Top Clean Energy Startups in 2026

Light turns power into a platform. We help leading brands—like solar providers, automakers, and home platforms—offer embedded, branded electricity plans to their customers. Our partners are reshaping how people experience energy, unlocking better customer experiences or the full potential of products like batteries, EVs, and other smart devices. We’re bringing together the best builders in tech and energy, backed by top investors and angels. Based in Austin, TX, we’re not just building a better utility—we’re redefining what a power company can be.

Moment Energy is repurposing Electric Vehicle (EV) batteries into clean, safe, and reliable power storage for on and off-grid applications. Their goal is to accelerate the transition to renewable power. By creating a circular economy for EV batteries, Moment extends their lifetime value by using them in second-life applications. As EV batteries still have up to 80% of the capacity left at the end of their life in a vehicle, we prevent toxic battery disposal in landfills and the need to mine lithium for the creation of new batteries.

Tetra is leading the clean energy transformation by adding transparency and efficiency into a forgotten industry. Home improvement contractors are left in the past, lacking automation and technology to run and scale their small business. This leaves homeowners without the necessary information to make easy, fast decisions and creates a painful buying process. Homeowners are unaware they can reduce carbon emissions and lower their utility bills. We provide the most efficient and affordable options to homeowners, improve their experience, and coordinate the installation of home improvement projects. In doing so, we're “super powering” contractors by automating admin tasks and allowing them to focus on installation excellence and customer happiness. We’re starting by transforming heating and cooling replacements, a $120 billion industry which makes up 12% of total energy usage in the US. Federal and state government agencies allocate billions of dollars in incentives to help homeowners choose high-efficiency systems—now at unprecedented levels thanks to the Inflation Reduction Act of 2022—but the dollars are historically underutilized due to lack of customer awareness. We’re democratizing and unlocking those incentive dollars. We started in Massachusetts, where we’re now 4%+ of the heat pump replacement market, and launched in New York in mid-2024, where we’re already seeing great traction, validating that our model has the potential to scale nationwide. With backing from the likes of Lerer Hippeau, Gutter Capital, Greycroft, and others, we’re now preparing to do exactly that.

Solar panel Installations

We are your strategic ally for driving growth through data-driven, people-powered, and action-accelerated solutions. We have shed the constraints of conventional consulting to unlock your company’s potential.

Xempla is the world’s first decision support system for enterprise asset management, designed to provide any operations and maintenance team with the tools, resources and assistance they need to make better decisions throughout the asset lifecycle. We are building the most reliable and easy-to-use EAM tool on the market, helping O&M teams thrive in an increasingly digital, data-first environment. We have recognised some of the most pressing challenges facing the industry - from a widening skill gap to an ageing workforce and shortage of newcomers into such roles, creating an urgent need to retain and transfer knowledge, coupled with the significant costs of capacity building. And we’ve made sure we’ve covered it all, so asset and facility management companies can focus on delivering positive outcomes for their customers, driving their teams forward, and growing their business.

SkySpecs optimizes wind farm operations and maintenance through the use of autonomous robotics, data analytics, and machine learning. Wind farms have significant costs for unplanned maintenance and downtime, resulting in a loss of energy generation and revenue. SkySpecs has developed a platform called Horizon that manages the entire blade inspection and repair process. SkySpecs completely autonomous drones collect repeatable, measurable images of all four sides of all three blades in a single flight with no human input or operation. This data is processed through Horizon and a team of blade experts help prioritize repair planning with farm operators. In 2.5 years, SkySpecs has inspected over 26,000 wind turbines in 17 countries.

We’re on a mission to improve the reliability, transparency, and efficiency of our energy systems, fostering a future with sustainable and abundant energy. To accomplish our aims, we’re leveraging state of the art statistical learning and convex optimization methods (AI) to build the financial rails of our future energy systems that will accelerate the deployment of clean energy resources.

Solar, EV charging and storage installations for commercial and residential customers.

SolBid provides businesses with a software and services solution that empowers them to efficiently and effectively deploy clean solar energy resources without the headache and expense of building out their own internal solar division or hiring 3rd party consultants and developers.