In recent years, devastating wildfires have ravaged ecosystems, displaced entire communities, and caused staggering financial losses. The United States, particularly California, has long grappled with severe wildfires, with the Los Angeles wildfires of 2024 standing out as a stark example. They inflicted an estimated $250 to $275 billion in economic damage, making them one of the most financially devastating natural disasters in modern history. Meanwhile, the wildfire crisis has now also intensified across Europe. Portugal, Spain and France have all recorded major wildfire events in recent years.

A substantial share of natural disaster costs – and the operational risks that stem from them – are borne by grid operators. Wildfires and extreme weather events force utility companies into widespread power shut-downs, trigger blackouts, damage infrastructure, and expose them to legal liability. At the same time, more frequent and severe power outages have placed even bigger strain on utilities.

The U.S. Department of Energy estimates that power outages cost the U.S. economy approximately $150 billion annually. Vegetation risks, such as falling trees and branches, are a primary driver of both power outages and wildfires. As a result, vegetation management has become one of the most important operational challenges for grid operators. Labor shortages, surging operational costs, and persistent threats of outages and wildfires have combined to make vegetation management not only more complex, but critically important. Grid operators must now find ways to be both highly cost-efficient and extremely proactive by deploying advanced technology and analytics, optimizing field resources, and balancing environmental compliance.

This is where Overstory excels. The company is on the front lines of tackling and mitigating climate-driven challenges, while optimizing resources for its clients. Founded by visionary founders in the Netherlands and led by CEO Fiona Spruill, the company is reshaping how utilities prevent and respond to environmental risks. Overstory’s AI-powered platform leverages high-resolution satellite imagery to identify and predict threats, enabling utilities to manage vegetation, implement targeted interventions, and prevent outages or fires more effectively than ever before. Already trusted by leading U.S. utilities, Overstory is cementing its reputation as a global leader at the intersection of technology, climate, and infrastructure resilience.

At Blume, we are excited about technology solutions that have the potential to deliver both measurable climate impact and strong financial returns. When we first met Fiona in 2023, we quickly recognised that Overstory perfectly fits our thesis: the company leverages technology to strengthen grid resilience, mitigate climate-related risks and drive tangible cost efficiencies for utility operators. What really stood out to us was the strong commercial momentum and how ‘Overstorians’ place the customer at the heart of everything they do, from the early stages of product development and throughout the customer relationship. This, combined with their deep technical know-how and early adoption of AI, has enabled Overstory to deliver cutting edge, yet practical technology solutions that deliver significant ROI for clients and climate impact for all stakeholders. We are thrilled to partner with Overstory on the journey ahead.

Blume Equity is a specialist climate-tech growth equity firm. Blume Equity focuses thematically on disruptive European climate tech scale-ups with the mission to help entrepreneurs accelerate growth and impact in the pursuit of Net Zero. The Blume Equity team works in close partnership with management teams on the growth journey, drawing upon the team’s deep scale-up and sustainability expertise.

Blume Equity

Disclaimer:
This communication is intended solely for professional investors as defined under the Financial Services and Markets Act 2000 (“FSMA”) and associated FCA rules. It does not constitute a financial promotion under FSMA and it has been approved for issue in the UK.

1. Accuweather
2. US Department of Energy
3. Vegetation Management: Key Levers for Cost Savings, Accenture