Gridsight raises $26M Series B to unlock electric grid capacity for solar
Sydney-founded Gridsight raised $26M in a Series B led by Insight Partners on 1 September 2026 to expand AI grid capacity software used by US utilities.
Photo by Petr Ganaj on Pexels
Gridsight, an AI grid capacity software company founded in Sydney, Australia in 2020, raised a $26 million Series B round led by Insight Partners, the company announced on 1 September 2026. The funding will support US expansion for a platform that helps utilities find and release spare capacity on the existing electricity grid, after Australian utility Endeavour Energy used the software to double household solar export limits from 5 kilowatts to 10 kilowatts.
What Gridsight’s software does
Gridsight builds what it calls a “Foundational Grid Model,” a continuously updated, utility-specific model that unifies fragmented grid data with electrical physics. The company says this lets its AI agents identify where a grid has unused capacity, rather than relying on the conservative, worst-case assumptions utilities have historically used to set connection and export limits. Galvanize joined the Series B as a new investor alongside existing backers Airtree, Energy Transition Ventures and Aera VC. Insight Partners managing director Rachel Geller is joining the round.
The Endeavour Energy result
Endeavour Energy, which distributes electricity to more than 2.7 million people in New South Wales, has used Gridsight’s platform since 2021. Applying dynamic, real-time control instead of static limits, the utility raised typical household solar export caps from 5 kW to 10 kW. Gridsight and Endeavour Energy say this unlocked more than 600 megawatts of additional solar export capacity and an estimated $100 million-plus in customer value, largely from households and businesses that can now export more self-generated solar power to the grid instead of having it curtailed.
| Metric | Figure |
|---|---|
| Series B raised | $26 million |
| Lead investor | Insight Partners |
| New investor | Galvanize |
| Household solar export limit, Endeavour Energy | Raised from 5 kW to 10 kW |
| Additional solar capacity unlocked | 600+ MW |
| Estimated customer value | $100 million-plus |
| Named US utility clients | Xcel Energy, United Illuminating |
Source: Gridsight and Latitude Media, 1 September 2026.
US expansion
Gridsight already counts Xcel Energy and United Illuminating, an Avangrid subsidiary, among its US utility clients, alongside customers in New Zealand and the UK. The company says the new capital will fund further US deployments as utilities face rising numbers of solar, battery and electric-vehicle connection requests that strain historical grid-planning assumptions. Xcel Energy senior vice president of electric distribution Todd Conner said the platform gives the utility a clearer view of where existing infrastructure can safely take on more load or export.
Gridsight’s approach fits a broader push toward software-based grid capacity management rather than new infrastructure alone. US states took 481 grid modernization actions in Q2 2026 tracked a wave of state-level policy activity on exactly this kind of technology, and FERC clears SPP to reroute power around grid congestion covers a separate, transmission-level example of software finding capacity within an existing grid rather than waiting for new lines to be built.
Background
Gridsight was founded in Sydney in 2020 to help electricity distributors model and manage capacity on ageing grid infrastructure as rooftop solar and electric vehicles add new, harder-to-predict load and generation patterns. The company’s platform has been running on Endeavour Energy’s network since 2021, giving it several years of production data to refine its capacity models before pursuing the US utilities it now counts as clients. The $26 million Series B follows New York’s own $24 million programme funding similar grid-enhancing technologies, part of a wider trend of utilities and regulators looking to software to add grid capacity faster than new transmission and distribution hardware can be built.
Sources: PR Newswire (Gridsight); Latitude Media
Featured image: photo by Petr Ganaj on Pexels (free Pexels license).
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I specialize in sustainability education, curriculum co-creation, and early-stage project strategy. At WINSS, I craft articles on sustainability, transformative AI, and related topics. When I’m not writing, you’ll find me chasing the perfect sushi roll, exploring cities around the globe, or unwinding with my dog Puffy — the world’s most loyal sidekick.
