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Powering our world costs a lot of money, so it’s no surprise that many new companies are looking to leverage technology to revolutionize the way we store the power generated by wind, water, sun, and other power generation methods.

This space is booming, as energy storage companies create ways to save energy and to save money by using stored energy when oil prices go up. This provides useful insurance against rising energy costs.

Here are 25 companies that are changing our future with energy storage.

Advanced Microgrid Solutions

Advanced Microgrid Solutions puts energy storage systems into buildings to provide grid support for utility companies. The company describes itself as “technology agnostic,” leaving it free to choose and integrate the best software and energy storage technology into systems that suit particular needs. In doing this, they create hybrid electric buildings that cut costs for property owners and reduce load for energy utilities.


Unlike other energy storage companies, Ambri uses a proprietary liquid metal battery where all components remain in liquid form. The liquid design increases battery component lifespan, and the battery has no emissions and no moving parts. The self-heating battery can store up to 12 hours of energy and can be connected to others in a modular system. The company says its system makes it easier to manage and integrate renewable energy sources, and to get power to even hard-to-reach locations.

Aquion Energy

Aquion Energy makes saltwater batteries that it says outperform traditional batteries. The batteries are environmentally friendly and are available in a range of configurations. They are suitable for residential applications, off-grid energy storage, energy management for large buildings as well as grid-based applications. The batteries allow users to shift energy use to off-peak times and can provide an uninterruptible power supply (UPS) in case of outages.


Brammo uses lithium-ion technology to provide lightweight batteries for electric vehicles that deliver power with a fraction of the weight requirement of regular batteries. The company is also committed to the development of electric vehicles for motorsports and builds electric racing bikes.

CODA Energy

CODA Energy supplies scalable energy storage solutions. Its systems are based on an energy storage tower that leverages the company’s expertise in lithium-ion battery creation and combines this with battery and temperature regulation systems and a tailored operating system. The system is scalable and can integrate different inverter technologies. It enables load shifting and cost reduction and can be integrated with renewable energy sources.


Doblet offers a different kind of energy storage, aimed at consumers looking to recharge their devices. The company has an app that brings together a network of connected charging points. Just check to see where your nearest charging station is, ask for a Doblet and recharge.

Energy Storage Systems

Energy Storage Systems uses a non-toxic iron electrolyte with its own flow battery design to improve distributed power generation. The company says its technology will help with both retail energy management and the integration of renewables into utility grids.



Using technology created by NASA, Enervault‘s megawatt-hour scale energy storage systems allow energy suppliers to integrate renewable energy sources into their systems and to reduce energy costs for both off-grid and grid-connected customers. The iron-chromium redox flow battery can also be used for commercial and industrial applications. The technology is currently in use on a California almond farm that uses stored energy to power its irrigation system.

Fenix International

If you’re looking for solar to go, then Fenix International is the place to start. The company has developed the ReadySet solar-powered battery kit, which captures solar energy and stores it so you can use it to charge your devices wherever you go. This technology was designed for use in Africa but is available in the US and Canada. It only takes six hours of direct sunlight to charge it, though it can also be plugged in on cloudy days.

FreeWire Technologies

FreeWire’s Mobi Chargers provide electric vehicle charging on the go. The mobile chargers mean there’s no need for providers to construct expensive charging stations, and they can recharge the mobile chargers at off-peak times overnight so they are ready for use the next day. That leads to a significant cost reduction for those providing EV charging services. Consumers also benefit, as there’s no need to wait for a particular charging space to be available; chargers can be brought wherever the vehicle is parked.


GBatteries aims to help the world move toward sustainable energy storage. Its BatteryOS software tracks battery performance and is now available in its BatteryBox portable charging station. The idea is to gather more information on how batteries work in order to continue to improve the technology.


If you’re looking for a way to design, link and run energy storage systems, GELI is a good place to start. It has a hardware-agnostic platform that uses apps and its own software to help companies design and run energy storage and microgrid systems. It combines power systems, smart grids, distributed power generation and other technologies to create resilient, energy-efficient systems.

Green Charge Networks

Green Charge Networks aims to reduce energy costs for end customers by bringing down the cost of demand charges levied by power companies. The system works by tracking energy usage and working out when the peaks and troughs are, then managing the system to reduce the charges. Green Charge installs its free Green Station to manage this process. The system integrates renewable energy sources and includes charging facilities for electric vehicles.

H2 Industries

H2 Industries uses LOHC energy storage technology to allow safe storage of unlimited amounts of energy. This energy can be stored in the company’s storage racks and blocks in modular configurations. The company says this makes it possible to use renewable energy sources reliably 24 hours a day.


Halotechnics is involved in the development of energy storage solutions to help provide renewable energy to the world. Its molten salt energy storage technology stores electrical energy in the form of heat, then uses available technology to convert this into electricity. The company says this storage method costs 50% less than battery storage, and storage output is from four to 12 hours.


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Ice Energy

Energy storage projects don’t come cooler than Ice Energy — literally! This innovative company addresses the costly matter of air-conditioning for commercial buildings. The Ice Bear storage system makes ice at night during off-peak hours, and then replaces the AC compressor unit during peak daytime use to deliver cool air to the building for up to six hours. This reduces overall energy consumption for the building. This eco-friendly technology has already logged more than 31 million hours of successful operation.

Imergy Power Systems

Imergy aims to change the world by reducing dependence on carbon-based energy. It has an energy storage platform that integrates renewable sources and is scalable for anything from residential to commercial use. The system stores power during off-peak hours and releases it during peak hours to save costs, and can serve as a backup energy source in the event of a power outage. The system also works for grid storage and meeting the needs of telecom service providers.

MicroGen Systems Inc.

MicroGen Systems Inc. uses micro-power sources based on its proprietary piezoelectric vibrational energy harvester (PZEH) system to extend the life of rechargeable batteries. The devices convert mechanical vibrations to energy that is stored for later reuse.

Molecular Synthetics

This energy storage technology sounds like science fiction, but it isn’t, as many of the proofs of these concepts already exist. Molecular Synthetics is attempting to use matter-antimatter technology with the aim of replacing all carbon fuel and current renewable energy sources. This is one to watch.


Relectrify has developed battery management technology to get more from used rechargeable batteries. Instead of seeing these as waste, the company is integrating them into energy storage systems. The aim is to help homes and businesses store more energy and reduce energy costs.

Solar Grid Storage

Solar Grid Storage, now part of SunEdison, provides energy storage as a service, co-locating its battery storage systems with photovoltaic solar panels but managing them separately. It allows solar power providers to offer their services without the need to purchase power inverters. The system offers grid balancing and some protection against power outages.



Stem combines software with energy storage to help businesses save money on energy costs. The company’s PowerStore energy storage system automatically pulls in energy when costs are lowest and deploys stored energy when costs are highest. To make this happen, Stem has a software system that includes real-time monitoring of energy use, forecasting of usage patterns and automatic deployment of energy-saving technology.


The Sunverge Solar Integration System (SIS) uses cloud-based software to collect solar energy from a variety of sources, store that energy in batteries and deploy it when needed. The SIS units can be installed in homes and businesses then connected to the grid. The system automatically brings electricity costs down. When several systems are installed on the grid, power can be aggregated and distributed as needed anywhere on the grid.


Voltaiq provides predictive analytics for batteries, monitoring battery performance so that companies operating in this market can better understand how the technology behaves. This provides easy access to battery data, allowing companies to easily see where they can optimize performance.


Designed for home use, VoltStorage uses based vanadium-redox-flow cells to store solar energy during the day to power residences at night, when most electricity is used. The cells use purified water, and the unit has a 25-year life. This eco-friendly unit will also cut your energy bills.