Participated · Equity · Nov 2025

Highview Power is an energy-infrastructure company that has spent 17 years developing proprietary Liquid Air Energy Storage (LAES) technology capable of storing renewable electricity for several weeks and providing critical grid-stability services. Its hybrid long-duration energy storage (LDES) plants pair LAES with lithium-ion batteries to deliver flexible, multi-hour power output while supplying inertia, short-circuit and voltage support. The company’s flagship Millennium Series will comprise 3.2 GWh facilities, beginning with a site at Hunterston, Scotland, that can power roughly 650,000 homes for up to 12.5 hours. A 300 MWh LAES plant is already under construction in Carrington, Manchester, and the Hunterston project’s first “stability island” phase is expected on-line by August 2026 with full storage operations targeted for 2027–2030. Highview also operates a grid-analytics platform that forecasts energy needs and optimizes plant dispatch. To date the firm has raised more than £500 million to commercialize and scale its technology, while creating a UK supply chain expected to support 1,000 construction jobs and 650 supply-chain jobs during build-out.

Participated · Equity · Apr 2025

Grid Edge provides AI-powered software that collects data from meters, sensors and building management systems, combines it with external data such as energy tariffs and weather feeds, and uses machine learning to model workplace operations and recommend energy optimisations. Its platform is deployed in developments including Birmingham’s Bull Ring shopping centre and London’s Royal Opera House, and is used by building owners and facilities management companies including Amey, Equans and OCS. The company reported a 150% increase in annual recurring revenue (ARR) in the last year and says it is on course to almost triple ARR again within two years while increasing locations from 120 to 400 in the same period. Grid Edge currently has a 28-strong team and plans to create 15 new jobs in sales, customer support and technical roles. It intends to use the funding to take on more customers and continue developing the platform. The funding is subject to approval under the UK National Security and Investment Act.

Participated · Equity · Mar 2023

Mixergy develops grid-connected smart hot water tanks that act as distributed energy storage, optimizing energy use and enabling better integration of renewable power. Its technology is said to cut hot water bills substantially (the article cites reductions up to 60% in one place and up to 40% for its top-down heating approach). The company offers hardware, software and a Mixergy App that uses machine learning to optimise consumption, and has an integrated hot-water heat pump with regulatory approval. Mixergy plans to pivot toward a technology-licensing and strategic-partnership model focused on new builds, social housing retrofits and commercial properties, and to expand R&D capabilities. It has partnerships with energy companies including British Gas and targets social housing providers, property developers, energy utilities and HVAC OEMs. The company positions its tanks to store cheap or excess renewable energy and ease grid pressure during peak demand, supporting UK net-zero goals. Mixergy was founded at Oxford University and emphasizes reducing carbon emissions while cutting household costs. Mixergy is a Cassington, UK-based developer of smart and connected hot water tanks and home energy management technologies. The company holds a suite of IP around hot water heating, heat pump and home energy management, including a patented approach that exploits thermal stratification to heat only what users need. Its smart tanks enable households to save money and reduce their environmental impact. Mixergy also connects a decentralized digital network of tanks that can provide flexibility to the grid and support the clean energy transition. Led by CEO Peter Armstrong, the company plans to use new funds to open an R&D centre at its Oxfordshire headquarters, further develop its technology, and pursue international expansion beginning in Portugal. Mixergy raised £9.2M in the disclosed funding round. Mixergy develops residential smart hot water tanks that use machine learning and engineering to heat only the water a user needs. Its tanks can save residents up to 20% on hot water bills, provide up to 30% more usable hot water, and deliver hot water up to five times faster. The product is the first hot water product certified to deliver grid‑balancing services to the UK National Grid and can be controlled via sensors and software across a national network dubbed the “Internet of Tanks.” Mixergy is a 2014 spin‑out from the University of Oxford’s Energy and Power Group and has partnered with British Gas to launch and roll out products to households. The company says it plans to expand across the UK, Western Europe and North America and to leverage low‑cost manufacturing supply chains to address a global market.

Participated · Series B · Sep 2021

Omnidian delivers comprehensive protection and performance plans for residential and commercial solar and energy storage systems, using proprietary machine learning, AI and advanced analytics to assure asset performance and improve customer experience. The company emphasizes O&M services, business intelligence and uptime improvements for distributed renewable energy resources. Omnidian reports revenue more than tripled from 2022 to 2024 and cites a trailing 12-month gross revenue retention rate that distinguishes it in the industry. Headquartered in Seattle with international operations in Australia, Omnidian has a global team of 375+ and recently acquired an industry-leading solar service provider in the APAC region. With new capital, the company plans to scale core operations, expand geographically (including deeper growth in Australia and entry into new markets), and explore new product ecosystems such as EV charging infrastructure and commercial energy storage. The firm positions its technology-driven platform and client-focused operations as central to accelerating clean energy investments and improving bankability of solar assets. Omnidian provides end-to-end solar asset management for commercial and residential installers, developers, and owners, using proprietary software to remotely detect performance issues and manage assets. The company operates a network of more than 200 solar system experts across 34 states and a field service network covering 93% of U.S. ZIP codes. Omnidian expanded its international presence to Australia in 2022. It says part of its mission is to improve the post-purchase experience and nurture solar assets throughout their life cycle. The company will use capital to further technical innovation and add transparency into portfolio performance, job site status, and active remediations, as well as reporting enhancements to support portfolio managers. Omnidian has been named a Top 100 Places To Work for five consecutive years, appears in the Global Cleantech 100, and has been recognized as one of the Most Innovative U.S. Energy Companies. Omnidian provides nationwide performance plans and guarantees for residential, commercial, and industrial solar systems through a proprietary machine-learning asset management platform that offers continuous monitoring, proactive service alerts, and field service. The company has launched a similar service for residential and commercial & industrial energy storage and says its software will monitor other IoT-sensored energy products in the future. Proceeds from the recent funding will enable expansion into new asset classes including energy storage, EV charging, and HVAC, and will support international expansion. Omnidian employs more than 100 professionals across 16 states and manages more than 1,700 megawatts for customers. The firm emphasizes lowering cost of ownership and reducing risk for customers while providing performance guarantees that help unlock institutional capital. Omnidian positions its platform as critical infrastructure to accelerate renewable adoption and improve grid resiliency. Omnidian offers continuous monitoring, proactive service alerts, field service and an end-to-end cash-back performance guarantee for residential and C&I solar systems. Its core product is a subscription-backed protection and performance-assurance platform sold directly to homeowners and through an Elite Dealer Program for solar installers. The Elite Dealer Program is offered at $300 for the first year and renewals are available for under $13 per month, enabling dealers to bundle cash-back performance guarantees for cash and loan customers. Omnidian supports multiple Fortune 1000 clients’ residential lease portfolios and is responsible for over 75,000 residential solar systems today. The company plans to use new capital to expand into new geographies including New York and California and to grow its reach to dealers representing over 75% of the U.S. solar market. Omnidian is supported by the DOE SunShot Program and positions its platform as transferable to other IoT consumer-device insurance and premium categories.

Participated · Equity · Dec 2020

GreenCom Networks, founded by Christian Feisst, is a Munich-based energy IoT provider with an office in France that builds a scalable residential home energy management platform. Its software integrates distributed assets including battery storage units, solar PV, heat pumps and electric vehicle chargers to enable services like heating-as-a-service, energy flat rates, flexibility revenue, dynamic tariffs and energy communities. The platform already powers Centrica’s Home Energy Management services in the UK and connects and manages over 3 MW of decentralized energy asset capacity for a smart-city district of nearly 700 apartments in Cologne. The company says it will use the new funding to advance its technology to better digitally connect distributed assets and to expand international growth. GreenCom plans to deepen partnerships with inverter, heat pump and battery manufacturers, particularly to penetrate markets in Asia and drive broader adoption of its IoT platform. GreenCom Networks develops an Energy Information Brokerage Platform (EIBP) that integrates distributed energy assets (solar PV, battery storage, EVs, heat pumps) and enables optimisation and visualisation of home energy flows. The platform makes energy data available to utilities and manufacturers of energy-relevant devices. GreenCom positions its offering around consumer-focused services, describing the customer as the asset of the future and aiming to support a connected, low-carbon energy future. The company has worked with utilities and participated in the Free Electrons accelerator, which led to a deeper collaboration with innogy. Recent investments from innogy Innovation Hub and an earlier capitalisation round involving Centrica signal external utility interest and support for the company’s growth. The article highlights GreenCom’s role in enabling digitalisation and new energy business models for utilities and device makers. GreenCom Networks is a Munich-based home energy IoT provider that offers an Energy Internet of Things (IoT) platform for utilities, energy service companies and OEMs. Led by CEO Christian Feisst, the platform digitally connects and manages distributed energy devices for optimal homeowner usage and integrates assets from a wide range of vendors. It enables new energy services such as power, heat or mobility flat-rates, energy communities and monetization of device flexibility through virtual power plants. The company secured an undisclosed funding round led by Centrica with participation from SET Ventures, Munich Venture Partners and Cosmos. Idan Mor, Centrica Innovation Investment Director, will join GreenCom's supervisory board in conjunction with the investment. GreenCom intends to use the funds to further international expansion of its Energy IoT platform across the European market.