Arenko Group
Arenko Group operates the Nimbus AI platform, providing software that automates trading, control, and performance optimization for grid-scale battery storage and co-located renewable assets. It serves enterprise customers including listed energy storage funds, utilities, and electricity market participants across the UK, US, Germany, and Ireland.
- Company typePrivate
- Founded2014
- HeadquartersLondon, United Kingdom
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Arenko Group does
Arenko Group is a London-based software company that operates the Nimbus platform, an AI-enabled system for optimizing grid-scale battery energy storage and co-located renewable assets. Founded in 2014 by Rupert Newland as an energy storage developer and operator, the company sold its 41MW Bloxwich battery asset to Gresham House Energy Storage Fund for £20.1 million in 2020 and pivoted to a pure-play software-as-a-service model. The Nimbus product suite comprises three modules: Nimbus-Asset (on-site hardware and cloud software for asset control with high-resolution telemetry and scheduling APIs), Nimbus-Trade (fully automated 24/7 trading software integrating wholesale exchanges, frequency response markets, Balancing Mechanism and reserve markets), and Nimbus-Performance (passive asset management with predictive ML insights, warranty management and component benchmarking). The platform processes approximately 5 billion data points daily and runs millions of optimization simulations per day.
Arenko generates revenue through enterprise software subscriptions and managed services (Route to Market), sold primarily to battery storage asset owners, listed energy storage funds, utilities, and electricity market participants. Bespoke contracts are priced based on portfolio size and service scope, with monthly billing and a target asset base ranging from 10MW to 50MW+ per deployment. The customer roster includes Gore Street Energy Storage Fund (~500MW across 18 projects), Gresham House (~500MW), Vattenfall, RWE, Ørsted, ElectroRoute (Mitsubishi Corporation), Varco Energy, Foresight Group, and Smart Metering Systems. Following a £9 million growth capital raise from Hico Investment Group in May 2025, Arenko expanded internationally into the US (three Texas projects), Germany and Ireland, and reported £30 million of revenue for FY2024. The company holds ISO 27001 certification and is a graduate of the AWS Clean Energy Accelerator 3.0 program.
Arenko Group firmographics
Firmographics- Name
- Arenko Group
- Legal name
- Arenko Cleantech Limited
- Website
- https://arenko.group
- Company type
- Private
- Founded year
- 2014
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Arenko Group operates the Nimbus AI platform, providing software that automates trading, control, and performance optimization for grid-scale battery storage and co-located renewable assets. It serves enterprise customers including listed energy storage funds, utilities, and electricity market participants across the UK, US, Germany, and Ireland.
- Ownership category
- akta.pro rank
Where Arenko Group is headquartered
LocationHeadquarters
- HQ city
- London
- HQ country
- United Kingdom
- HQ region
- Europe
Offices1 record
Markets served
Arenko Group business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Personnel, Operations, Marketing or Sales, Infrastructure
Revenue model
- Software Licensing & SaaS: Enterprise software licensing model providing access to Nimbus platform modules (Asset, Trade, Performance). Revenue derived from software subscriptions and service contracts with asset owners and operators managing grid-scale battery storage systems. Contracts cover optimization of assets ranging from 10MW to 50MW+ portfolios.
- Route to Market Services: End-to-end trade optimization and automated dispatch services. Includes on-site hardware provision, market registration support, dedicated trading desk services, and account management. Monthly invoicing and payment structure.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Enterprise software contracts with bespoke pricing |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels6 records
Arenko Group product offering
Product offeringCore offering
Arenko sells the Nimbus software platform — an AI-enabled, modular SaaS suite that connects, controls, and optimizes grid-scale battery energy storage assets and co-located hybrid renewable-plus-storage assets. The platform combines on-site hardware (Iris), cloud software for asset control and high-resolution telemetry (Nimbus-Asset), fully automated end-to-end multi-market trading (Nimbus-Trade), and automated passive asset management with ML-driven performance insights (Nimbus-Performance). Arenko also delivers a managed "Route to Market" service built on the Nimbus platform.
Product overview
Arenko offers a modular platform-plus-products architecture called the Nimbus product suite. The core Nimbus Platform provides the foundational technology connecting and optimising battery storage assets using automation, AI, enhanced analytics and deep-learning algorithms. Three named products extend from this platform: Nimbus-Asset (hardware and cloud software for asset control and data), Nimbus-Trade (automated trading software for end-to-end trading and dispatch), and Nimbus-Performance (add-on module for automated asset management and analytics). The Route to Market service provides managed trading operations using the Nimbus software. The platform processes approximately five billion data points daily and enables trading desks, utilities and asset owners to maximise revenues through autonomous data-driven decision-making.
Differentiator
Problem solved
Functional benefit
Brands
- Nimbus: AI-enabled software platform for energy storage asset control, trading, and performance management. Includes Nimbus-Asset (hardware and cloud software for asset control), Nimbus-Trade (automated trading software), and Nimbus-Performance (automated passive asset management).
Products and services
- Nimbus-Asset Hardware and cloud software providing intelligent and flexible control of energy storage assets. Combines on-site Iris hardware for control, communication, and data gathering with cloud software offering high-resolution 20Hz telemetry, power quality metering, asset alerts, and a full suite of power, energy, and response profile scheduling APIs. Targeted at battery storage asset owners and operators.
- Nimbus-Trade Fully automated end-to-end trading software for energy storage and renewable assets. Enables 24/7 autonomous trading with automated bid/offer generation, asset scheduling, automated dispatch, and trading around asset and market outages. Integrates with wholesale exchanges, frequency response markets, Balancing Mechanism, and reserve markets, with ML predictions for each market and a Live P&L dashboard.
- Nimbus-Performance Automated, passive asset management software providing 360-degree integrations across asset control, monitoring, and trading. Delivers real-time performance KPIs, machine learning predictive insights, technical vs. financial impact analysis, and component and manufacturer benchmarking with configurable alerts and rapid diagnostics. Targeted at owners of distributed energy portfolios seeking enhanced availability, extended asset life, and accelerated issue resolution.
- Route to Market End-to-end asset optimization and trading service for energy storage assets. Includes on-site hardware for deep asset integration (Iris), market registration and pre-qualification support, full trading services via Arenko's dedicated trading desk, automated dispatch, and monthly invoicing and payment. Targeted at asset owners and electricity market participants who want managed trading operations rather than pure software.
Quantifiable outcome
- Sites using Nimbus improve earnings by average of 21%
- +7 more outcomes
Companies that use Arenko Group
Customer profileNamed customers9 records
Segments4 records
Ideal customer profiles4 records
Arenko Group technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability7 records
Feature4 records
Arenko Group partnerships and signals
Strategic signalPartnerships
Twelve partnerships are on record, tiered core and flagship.
- Mark FutyancoreIndustry veteran appointed as new Chair of Arenko Group, bringing extensive energy sector governance experience.
- ElectroRoute (Mitsubishi Corporation)coreElectroRoute selected Arenko's Nimbus software to support entry to the UK BESS market. ElectroRoute is a renewable energy trading company and subsidiary of Mitsubishi Corporation.
- ØrstedcoreNew contract win for Arenko to use proprietary Nimbus software to optimize Ørsted's energy storage assets.
- RWEflagshipSoftware framework agreement with first orders for Nimbus Trade integration covering RWE's portfolio of UK's most advanced hybrid solar farms. Expanded in 2026 with three additional UK solar-plus-storage sites.
- Gore Street Energy Storage FundflagshipMajor software contract covering 18 battery projects totaling nearly 500MW across US, UK, and Europe. Arenko provides Nimbus software platform for optimization and route-to-market services.
- Varco EnergycoreNimbus Performance software deal covering nearly 160MW/377MWh of battery storage assets. Major contract win for asset management and trading optimization.
- Smart Metering Systems (SMS)coreExpanded 10-year software partnership agreement extending scope of collaboration between Arenko and SMS.
- Foresight GroupcoreAgreement to optimize 50MW Sandridge energy storage asset using end-to-end trade optimization and automated dispatch software.
- VattenfallcoreTrading optimization services agreement for 22MW/16MWh battery co-located at 228MW Pen y Cymoedd Wind Farm in South Wales. Expanded to second 20MW/45.5MWh battery project in Northumberland.
- Gore Street Energy Storage FundflagshipInitial 10MW asset onboarded to Arenko's AI-driven automated software platform. Gore Street is a leading listed energy storage investor with significant portfolio expansion planned.
- Gresham House Energy Storage FundflagshipBegan relationship in 2020 following acquisition of Arenko's 41MW Bloxwich battery. Expanded to optimization contracts for 500MW+ portfolio including Byers Brae and multiple new utility-scale batteries. Arenko continues to optimize Bloxwich post-acquisition.
- GE (General Electric)coreStrategic alliance to build grid-scale energy storage systems in UK. GE provides battery technology solution, power electronics, and advanced controls; Arenko provides operating expertise and proprietary trading software. First project was 41MW Bloxwich battery, one of UK's largest.
Scale indicators11 records
Recent moves10 records
Expansion highlights5 records
Arenko Group competitors and assessment
Company assessmentEmerging players
- Piclo: Piclo operates a flexibility market platform connecting DERs and storage to grid services in the UK and internationally. It is an emerging player peer in the flexibility/optimization ecosystem with overlapping customers (DSOs, asset owners) though focused on matching rather than trading.
- EnergyHub: EnergyHub is a DERMS platform that orchestrates distributed energy resources including residential and commercial battery storage. It is an emerging player peer in asset orchestration software, though primarily US-focused and oriented toward VPP aggregation rather than wholesale trading.
Direct peers
- Modo Energy: Modo Energy provides market intelligence, revenue benchmarking, and analytics for battery storage and flexibility assets across European power markets. It is a direct peer because both companies operate in UK BESS market analytics and address overlapping buyer personas (storage funds, asset owners, traders).
- GridBeyond: GridBeyond provides an AI-powered energy optimization platform (GridX) targeting industrial sites, battery storage, and distributed energy resources for revenue stacking across multiple markets. It is a direct peer in offering optimization software for storage assets in the UK and Ireland and competing for the same enterprise procurement cycles.
- Flexitricity: Flexitricity is a UK demand-side response and flexibility aggregator that optimizes distributed energy assets (including batteries) across National Grid services. It is a direct peer in UK flexibility market participation and competing for utility/storage flexibility contracts.
- Pexapark: Pexapark offers a renewable energy asset optimization and PPA price benchmarking platform used by wind, solar, and storage developers and owners. It is a direct peer in software-driven revenue optimization and risk management for renewable-plus-storage portfolios, particularly in European markets.
- Kiwi Power (Engie): Kiwi Power (now part of ENGIE) provides demand response, flexibility aggregation, and battery optimization services across UK and European markets. It is a direct peer in optimizing distributed and grid-scale storage assets for ancillary services and balancing mechanism revenues.
- Tesla (Autobidder): Tesla's Autobidder platform provides AI-driven energy trading and optimization for battery and renewable assets, including real-time bidding into wholesale and ancillary service markets. It is a direct peer to Arenko Nimbus-Trade in autonomous trading and asset optimization for grid-scale BESS, often bundled with Tesla Megapack hardware.
- Fluence: Fluence is a direct peer in grid-scale battery energy storage and offers the MosaicOS platform for AI-enabled bidding, asset management, and market optimization across multiple ISOs. It is comparable to Arenko because it competes for the same utility-scale BESS software contracts and combines hardware with software optimization.
- Wärtsilä Energy Storage (GEMS): Wärtsilä's GEMS Digital Energy Platform optimizes grid-scale battery and hybrid storage assets through machine-learning-driven energy management. It directly competes with Arenko in delivering AI-enabled control, trading, and performance optimization for utility-scale BESS and hybrid sites.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Arenko Group social profiles
Digital presenceArenko Group compliance and trust
Trust signalCompliance1 record
Arenko Group financial estimates
Financial estimateRevenue estimate
Valuation estimate
Arenko Group leadership team
Management profileNumber of profiles
Profiles12 records
Arenko Group funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Arenko Group 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 Arenko Group
What does Arenko Group do?
Arenko sells the Nimbus software platform — an AI-enabled, modular SaaS suite that connects, controls, and optimizes grid-scale battery energy storage assets and co-located hybrid renewable-plus-storage assets. The platform combines on-site hardware (Iris), cloud software for asset control and high-resolution telemetry (Nimbus-Asset), fully automated end-to-end multi-market trading (Nimbus-Trade), and automated passive asset management with ML-driven performance insights (Nimbus-Performance). Arenko also delivers a managed "Route to Market" service built on the Nimbus platform.
Is Arenko Group a public or private company?
Arenko Group is a private company. It is classified as venture growth investor backed and is currently operating.
When was Arenko Group founded?
Arenko Group was founded in 2014. It employs 11 to 50 people.
Where is Arenko Group based?
Arenko Group is headquartered in London, United Kingdom, in the Europe region.
How does Arenko Group make money?
Two revenue lines are on record. Software Licensing & SaaS are the primary driver. The others are route to Market Services.
Who are Arenko Group's main competitors?
Emerging players on record are Piclo and EnergyHub. Direct peers are Modo Energy, GridBeyond, Flexitricity, Pexapark, Kiwi Power (Engie), Tesla (Autobidder), Fluence and Wärtsilä Energy Storage (GEMS).
Does Arenko Group have an API?
Yes. Ar Arenko's Nimbus-Trade product provides API access to all commercial data sets, including a data portal with all commercial data and Live Profit and Loss dashboards. The Nimbus-Asset product provides access to all standardised asset data via an API, including high-resolution device telemetry, power quality metering, asset alerts, and a full suite of power, energy and response profile scheduling APIs.