We are thrilled to share that Graduate Entrepreneur has made a pre-seed investment in Renset, a groundbreaking clean energy company that is transforming portable power solutions for construction sites, utility companies, and festivals.
For years, these industries have relied on diesel and petrol generators to meet their energy needs—solutions that are not only noisy and inefficient but also emit significant CO₂, negatively impacting both the environment and worker health. A typical 5 kVA diesel generator, one of the most commonly used, emits around 50 kg of CO₂ per day while operating at only 40% efficiency in converting fuel to electricity. Additionally, maintaining combustion engines incurs high costs, increases operational expenses, and creates a reliance on fuel availability, adding complexity to logistics.
Renset has introduced an innovative, durable, and waterproof portable battery system, designed specifically for utility and construction sites. Unlike traditional heavy alternatives, Renset’s battery system is lightweight (50kg), making it significantly easier to transport, install, and relocate. This flexibility is a game-changer for mobile operations that require frequent movement of power sources. Renset’s solution is not only high-output and emission-free but also addresses the key challenges of conventional fuel-based generators, including CO₂ emissions, noise pollution, and fuel dependency.
One of Renset’s most notable innovations is its modular, swappable battery packs. These packs ensure a continuous energy supply—when one battery is depleted, it can be quickly replaced with a fully charged unit, maintaining an uninterrupted power flow without the need for on-site recharging infrastructure. This seamless transition minimizes downtime and maximizes operational efficiency.
The Renset system is built with a modular approach, featuring four available slots for 1 kWh battery modules. This allows users to scale capacity as needed, with a maximum of 4 kWh when all four modules are in place—sufficient to power an average contractor’s daily use of low to medium-power tools. This adaptability enables users to customize their energy supply based on specific job requirements, scaling up or down as necessary. When a battery module runs out, it can be effortlessly swapped for a fully charged one, keeping operations running smoothly.
At YES!Delft, we believe in supporting startups that drive meaningful innovation and sustainability. Renset’s technology is a prime example of the forward-thinking solutions we champion—clean, efficient, and designed to meet the growing demand for sustainable energy alternatives in dynamic work environments.
Want to learn more about Renset? Visit their website and discover how they are shaping the future of portable energy!
