Gravitricity
Gravitricity develops underground gravity energy storage (GraviStore) and underground hydrogen storage (H2FlexiStore) technologies for utilities, grid operators, renewable developers, mining operators, and industrial off-takers seeking long-duration, long-life alternatives to lithium-ion batteries.
- Company typePrivate
- Founded2011
- HeadquartersEdinburgh, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Gravitricity does
Gravitricity is a UK-based energy storage technology developer founded in 2011 and headquartered in Edinburgh, operating two complementary underground storage platforms: GraviStore, a gravity-based energy storage system that raises and lowers thousands of tonnes of mass in mine shafts to store and discharge electricity; and H2FlexiStore, an underground hydrogen storage system using lined rock shafts to contain pressurised hydrogen at scale. The company targets a long-duration energy storage market — claiming 50+ year operational life, sub-1 second response time, ~80% round-trip efficiency, and 97% availability — positioned as an alternative to lithium-ion batteries (10-15 year life) and pumped hydro for grid services, renewable co-location, and industrial decarbonisation use cases.
The company has built its technology base around eight granted patents (first filed 2012), a 250kW grid-connected demonstrator commissioned at Port of Leith in 2021, and a project development database of 300+ candidate sites worldwide. Customer-facing revenue is currently limited to paid feasibility studies (e.g., Geiger Gruppe in Germany, Slovenia thermal plant owner); the broader business model anticipates three streams: managed long-life energy storage infrastructure assets providing index-linked grid services revenue, technology licensing royalties for GraviStore and H2FlexiStore, and engineering/feasibility services. Go-to-market is enterprise field sales targeting utilities, grid operators, renewable developers, mining operators, and energy-intensive industrials, delivered through a network of strategic partnerships with ABB, Baker Hughes, National Gas, Huisman, Arup, and others across Europe, Africa, Asia-Pacific, and the Americas.
Funding has been dominated by UK and Scottish government grants (cumulative ~£2.5 million including Innovate UK, BEIS LODES, BEIS HySupply, Scottish Government, and Ofgem), a £829,000 Crowdcube equity crowdfunding round in 2023, and the company is now pursuing its first institutional investment round. Headcount stands at 15+ skilled employees. With no commercial-scale project deployed and no disclosed revenue, the company sits at pre-commercial inflection, with its near-term value driver being the conversion of feasibility studies and partnerships into first revenue-generating deployments, most notably the planned DIAMO Czechia project.
Gravitricity firmographics
Firmographics- Name
- Gravitricity
- Legal name
- Gravitricity Ltd
- Website
- https://gravitricity.com
- Company type
- Private
- Founded year
- 2011
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Gravitricity develops underground gravity energy storage (GraviStore) and underground hydrogen storage (H2FlexiStore) technologies for utilities, grid operators, renewable developers, mining operators, and industrial off-takers seeking long-duration, long-life alternatives to lithium-ion batteries.
- Ownership category
- akta.pro rank
Gravitricity industry classification
Industry- Product category
- Gravity-Based Energy Storage Systems
- NAICS
- Support Activities for Metal Mining (213114), General Warehousing and Storage (49311)
- SIC
- Cogeneration Services & Small Power Producers (4991)
- akta.pro primary industry
- Gravity & Solid-Mass LDES (Lifted Weight, Rail, Mine-Shaft) (EUAFADAD)
- akta.pro secondary industries
- Lined Rock Caverns (LRC) & Hard-Rock Underground Hydrogen Storage (EUAFAEAF), Hydrogen Storage EPC, Engineering & Construction (Aboveground/Underground Facilities) (EUAFAEAK)
Keywords
Where Gravitricity is headquartered
LocationHeadquarters
- HQ city
- Edinburgh
- HQ country
- United Kingdom
- HQ region
- Europe
Offices2 records
Markets served
Gravitricity business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Technology or R&D, Operations, Infrastructure, Marketing or Sales
Revenue model
- Energy Storage Infrastructure Assets: Long-term infrastructure assets providing index-linked revenue streams alongside renewable assets. Revenue generated from grid services including grid balancing and frequency regulation, co-location with renewables, and energy time-shifting.
- Technology Licensing: Patent-protected technologies licensed to project developers and partners for deployment of GraviStore and H2FlexiStore systems in various jurisdictions.
- Feasibility and Engineering Services: Paid feasibility studies and engineering consultancy services for potential project sites. Examples include paid feasibility study with Geiger Gruppe for Grube Teutschenthal mineral mine in Germany, and paid feasibility study proposal with coal mine and thermal plant owner in Slovenia.
Go-to-market motion1 record
Distribution channels2 records
Marketing channels8 records
Gravitricity product offering
Product offeringCore offering
Gravitricity develops and commercialises two underground energy storage technologies: GraviStore, a gravity-based electricity storage system that raises and lowers thousands of tonnes of mass in existing or purpose-built mine shafts, and H2FlexiStore, a hydrogen storage solution using lined rock shafts for safe, large-scale underground hydrogen containment. The company generates revenue from long-term storage infrastructure assets, technology licensing, and paid engineering feasibility studies for utility, mining, industrial, and renewable energy customers.
Product overview
Gravitricity develops two complementary underground energy storage technology streams: GraviStore (gravity power storage using heavy weights in mine shafts) and H2FlexiStore (hydrogen storage in lined rock shafts). Both technologies leverage underground infrastructure to provide long-life, distributed energy storage solutions as alternatives to lithium-ion batteries, with deployment use cases spanning grid services, renewable co-location, industrial decarbonisation, and energy access applications.
Differentiator
Problem solved
Functional benefit
Brands
- GraviStore: Underground gravity energy storage technology that uses the force of gravity to store electricity by raising heavy weights in mine-shafts. Offers 50+ year life, fast response time, and lower lifetime costs compared to battery alternatives.
- H2FlexiStore
Products and services
- GraviStore Underground gravity energy storage technology that uses the force of gravity to store electricity by raising thousands of tonnes of heavy weights in existing or purpose-built mine shafts and releasing them to generate power on demand. Offers 50+ year life, sub-1 second response time, ~80% round trip efficiency, and flexible energy/power ratio from 15 minutes to 8 hours. Designed for utilities, grid operators, renewable energy developers, mining companies, and industrial operators seeking long-duration, high-cyclability storage.
- H2FlexiStore Underground hydrogen storage technology that uses lined rock-shaft geology to contain pressurised fuel gas, enabling safe, large-scale hydrogen storage close to the point of demand. Scalable to 100 tonnes of H2 per shaft, with 40x smaller footprint and 6x less steel than equivalent above-ground storage for 65 tonnes of hydrogen, and 50+ year life with no cycle limit or degradation. Targets industrial decarbonisation, gas network operators, and green hydrogen production projects.
- Feasibility and Engineering Services Paid feasibility studies and engineering consultancy services assessing candidate sites for GraviStore and H2FlexiStore deployment. Engagements include site characterisation, technical and economic feasibility, and project development support for utilities, mining operators, renewable developers, and industrial customers. Examples include feasibility study with Geiger Gruppe for Grube Teutschenthal mineral mine in Germany and a feasibility study proposal with a coal mine and thermal plant owner in Slovenia.
Quantifiable outcome
- ~80% round trip efficiency
- +5 more outcomes
Companies that use Gravitricity
Customer profileNamed customers4 records
Segments5 records
Ideal customer profiles4 records
Gravitricity technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Gravitricity partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered core, major and minor.
- Baker HughescoreMoU signed to jointly explore commercialisation of H2FlexiStore and GraviStore technologies and accelerate the development of infrastructure-scale energy storage projects. Baker Hughes is a leading technology company in energy services.
- ABBcoreABB and Gravitricity agreed to collaborate on energy storage systems, exploring how hoist technologies can accelerate gravity energy storage systems in former mines. ABB brings expertise in automation and power conversion technologies.
- Geiger GruppemajorPaid feasibility study contracted to investigate storing energy in a decommissioned shaft at the Grube Teutschenthal mineral mine in Germany. Geiger Gruppe operates mining and recycling operations.
- DIAMOcoreMoU signed with Czech state enterprise DIAMO at British Embassy in Prague to progress plans to build world's first underground gravity energy store in a coal mine in Czechia.
- HuismanmajorStrategic partnership with Huisman, an innovative company, for expertise in heavy lift equipment applicable to gravity energy storage systems. Huisman sees great fit between their expertise and Gravitricity's technology.
- VSL Systems UKmajorMoU signed with VSL Systems UK to aid development of pioneering ground engineering solutions for H2FlexiStore underground hydrogen storage technology.
- Panitek IndiamajorPre-feasibility market research study completed as part of collaboration agreement with Panitek India for India market development. Follow-on year-long feasibility study ongoing.
- National GascoreOfgem funding secured alongside National Gas to explore how underground hydrogen storage can support the gas network as it transitions to hydrogen.
- ArupmajorGravitricity and engineering consultancy Arup secured £300,000 grant from BEIS to study feasibility of storing hydrogen in purpose-built underground shafts under Net Zero Innovation Portfolio Low Carbon HySupply 2 Competition.
- Scottish Gas Networks (SGN)minorNon-disclosure agreement in place with Scottish Gas Networks regarding H2FlexiStore development opportunities.
Scale indicators13 records
Recent moves6 records
Expansion highlights6 records
Gravitricity competitors and assessment
Company assessmentEmerging players
- Form Energy: Form Energy develops long-duration battery storage systems targeting 100+ hour discharge durations. While technology is different (electrochemistry vs. gravity), Form Energy targets the same long-duration grid services market where Gravitricity positions GraviStore as a complementary alternative to lithium-ion.
Direct peers
- Highview Power: Highview Power commercialises liquid air (cryogenic) energy storage for grid-scale long-duration applications, with operational utility projects in the UK and elsewhere. It targets the same long-duration grid services customer segment as Gravitricity's GraviStore.
- Energy Vault: Energy Vault develops grid-scale gravity energy storage systems using heavy masses raised and lowered to store and release energy. It is the most direct public competitor to Gravitricity's GraviStore, although its primary architecture uses above-ground tower structures rather than underground mine shafts.
- Quidnet Energy: Quidnet Energy develops subsurface pumped hydro energy storage using below-ground reservoirs to store energy as compressed water. Like Gravitricity, it repurposes underground geology for long-duration storage and targets utility-scale grid applications.
- Hydrostor: Hydrostor develops utility-scale compressed air energy storage (CAES) using underground caverns, with multiple projects in advanced development or operation. It is directly comparable to Gravitricity in leveraging subsurface geology for long-duration energy storage and targeting grid services customers.
- Storelectric: Storelectric is developing large-scale compressed air energy storage using repurposed salt caverns and adiabatic CAES technology. It competes with Gravitricity in the underground long-duration storage category for utility and grid-scale customers.
- Advanced Rail Energy Storage (ARES): ARES developed gravity-based rail energy storage systems that raise heavy masses uphill using surplus electricity and release them to generate power. It is a direct architectural peer to Gravitricity within the gravity-energy-storage category, although Gravitricity's mine-shaft approach differentiates on footprint and infrastructure reuse.
- LightSail Energy: LightSail Energy develops compressed air energy storage with thermal management, targeting grid-scale long-duration storage. It is a technology peer to Gravitricity's underground storage offerings, although it does not rely on existing mine-shaft infrastructure.
Broad incumbents
- Baker Hughes: Baker Hughes is a global energy services and industrial technology company that signed an MoU with Gravitricity in 2024 to commercialise both GraviStore and H2FlexiStore technologies. It is a strategic partner and overlapping competitor in energy storage, hydrogen, and infrastructure-scale energy projects.
- Siemens Energy: Siemens Energy supplies grid-scale energy solutions including turbines, grid technologies, and storage integration. As a broad incumbent in power generation and grid services, it is a comparable counterparty for utilities that Gravitricity targets and competes with indirectly on integrated storage project delivery.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Gravitricity social profiles
Digital presenceGravitricity financial estimates
Financial estimateRevenue estimate
Valuation estimate
Gravitricity leadership team
Management profileNumber of profiles
Profiles19 records
Gravitricity funding detail
Funding detailFunding overview
Funding rounds6 records
Investors3 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Gravitricity M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Gravitricity
What does Gravitricity do?
Gravitricity develops and commercialises two underground energy storage technologies: GraviStore, a gravity-based electricity storage system that raises and lowers thousands of tonnes of mass in existing or purpose-built mine shafts, and H2FlexiStore, a hydrogen storage solution using lined rock shafts for safe, large-scale underground hydrogen containment. The company generates revenue from long-term storage infrastructure assets, technology licensing, and paid engineering feasibility studies for utility, mining, industrial, and renewable energy customers.
Is Gravitricity a public or private company?
Gravitricity is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Gravitricity founded?
Gravitricity was founded in 2011. It employs 11 to 50 people.
Where is Gravitricity based?
Gravitricity is headquartered in Edinburgh, United Kingdom, in the Europe region.
How does Gravitricity make money?
Three revenue lines are on record. Energy Storage Infrastructure Assets are the primary driver. The others are technology Licensing and feasibility and Engineering Services.
Who are Gravitricity's main competitors?
Form Energy is listed as an emerging player. Direct peers are Highview Power, Energy Vault, Quidnet Energy, Hydrostor, Storelectric, Advanced Rail Energy Storage (ARES) and LightSail Energy. Broad incumbents are Baker Hughes and Siemens Energy.
Does Gravitricity have an API?
No public API is recorded for Gravitricity.
What industry is Gravitricity in?
Gravitricity's product category is Gravity-Based Energy Storage Systems. Its primary akta.pro industry code is EUAFADAD, Gravity & Solid-Mass LDES (Lifted Weight, Rail, Mine-Shaft), with a secondary code of EUAFAEAF, Lined Rock Caverns (LRC) & Hard-Rock Underground Hydrogen Storage. Its NAICS code is 213114 and its SIC code is 4991.