Powervault
Powervault Ltd., a London-based company founded in 2012, designed and manufactured all-in-one solar battery storage systems (3kWh–24kWh) and SMARTSTOR™ AI optimization software for UK homeowners and small businesses, distributing exclusively through an MCS-accredited approved installer network before entering administration in December 2025.
- Company typePrivate
- Founded2012
- HeadquartersLondon, United Kingdom
- Headcount1–10
- GTM typeB2B and B2C
- OfferingHardware or Manufacturing
What Powervault does
Powervault Ltd. is a London-based private company, founded in 2012 by Joe Warren under Sustainable Venture Development Partners' backing, that designs and manufactures intelligent solar battery storage systems for the UK residential and small-to-medium business markets. The company was the first to launch an all-in-one home solar battery in the UK (the G100, 2014) and has since iterated through the G200, P3, PVCompact, P4 (2023), and P5 (2024) product generations, with system capacities spanning 3kWh to 24kWh. Its core technology is SMARTSTOR™, an AI-powered prescriptive analytics platform that integrates weather forecasts, learned household usage patterns, and time-of-use tariff data to optimize battery charge/discharge scheduling, alongside a hybrid inverter design and a long-standing R&D focus on second-life EV battery integration.
The business model combines one-time hardware sales (P5, P4, PVCompact units) with an emerging subscription layer (SMARTSTOR / Powervault Plus). Distribution runs exclusively through a nationwide network of MCS-accredited approved installers — the company does not sell direct to end-users but qualifies leads and routes them to the network. Customer mix is dominated by UK homeowners with existing solar PV systems seeking to maximize self-consumption, supplemented by SMEs in agriculture (dairy/arable farms), leisure (Forest Green Rovers, Atlantic Racquet Centre), recycling, and community energy projects. The company also positioned itself as a standards shaper, contributing to PAS 63100 (battery fire safety) and lobbying successfully for a UK 0% VAT exemption on retrofitted battery storage from February 2024.
Powervault raised over £10 million cumulatively across equity, debt (including a £725,000 GLIF growth loan and £3.1 million Future Fund convertible loan notes), a £3.8 million scale-up equity round in February 2023 led by Green Angel Syndicate, and earlier Crowdcube and Climate Change Fund rounds. Following a £2.5 million loss in 2024 and sustained pressure from cheaper Chinese-imported alternatives, the company entered administration on 3 December 2025.
Powervault firmographics
Firmographics- Name
- Powervault
- Legal name
- Powervault Ltd.
- Website
- https://powervault.co.uk
- Company type
- Private
- Founded year
- 2012
- Operating status
- Closed
- Headcount range
- 1–10 employees
- Short description
- Powervault Ltd., a London-based company founded in 2012, designed and manufactured all-in-one solar battery storage systems (3kWh–24kWh) and SMARTSTOR™ AI optimization software for UK homeowners and small businesses, distributing exclusively through an MCS-accredited approved installer network before entering administration in December 2025.
- Ownership category
- akta.pro rank
Powervault industry classification
Industry- Product category
- Solar Battery Storage Systems
- NAICS
- Battery Manufacturing (33591)
- SIC
- Switchgear & Switchboard Apparatus (3613)
- akta.pro primary industry
- Home Energy & EV Charging (HEMS, Smart Meters, Batteries, Chargers) (HSAPAQAF)
- akta.pro secondary industries
- Renewable Distributed Generation (Rooftop/Onsite Solar, Small Wind, Small Hydro) (EUACALAJ), Solar Inverters, Power Optimizers & MLPE Manufacturing (EUAMAHAB)
Keywords
Where Powervault is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Powervault business model
Business model- GTM type
- B2B and B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Technology or R&D, Personnel, Marketing or Sales, Operations, Infrastructure
Revenue model
- Battery Hardware Sales: One-time sale of solar battery storage systems (P5, P4, PVCompact models) to homeowners and businesses through installer network. Products include various capacity options from 3kWh to 24kWh.
- SMARTSTOR™ Plus Subscription: Optional subscription service for access to SMARTSTOR™ AI-powered energy management software for ongoing optimization of battery usage.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Multi-year contract | Powervault P5 - All-in-one solar and battery storage system |
| Unit Pricing | Multi-year contract | PVCompact - Compact wall-mounted design |
| Unit Pricing | Multi-year contract | P4 - AI-powered home energy storage |
Go-to-market motion2 records
Distribution channels1 record
Marketing channels7 records
Powervault product offering
Product offeringCore offering
Powervault designs, manufactures and supplies plug-and-play modular solar battery storage systems (3kWh to 24kWh) for UK residential and commercial customers. Core products include the P5 all-in-one solar-plus-storage system, P4 AI-powered battery, and PVCompact wall-mounted unit, sold through a nationwide MCS-accredited installer network. The company's proprietary SMARTSTOR™ AI energy management software is sold as an add-on subscription to automate and optimize battery charge/discharge cycles based on usage patterns, weather forecasts, and time-of-use tariffs.
Product overview
Powervault is a UK-based green energy technology company that designs and manufactures intelligent solar battery storage systems for homes and businesses. The product portfolio includes multiple generations of all-in-one solar battery systems: the G100 (first generation, 2014), G200 (second generation, 2016), P3 (third generation, 2018), PVCompact (2022 — compact wall-mounted), P4 (fourth generation, 2023 — AI-powered), and P5 (2024 — first fully-integrated all-in-one). The system lineup ranges from 3kWh to 24kWh capacities. Powervault's proprietary AI-powered SMARTSTOR energy management software optimizes battery storage in real time by learning energy usage patterns, scanning weather forecasts, and integrating with time-of-use tariffs. Complementary software includes the Powervault Portal (web-based energy monitoring), the Installer App (commissioning tool), and the Customer App (coming soon). The full ecosystem is supported by a nationwide network of MCS-accredited approved installers.
Differentiator
Problem solved
Functional benefit
Brands
- SMARTSTOR™: Energy management software platform for Powervault home battery systems.
- P5
- P4
- PVCompact
Products and services
- Powervault P5 Powervault P5 is a fully-integrated all-in-one solar and battery storage system designed for UK residential and commercial customers. Features include IP65 outdoor-rated enclosure, hybrid inverter (3.6kW or 6kW), modular design, and 150% solar oversizing capability. Sold through the company's approved installer network.
- Powervault P4 Powervault P4 is an AI-powered modular battery storage system for UK homes and commercial buildings, offered in five AC capacities (8kWh, 12kWh, 16kWh, 20kWh, 24kWh). Compatible with solar PV and wind turbine systems, all-in-one wall-mounted design with SMARTSTOR™ AI software and emergency power supply options.
- Powervault PVCompact Powervault PVCompact is a compact wall-mounted all-in-one solar battery storage system available in 3kWh, 4kWh, 6kWh and 8kWh AC usable capacities. It was the first Powervault product to feature SMARTSTOR™ AI energy management and includes an emergency power socket option plus LED status display. Sold through Powervault approved installers.
- SMARTSTOR™ Plus subscription (Powervault Plus) SMARTSTOR™ Plus (Powervault Plus) is a recurring subscription that gives existing Powervault battery owners access to the AI-powered SMARTSTOR™ energy management software. The software automatically optimizes battery charge/discharge based on learned usage patterns, weather forecasts, and time-of-use tariff data, with claimed savings of approximately 40% more than manual battery configuration.
Quantifiable outcome
- Saves up to 90% more on electricity bills compared to simple battery storage
- +4 more outcomes
Companies that use Powervault
Customer profileNamed customers10 records
Segments3 records
Ideal customer profiles3 records
Powervault technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration8 records
AI capability3 records
Feature7 records
Powervault partnerships and signals
Strategic signalPartnerships
Eleven partnerships are on record, tiered notable, core, flagship and minor.
- VoltalisnotableLaunch of consumer-led energy flexibility solution to unlock extra household savings. Powervault and Voltalis collaborating on demand response technology.
- Alto EnergycoreAffiliate partnership enabling customers access to associated technology of trusted UK suppliers. Alto Energy is a leading supplier of ground and air source heat pumps.
- Forest Green RoversflagshipPartnership to deliver world's most environmentally friendly stadium digital platform. Three Powervaults power LED screens from solar and wind-generated renewable energy at The New Lawn stadium.
- Schneider Electric / Sustainable VenturesnotableNet Zero Home Programme finalists. Joint programme to find innovative net zero home solutions. Powervault recognized as enabling households to store solar energy, cut bills, and support the grid.
- EDFcoreGrid flexibility partnership using EDF's Powershift platform to optimize Powervault batteries for demand flexibility services. Enables domestic batteries to provide grid services while allowing customers to save money.
- Octopus EnergycoreIntegration partnership to enhance smart tariff benefits. Powervault 3 integrates with Octopus Agile tariff and adds smart hot water heater controls using IoT technology. Automatically ensures hot water is heated and batteries charged at most economic hours.
- Autograph HomesnotablePartnership allows customers at Haw Wood development to fit Powervault systems as an option upon purchase, free of VAT.
- GMECcoreRegional installer partner specializing in solar and storage installations. Completed installations for Atlantic Racquet Centre and Tawmix Recycling.
- Mitchell & DickinsonminorPartnership with period home insulation specialist. Companies share values of decency, quality and excellence for helping customers reduce energy waste.
- JXTG Nippon Oil and Energy CorporationnotableReceived order from Japan's major energy utility for study on virtual power plants and second-life batteries. Sharing UK market expertise for solutions applicable in Japan.
- National GridnotablePart of cross-industry coalition led by Powervault through REA working group, signed by over 30 industry players including National Grid, calling for fair VAT treatment for home energy storage.
Scale indicators6 records
Recent moves7 records
Expansion highlights6 records
Powervault competitors and assessment
Company assessmentMarket position
Strengths1 record
Competitive moat4 records
Key risks7 records
Key highlights7 records
Customer concentration
Powervault social profiles
Digital presencePowervault compliance and trust
Trust signalCompliance2 records
Powervault financial estimates
Financial estimateRevenue estimate
Valuation estimate
Powervault leadership team
Management profileNumber of profiles
Profiles6 records
Powervault funding detail
Funding detailFunding overview
Funding rounds7 records
Investors8 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Powervault 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 Powervault
What does Powervault do?
Powervault designs, manufactures and supplies plug-and-play modular solar battery storage systems (3kWh to 24kWh) for UK residential and commercial customers. Core products include the P5 all-in-one solar-plus-storage system, P4 AI-powered battery, and PVCompact wall-mounted unit, sold through a nationwide MCS-accredited installer network. The company's proprietary SMARTSTOR™ AI energy management software is sold as an add-on subscription to automate and optimize battery charge/discharge cycles based on usage patterns, weather forecasts, and time-of-use tariffs.
Is Powervault a public or private company?
Powervault is a private company. It is classified as venture growth investor backed and is currently closed.
When was Powervault founded?
Powervault was founded in 2012. It employs 1 to 10 people.
Where is Powervault based?
Powervault is headquartered in London, United Kingdom, in the Europe region.
How does Powervault make money?
Two revenue lines are on record. Battery Hardware Sales are the primary driver. The others are SMARTSTOR™ Plus Subscription.
Does Powervault have an API?
Yes. Powervault offers an API key (for a modest subscription fee) that enables integration with third-party energy monitoring systems and smart home platforms. The API provides access to energy consumption, generation, battery charge/discharge data. Users need programming knowledge to utilize the API as technical support is not offered.
What industry is Powervault in?
Powervault's product category is Solar Battery Storage Systems. Its primary akta.pro industry code is HSAPAQAF, Home Energy & EV Charging (HEMS, Smart Meters, Batteries, Chargers), with a secondary code of EUACALAJ, Renewable Distributed Generation (Rooftop/Onsite Solar, Small Wind, Small Hydro). Its NAICS code is 33591 and its SIC code is 3613.