stands as the sole utility utilizing Rosso, and its growth has prompted Tem to prioritize its development over offering Rosso to other utilities.

Future Plans and Infrastructure Vision

Tem does plan to open its platform to other utilities in the future. "In reality, it doesn’t matter how good [RED] is; it’s not going to get above a 40% market share. And it shouldn’t, because that becomes a monopoly in itself. So, me, I’d much rather go to get access to all the transaction flow," McDonald stated.

He concluded with a clear vision for the company's long-term strategy: "Long term, we really don’t mind who owns the customer, who owns the generation as long as our infrastructure is being used. This is just an infrastructure play in the same way AWS was, or Stripe was." This perspective underscores Tem's ambition to become a foundational technology provider in the energy sector.

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