Top Clean Technology Startups in 2027

Fuel accounts for nearly 40% of operating costs in the Trucking Industry. For those long haul, over-the-road delivery fleets who face large costs associated with diesel gasoline, Hyliion is developing an add-on hybrid system for tractor-trailers that will reduce their fuel consumption by over 30% with an ROI of less than 1 year. Our mission is to supply the trucking industry with a unique product that will reduce fuel consumption and improve our energy footprint. The Hyliion System uses regenerative braking to capture power when the vehicle is slowing down and reuses it to accelerate. The Hyliion System is a win-win-win: a steward for the planet, people, and sustainable profit.

Threats from extreme weather and the increased adoption of distributed energy resources (DERs) require that electric utilities get smart about proactively mitigating risk on the distribution grid. These mitigations generally entail inspection and inventory of grid assets, but current methods are ill-suited for the task, requiring dedicated vehicles and crews - a process that is entirely manual, extremely costly and too slow. Noteworthy AI's solution, Inspector™, reduces the need for dedicated distribution asset inspections and mitigates risk at-scale while reducing cost. The Inspector hardware sensors and AI edge processing arrays mount on existing fleet vehicles and automatically geolocate, inventory, and identify pole-top component defects while vehicles perform routine operations, reducing the need to mobilize dedicated inspection teams.

The LiquidPiston 'X' engine is an advanced rotary internal combustion engine that is fuel efficient, extremely compact and lightweight, durable, quiet, and has near-zero vibration. The X-Mini engine is a 70cc gasoline SI engine, the size of a grapefruit, rated at 3-5 HP, weighing only 4 lbs. This engine is the company's most mature technology demonstrator - achieving 50% better fuel economy than comparable displacement piston engines. This engine can be used in generators, chainsaws, mopeds, UAVs, etc. In 2015 the company completed a $1M DARPA Feasibility study, and the company expects up to $12.5M in DoD contracts to develop diesel versions of its X engine for generator and UAV applications in 2016. The "X4" concept is a 30kW Diesel engine achieving 50% better fuel economy than a piston engine, in a 10x8x8" package, weighing 25lbs. While developed initially for the DoD, this engine will have applications including as a range-extending power source to increase range of an EV.

Yotta is the first truly-integrated solar + storage solution. We're creating more opportunities to deploy solar by engineered a radically streamlined, end-to-end solar and storage solution that can grow with your future power needs.

Swift Solar is a U.S.-based startup developing lightweight and flexible solar panels that are both cheaper and more efficient than conventional panels.

Responsible Energy’s multi-patented Free Radical Gasification (FRG™) solution can competitively protect the environment by destroying waste, while at the same time produce a multitude of renewable resources. The secret of the FRG™ process is the precisely controlled generation of a >5,000oC (>9,000oF) conversion zone. At this temperature, similar to that of the sun, molecular bonds are broken apart creating a valuable clean synthesis gas (syngas).

Kanin Energy is a project developer focused on reducing industrial emissions and utilizing waste heat to produce clean baseload power.

Voltus represents the "potential of us"​ to better manage energy through simple, cost-free energy management products. Our commercial and industrial customers generate cash by allowing us to be their energy expert while we deliver innovative demand response, energy purchasing, and energy efficiency programs to them. It's this simple: a customer signs up with Voltus and every quarter we deliver dollars. Voltus makes money when our customer makes money by sharing the cash generated from working together. What's more, there are significant community benefits that accompany working with Voltus - a cleaner, more reliable energy future and dollars invested back into your business and jobs instead of being wasted on a larger energy bill.

Helping you save money and reduce your carbon emissions. GridDuck is an online dashboard connecting affordable and easy-to-install IoT sensors, clamps and switches. Our platform provides gas, water and electricity submetering, alongside the ability to automate and balance your energy consumption. We work with clients such as Abel & Cole, Deliveroo, Pepsi (potato chips side), Heineken, National Highways and many more. We also work with an increasing number of energy brokers and consultancies, on a white label basis

The Vue is the Smart Home Energy Management Solution that provides 24/7 monitoring of home energy, appliances, heating and AC. The Vue home energy monitoring system gives homeowners insight and assurance by preventing costly repairs, making homes more energy efficient, and saving you money in the process.