Frequently Asked Questions
These are the most commonly asked questions about our company. If you can’t find an answer to your question, please Contact Us.
About Highview
Highview is a UK-based energy infrastructure company that delivers large-scale energy storage and grid stability solutions worldwide. It leverages its proprietary R2X analytics platform and an integrated portfolio of leading technologies to support the global shift to clean, reliable, and affordable power systems.
Highview develops, finances, builds, and operates large-scale energy infrastructure assets. It leverages unique insight from its proprietary R2X analytics platform to forecast demand and identify future system requirements. It integrates innovative technology platforms to address the full spectrum of power system needs, from renewable integration and long-duration storage to voltage control, inertia, and black start capability. And it orchestrates strategic capital to enable and accelerate development.
Highview aims to be a critical enabler of the energy transition by delivering holistic, technology-agnostic infrastructure solutions at grid scale. It uses its R2X analytics platform to identify optimal locations, configurations, and technologies for new assets. It integrates innovative technologies to deliver flexibility, resilience, and cost efficiency. And it applies a capital-efficient financing model, combining asset ownership, capital recycling, and licensing, to build out projects rapidly and deliver high-returning, long-life infrastructure. This approach ensures its solutions are technically optimised, commercially resilient, and capable of unlocking maximum value for customers and investors.
Highview brings a unique value proposition to the global energy sector: it is not simply a technology provider, but a systems architect and long-term partner in the energy transition.
By uniting deep power systems insight, proprietary analytics, and proven infrastructure delivery, Highview designs and operates assets that address multiple challenges simultaneously, from renewable integration and grid stability to investment mobilisation and long-term resilience.
R2X is Highview’s proprietary power systems analytics platform. It models energy grids with incredible precision, forecasting future needs, identifying optimal solutions, and directing the deployment of new assets to maximize value and resilience.
Highview’s liquid air energy storage (LAES) system is a proprietary technology that stores energy by cooling and liquefying ambient air. It provides long-duration storage, synchronous stability, and other grid services, offering a clean, flexible, and locatable solution for integrating renewables.
Highview raises and deploys strategic investment by identifying high-potential projects using its R2X analytics platform, which reduces investor risk through precise planning and location. It then attracts diverse investors. aligning project goals with their financial interests and demonstrating a clear path to value. This enables Highview to orchestrate capital, accelerating project development.
Highview provides a full suite of grid stability and resilience services including synchronous stability, voltage control, constraint management, fast response, black start capability, and reactive power, all from zero-carbon sources.
Highview’s Millennium Series is its next-generation, multi-technology platform for long-duration energy storage and grid stability. It is the world's most advanced energy flexibility solution, combining multiple grid-scale technologies within a small, highly locatable footprint.
Highview’s flagship UK projects include our Carrington plant in Manchester, which will be the world's largest commercial-scale liquid air LDES and grid stability platform, Phase 1 of which will be operational from 2026, and our Hunterston Millennium Series facility in North Ayrshire, Scotland, due to provide stability services to the grid from 2027, followed by the development of multi-technology storage capacity, combining liquid air storage and lithium-ion batteries.
Highview is developing projects in Australia, including base-load renewable energy power stations in Gladstone, Darwin-Katherine, and Townsville. Highview's partner Sumitomo Heavy Industries (SHI), together with Hiroshima Gas, is also developing a grid-scale LAES demonstration plant in Hiroshima, Japan.
Highview supports the energy transition by delivering integrated, systems level energy solutions that make clean power more reliable, flexible, and affordable. The company uses its proprietary R2X analytics platform to identify the need for, and develop advanced infrastructure assets to address multiple grid challenges in a single, sustainable platform.
About Long Duration Energy Storage
Long duration energy storage (LDES) refers to technologies that can store electricity for extended periods, typically from 8+ hours to days or even weeks and then dispatch it back to the grid when needed.
LDES is crucial for the energy transition because it enables the reliable integration of intermittent renewable energy sources like wind and solar, reduces reliance on fossil fuels for grid balancing, and enhances energy security by providing dispatchable power.
LDES helps integrate renewable energy by capturing excess generation during periods of high renewable output and releasing it when demand is high or renewable generation is low, thereby reducing curtailment and ensuring continuous clean power supply.
The main types of LDES technologies include Liquid Air Energy Storage (LAES), pumped hydro, compressed air energy storage (CAES), and various forms of thermal and chemical storage.
LDES typically stores energy for much longer durations (8+ hours to weeks) compared to short-duration battery storage (up to 4 hours). LDES is designed for grid balancing over extended periods, while short-duration batteries are often used for rapid response and peak shaving.
LDES plays a critical role in achieving net zero by enabling grids to operate with a very high penetration of renewable energy, providing the necessary flexibility and resilience to replace fossil fuel-based generation and ensure 24/7 clean power availability.
About Liquid Air Energy Storage
Liquid Air Energy Storage (LAES) is a technology that stores energy by cooling and liquefying ambient air, then storing it in insulated tanks. When power is needed, the liquid air is expanded to drive a turbine and generate electricity.
Yes, Highview is developing significant Liquid Air Energy Storage projects. Its Carrington plant in Manchester, UK, is currently under construction and will be the world's largest commercial-scale LAES plant. Hunterston, in Scotland, is also in development as Highview's first Millennium Series facility, which will integrate LAES as part of its multi-technology solution.
LAES works by using renewable energy to compress and cool air until it liquefies. This liquid air is stored at low pressure. To generate power, the liquid air is heated and expanded, driving a turbine that produces electricity.
LAES offers advantages such as long-duration storage (hours to weeks), no degradation from constant cycling, a 40- to 50-year operational life, full locatability, and the ability to provide grid stability services simultaneously with energy storage.
Liquid Air Energy Storage can store energy for extended periods, ranging from six hours up to several weeks, with minimal degradation, making it suitable for long-duration energy shifting and seasonal balancing.
About Grid Stability and Flexibility
Grid stability services are essential functions that maintain the reliable and secure operation of an electricity grid, including managing frequency, voltage, and power flows, that are especially valuable as intermittent renewable energy sources increase.
Grid stability services are crucial for renewable integration because intermittent sources like wind and solar can cause fluctuations. These services ensure the grid remains balanced and reliable, preventing blackouts and enabling higher renewable penetration.
Energy storage can provide grid stability by rapidly injecting or absorbing power to manage frequency and voltage fluctuations, offering inertia, and providing black start capabilities, thereby replacing traditional fossil fuel-based grid support.
Synchronous inertia is the resistance of a rotating mass (like a traditional generator or a synchronous compensator) to changes in speed. It matters because it helps stabilize grid frequency following sudden changes in supply or demand, preventing rapid frequency drops.
Dynamic voltage support is the ability of a system to rapidly inject or absorb reactive power to maintain stable voltage levels on the grid, especially during disturbances or changes in load, preventing voltage sags or swells.
Highview delivers both energy storage and grid stability from the same plant by integrating its proprietary LAES technology with advanced grid support systems. This allows the plant to store and dispatch energy while simultaneously providing essential services like synchronous inertia and voltage control.
About Highview Projects
The Carrington facility in Manchester is Highview’s first commercial-scale liquid air, long-duration energy storage and grid stability plant. Phase 1, grid stabilisation services will be operational from 2026. Once complete it will provide 300 MWh of storage and 50 MW output for six hours, serving approximately 480,000 homes.
The Hunterston facility in North Ayrshire, Scotland, will be Highview’s first Millennium Series plant and the world’s most advanced LDES and grid stability platform. It will combine grid stabilisation services with 3.2 GWh of storage, powering approximately 650,000 homes for up to 12.5 hours, using a multi-technology solution. Phase 1 grid stability capabilities will be operational from 2027.
Highview is developing a series of base‑load renewable energy power stations in Australia, with planning now underway for three major programmes. In Gladstone, Central Queensland, and Townsville, North Queensland, we are progressing large scale projects combining LDES and short-term battery storage. On the Darwin–Katherine network in the Northern Territory, plans are advancing for an integrated scheme incorporating solar generation, LDES and battery.