Octave

What Octave does

Octave BV is a Belgian cleantech company founded in 2020 that designs, sells, and operates commercial- and industrial-scale battery energy storage systems (BESS) and an Energy Management System (EMS) for businesses across Belgium. The hardware portfolio spans the 126 kWh Octave One S, 215 kWh One Air, 261 kWh One Plus (with CATL 314Ah LFP cells and integrated liquid cooling), and 3.3–5.0 MWh Octave Container products, plus a circular line reusing Mercedes-Benz Energy second-life modules. A proprietary Battery Cloud platform continuously collects cell-level telemetry, powering the State-of-Health ML algorithm, the Battery Care predictive-maintenance service (bundled with hardware under a 10-year / 70% residual capacity guarantee), and the Optimal Control managed service for peak shaving and Belgian day-ahead and imbalance-market arbitrage via the Yuso aggregator.

Octave generates revenue through one-time hardware sales (quote-based, multi-year contracts), recurring Battery Care subscriptions, and outcome-based Optimal Control revenue shares, with additional software revenue via the EMS, Octave Portal, EdgeBox-RPi-200 controller, and Partner API (MQTT/HTTP). Go-to-market is partner-led through 25+ certified installers and 13+ energy supplier / BSP / BRP partners (Engie, Centrica, Eneco, Yuso, Luminus, Scholt, etc.), augmented by a direct enterprise field sales team with dedicated Heads of Sales for BESS and EMS divisions. Customer mix spans SMEs, large industrial sites, agricultural operations (a primary vertical), and sports and entertainment venues, with over 15 published case studies ranging from a 111 kWh dairy-farm install to multi-site 2.8 MWh industrial deployments.

The company has sold more than 150 MWh of storage capacity, operates the largest behind-the-meter battery fleet in Belgium (80 MW of smart-controlled flexible assets), and has avoided approximately 2,600 tonnes of CO2 through its second-life fleet. Octave closed a EUR 2 million seed round in June 2022 co-led by SPDG Ventures and U2P with EIC Accelerator Fund, Innoviris, SimpliCity, and imec.istart, and remains privately held with headquarters in Mechelen and a regional office in Brussels.

Name

Octave

Legal name

Octave BV

Website

https://octave.energy

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

11–50 employees

Short description

Octave is a Belgian cleantech scale-up that sells commercial and industrial battery energy storage systems (126 kWh to 5 MWh) and a proprietary Energy Management System to Belgian SMEs, industrial sites, agricultural operations, and venues, monetising hardware sales, Battery Care subscriptions, and Optimal Control grid-market arbitrage.

Ownership category

akta.pro rank

Product category

Battery Energy Storage Systems

NAICS

Battery Manufacturing (33591)

SIC

Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

BESS OEMs (Containerized Systems, Racks, Turnkey Solutions) (EUAFAAAC)

akta.pro secondary industries

BESS Operations, Maintenance & Asset Performance Management (APM) (EUAFAAAG), Utility-Scale BESS EPC & Integration (EUAEAEAA), Renewables + Storage Hybrid Plant Controller & Co-Optimization (Solar/Wind + BESS) (EUAFAKAF), BESS Safety, Fire Detection/Suppression & Compliance (NFPA/UL/IEC) (EUAFAAAH), Residential / Behind-the-Meter Storage Installation & Integration (EUAEAEAC)

Keywords

• Battery energy storage
• Energy management system
• Commercial solar storage
• Grid balancing services
• Second-life batteries

Headquarters

HQ city

Brussels

HQ country

Belgium

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Supply Chain, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Battery Hardware Sales: Sale of Battery Energy Storage Systems (BESS) including Octave One Plus (261 kWh), Octave One Air (215 kWh), Octave One S (126 kWh), and Octave Container (3.3–5.0 MWh). Products are sold as outdoor-rated, all-in-one cabinets with integrated inverters, BMS, cooling, and fire suppression. One-time capital expenditure revenue model targeting SMBs, agricultural operations, commercial venues, and industrial sites. Prices are quote-based and not publicly disclosed.
2. Battery Care (Remote Monitoring & Predictive Maintenance): Recurring subscription service enabled by the Battery Cloud platform. Includes continuous cell-level monitoring, automated fault detection, safety analysis, remote diagnostics, OTA firmware updates, and predictive maintenance with on-site module replacement when degradation is detected. Octave guarantees minimum 70% residual capacity over a predefined number of cycles and typical 10-year duration under this service.
3. Optimal Control (Grid Services & Market Arbitrage): AI-driven battery optimization service that steers battery assets on day-ahead and imbalance markets to maximize revenue. Combines peak shaving, grid balancing, and market arbitrage. Offered as a managed service in partnership with energy suppliers (BSPs/BRPs) such as Yuso. Revenue generated from grid participation fees and market arbitrage gains shared between Octave, the energy supplier, and the customer.
4. EMS Software Platform: Data-driven Energy Management System platform (Octave Portal) that provides monitoring, control, and analytics across battery, solar, and EV charging assets. Includes Octave EMS Controller (EdgeBox hardware) and open Partner API, MQTT, and Modbus interfaces. May be offered as a standalone or bundled software service with hardware.
5. Imbalance Market Participation Facilitation: Octave enables customers' batteries to participate in the Belgian imbalance market by integrating with Yuso's forecasting and aggregation platform. Yuso Certified Controller allows every Octave battery to be used for imbalance control immediately after commissioning. Octave earns revenue from the technology platform and service facilitation while customers and Yuso share market participation revenues.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Octave designs, sells and operates outdoor battery energy storage systems (BESS) — Octave One Plus, Octave One Air, Octave One S, and Octave Container — combined with a proprietary Energy Management System (EMS) and Battery Cloud monitoring platform. The company targets businesses and industrial sites in Belgium to maximize solar self-consumption, reduce peak demand charges, and generate revenue through Belgian imbalance market and grid balancing participation. Services include Battery Care (predictive maintenance) and Optimal Control (AI-driven market steering), delivered through a partner network of 25+ installers and 13+ energy suppliers.

Product overview

Octave offers a unified portfolio of Battery Energy Storage Systems (BESS) and an Energy Management System (EMS) for outdoor applications, tailored to small and medium enterprises and industrial sites. The hardware product line includes the Octave One series (Octave One Plus with 261 kWh liquid-cooled, Octave One Air with 215 kWh air-cooled, and Octave One S with 126 kWh compact) and the Octave Container (3.3-5 MWh large-scale storage). The software platform comprises the Energy Management System (EMS), Battery Cloud (proprietary monitoring and analytics), Octave Portal (user interface), EdgeBox-RPi-200 (hardware controller), and Partner API. The ecosystem is complemented by Battery Care and Optimal Control services, all designed to work together for integrated energy management combining battery storage, solar, and EV charging.

Differentiator

Problem solved

Functional benefit

Brands

• Octave One: Compact all-in-one outdoor battery systems for maximum performance and reliability, featuring integrated inverter and advanced safety features.
• Octave One Plus
• Octave One Air
• Octave One S
• Octave Container
• Octave EMS
• Battery Cloud
• Battery Care
• Optimal Control
• Octave EdgeBox

Products and services

• Octave One Plus Next-generation first-life LFP battery system with 314Ah cells, integrated bidirectional inverter, liquid cooling/heating via chiller, and automatic aerosol fire suppression. Capacity 261 kWh, Power 125 kW, modular design scalable to MWh level. Targets commercial and industrial sites.
• Octave One Air First-life LFP battery system with outdoor-rated IP54 cabinet, bidirectional inverter, and air cooling system. Capacity 215 kWh, Power 100 kW. Multiple cabinets can be combined to MWh-scale. Targets commercial and small industrial installations.
• Octave One S Compact first-life LFP battery system with integrated HVAC system. Capacity 126 kWh, Power 50 kW. Requires only 1.4 m² footprint per cabinet. Scalable to MWh level by combining multiple units. Targets SMBs and small commercial sites.
• Octave Container Large-scale energy storage in 20ft outdoor enclosure combining high-performance LFP battery modules, inverter options, and liquid-cooled thermal management. Available in 3,343 kWh, 4,179 kWh, and 5,015 kWh configurations. IP55 and C4-rated housing. Targets commercial and industrial sites requiring multi-MWh storage.
• Octave Energy Management System (EMS)

Quantifiable outcome

• Reduces electricity bills by lowering monthly peak consumption through peak shaving
• +5 more outcomes

Named customers16 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration28 records

AI capability4 records

Feature6 records

Partnerships

Eleven partnerships are on record, tiered core and minor.

• YusocoreChannel Partner/ Reseller/ DistributorYuso is Octave's primary energy aggregator and balancing service partner (BSP/BRP). Yuso's forecasting platform steers Octave batteries on the Belgian imbalance market, enabling customers to earn up to EUR 230/MWh. Yuso Certified Controller allows immediate imbalance participation post-commissioning. Yuso also drives significant customer referrals. Octave holds the top position on the Yuso leaderboard for battery onboarding efficiency.
• REPT BatterocoreTechnology or IntegrationREPT Battero is Octave's cell supplier partner for the Container product line. Their cells successfully passed the demanding 14-hour fire propagation test alongside Octave's container design — a global benchmark for BESS safety. The test validated that three 5 MWh containers placed 10 cm apart would not propagate fire between units, demonstrating shared commitment to safety, reliability, and quality.
• TimescalecoreTechnology or IntegrationTimescale is the time-series database provider (built on PostgreSQL) powering Octave's Battery Cloud platform. Octave migrated from AWS Timestream to Timescale, achieving 25x data compression while maintaining full SQL analytical capabilities. Timescale enables high ingestion rates, lossless 90-95% compression, and historical analytics at scale for Octave's battery telemetry monitoring platform.
• Mercedes-Benz EnergycoreOEM/ Whitelabel/ Licensing PartnerMercedes-Benz Energy is a trusted supplier of second-life battery modules to Octave. Modules sourced from Mercedes-Benz electric vehicles retain sufficient usable capacity after automotive service life to deliver excellent performance in stationary energy storage applications. Used in Octave's circular battery product line.
• CATL (Contemporary Amperex Technology)coreTechnology or IntegrationCATL is Octave's Tier 1 cell supplier for first-life LFP battery products including the Octave One Plus, which uses the latest 314Ah LFP cells. CATL cells provide the foundation for Octave's high-performance, long-lifetime battery systems.
• Alpha InnovationsminorImplementation/ SI/ Consulting PartnerAlpha Innovations is a Belgian engineering company that has partnered with Octave for seamless installation of circular battery systems. Contributed to the Eneco Solar circular battery storage project, demonstrating integration expertise.
• Extravolt and ExtrapowerminorImplementation/ SI/ Consulting PartnerExtravolt and Extrapower are Belgian electrical installation companies that partnered with Octave and Eneco for the technical implementation of the OH Leuven 'Energy Stadium of the Future' project — Belgium's first stadium with integrated large-scale solar and Octave battery storage.
• Eco TechnicscoreChannel Partner/ Reseller/ DistributorEco Technics is a leading Belgian installation partner for Octave battery systems, having installed systems across multiple agricultural and commercial sites including Jef Adriaensen's strawberry greenhouse, Pelkmans-Vervoort farm, Matthysen, Godrie dairy farm, and Rudy Meyvis carpentry business.
• Team GreenminorChannel Partner/ Reseller/ DistributorTeam Green is a Belgian installation partner that handled the full project — administrative follow-up, installation, and commissioning — of Octave's 2.3 MWh / 1.1 MW deployment at Hans Gheldof's diversified farming operation across 3 sites.
• Energy Suppliers Network (13+)coreChannel Partner/ Reseller/ DistributorOctave collaborates with a network of 13+ energy suppliers including Engie, Centrica, Luminus, Eneco, Scholt, Enwyse, Elindus, Dats24, VEB, Bnewable, and Companion. These partners provide energy supply, market access, and customer referrals for BESS installations across Belgium.
• Installation Partner Network (25+)coreChannel Partner/ Reseller/ DistributorOctave has established a network of 25+ certified installation partners across Belgium and the Netherlands including Argona, ExtraPower, Ceratec, TechNord, Klinkenberg, Omexom, Intellisol, Ensoltec, CKS, Enersol, Perpetum, EOCYCLE, Lamco, Bessla, Entek, Eoluz, We Green, Ecofusion, Insaver, Jomasolar, Decat, Eco Technics, Team Green, Alpha Innovations, and Extravolt/Extrapower. These partners handle physical installation, electrical connection, and commissioning of Octave BESS systems.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Tesla Energy: Tesla's energy business manufactures Powerwall (residential/BTM BESS) and Megapack (utility-scale BESS) products with integrated software. Direct competitor to Octave in the behind-the-meter commercial and industrial BESS market with similar all-in-one cabinet architecture and proprietary energy management software.
• Fluence Energy: Global BESS provider offering turnkey energy storage products (Gridstack, Ultrastack) plus the Fluence Mosaic OS for optimization and asset management. Competes with Octave in C&I and utility-scale BESS markets, with overlapping software/OS value proposition and grid services offerings.
• Sungrow: Chinese-headquartered global BESS and solar inverter manufacturer with strong European presence. Offers integrated LFP battery cabinets and PowerTitan series with EMS software. Direct competitor on BESS hardware and grid-tied storage systems with similar modular cabinet-based architecture.
• BYD Energy Storage: Major Chinese battery manufacturer with dedicated energy storage division offering C&I and utility-scale BESS solutions including the BatteryBox and MC-Cube products. Competes with Octave in LFP-based commercial and industrial BESS markets globally and across Europe.
• sonnen (Shell): German residential and C&I battery storage provider owned by Shell, offering sonnenBatterie and sonnenPro products with integrated energy management. Closest European peer to Octave in the behind-the-meter segment, with similar focus on small business and residential BESS plus proprietary energy management software.
• Enphase Energy: US-listed microinverter and home battery company with the IQ Battery line and the Enphase App/Installer Platform for energy management. Direct competitor in the behind-the-meter BESS + integrated software segment, particularly for SMB and residential-adjacent commercial customers.

Broad incumbents

• Huawei Digital Power: Global ICT giant with substantial energy business offering LUNA2000 residential BESS, Smart String ESS for C&I, and FusionSolar PV inverter platform with grid-forming capabilities. Broader incumbent that competes with Octave across multiple hardware and software layers in the European BESS market.

Emerging players

• SolarEdge Technologies: Solar inverter manufacturer expanding into residential and commercial BESS with the Energy Bank and SolarEdge Home Battery lines. Partial overlap with Octave in BESS hardware and energy management software for the European C&I segment, though smaller scale in storage than in inverters.
• Nuvve Holding Corp: US-listed V2G and stationary battery storage platform with GIVe aggregation software for grid services. Overlaps with Octave on the Optimal Control service (imbalance market arbitrage, grid balancing) but focuses on EV batteries rather than dedicated LFP cabinets.

Others

• Yuso: Belgian energy aggregator and BSP/BRP partner of Octave, providing forecasting and imbalance market dispatch. Closely related ecosystem participant — not a direct competitor but a critical go-to-market dependency that enables Octave's Optimal Control revenue and imbalance market participation.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/octave-energy

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Funding overview

Funding rounds3 records

Investors6 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Octave