Energy Startups

Nuno Labs has developed a hardware-based solar forecasting system that predicts photovoltaic power generation, built by a team with backgrounds in mathematics, engineering and energy. The company also appears to offer design and website creation services.

2 investors

Nuru builds and operates solar-based mini-grids to provide electricity in the Democratic Republic of Congo, including a 1.3MW solar hybrid site in Goma described as the largest off-grid mini-grid in sub-Saharan Africa. The company serves Congolese communities with additional sites in Beni, Tadu, and Faradje.

2 investors

NYBL provides management systems and environmental monitoring solutions for energy, oil and gas, and industrial process industries. The company serves operational teams seeking to improve efficiency and environmental performance across upstream, downstream, chemical, and utility sectors.

2 investors

Nyobolt develops high-power lithium-ion batteries with ultra-fast charging based on niobium tungsten oxide anode materials, delivered as integrated energy storage systems. It targets applications requiring high uptime such as AI data centres, autonomous robotics, commercial and passenger EVs, grid infrastructure, and heavy industrial fleets.

2 investors

Octet provides electrolyte development and manufacturing services to battery innovators working with alternative chemistries. The company operates as an R&D partner and manufacturer, helping companies transition from lab-stage battery technologies to commercially viable products at scale.

2 investors

OffGridBox provides integrated systems combining renewable energy generation and water purification for households and institutions such as health clinics and schools, including in humanitarian settings like refugee camps. Operating since 2016 with an initial pilot in Rwanda, it aims to give communities affordable access to clean water and renewable energy in the face of climate change.

2 investors

Ohmium develops integrated outdoor green hydrogen electrolysis systems designed for rapid deployment across diverse climates and industrial applications. The company provides modular PEM electrolyzer units, engineering services, and remote monitoring for decarbonization projects globally.

2 investors

Okapi Technologies is a SEDA-registered solar financing provider that offers zero-upfront, instant-approval financing products to help homeowners adopt residential solar energy. It works through a network of solar installer partners serving homeowners in Malaysia and Southeast Asia.

2 investors

This page is an investment portfolio listing from Omnes Capital showing 100+ portfolio companies across multiple sectors including deeptech, renewables, biotech, healthtech, materials, and real estate. It is not a company website but a VC/PE firm's investment page.

2 investors

Omniflow manufactures smart outdoor IoT devices powered by integrated wind and solar energy, including lamposts and urban furniture designed for cities and public spaces. The company's systems reduce energy consumption by over 60% compared to standard LED lighting while enabling multiple connected applications.

2 investors

One Utility Bill consolidates utility bills for renters and residential customers into a single monthly payment. The company provides account management and customer operations services for household utilities including broadband, energy, and water.

2 investors

Oolu is an off-grid solar company serving rural, unelectrified households in West Africa, offering solar products at affordable prices. It operates in the clean energy sector with a focus on the African market.

2 investors

Open Energy develops electric vehicle platforms and battery swap systems for B2B fleet operators in logistics and ridesharing, combining automotive engineering expertise with AI-powered energy management solutions.

2 investors

Openvolt provides API infrastructure that unlocks smart-meter data to enable developers to build energy management applications for electrification and decarbonization. The company serves software developers building applications for electric vehicles, renewable energy, heat pumps, and other electrified assets.

2 investors

Opna is a market infrastructure platform that verifies power equipment supply and factory capacity, matches buyers to suppliers, and provides project-aligned financing for critical grid equipment. It addresses bottlenecks in global grid procurement for data centres, renewable energy projects, and industrial reshoring.

2 investors

OptiGrid provides a battery optimisation and trading intelligence platform that uses AI-driven electricity price forecasting and optimisation to help asset owners operate grid-scale batteries and make investment decisions. It targets Australia's National Electricity Market, serving battery and energy asset owners in the renewable energy sector.

2 investors

Optimeering builds real-time forecasting and automation software for same-day European power market operations, including imbalance price forecasts and aFRR/mFRR capacity market forecasts. It serves energy market players and has developed pricing and clearing algorithms for the Nordic reserve capacity markets in collaboration with the Nordic TSOs.

2 investors

Optimems develops smart, automated control systems and a software platform for managing microgrids and complex energy systems. It serves homeowners, businesses, aggregators, and energy producers, helping them ensure regulatory compliance, optimize performance, and improve financial results across energy markets.

2 investors

OpusFlow is an all-in-one ERP platform built specifically for solar, heat pump, battery, and other sustainable energy installation companies across Europe. It integrates sales, operations, planning, warehouse, and finance functions with industry-specific features like PV system design, energy simulation, and BOM-to-purchase-order automation.

2 investors

Origis Energy develops renewable energy solutions and decarbonization services to help customers achieve net-zero goals. The company serves businesses and communities pursuing carbon-free operations.

2 investors

Órigo Energia is a Brazilian distributed solar energy company that lets homes, apartments (including rented), businesses, and shops subscribe to solar energy without installing panels, applying credits from its 200+ solar farms to reduce customers' electricity bills. It operates as a subscription-based solar provider serving multiple states across Brazil.

2 investors

Otark operates a digital platform for procuring and selling certified green electricity in Germany, connecting industrial and mid-sized buyers directly with producers through a PPA marketplace, standardized 1-Click PPAs, and a planned Green SPOT day-ahead exchange. It handles contract execution including physical delivery, balancing group coordination, guarantee-of-origin transfers, and settlement data for its 350+ business customers.

2 investors

Otoro Energy develops a non-flammable, low-cost flow battery offering 10+ hours of storage duration for utilities powering critical infrastructure. The technology operates at neutral pH, is non-corrosive and non-toxic, and has been deployed in partnership with a Tier-1 US utility.

2 investors

Oxxio is a Dutch energy provider offering electricity (100% green power) and gas to consumers under fixed, variable, and dynamic pricing contracts. It provides an app for customers to monitor usage and manage energy costs in the Netherlands.

2 investors