EFT-Systems

What EFT-Systems does

EFT-Systems GmbH is a German energy equipment distribution and lifecycle-services company founded in 2015 and headquartered at Bruchtannenstraße 28, 63801 Kleinostheim, Bavaria. The company is the official and exclusive European service partner of BYD BatteryBox, acting as the primary contact point for all BatteryBox installers across the continent. Its operations cover roughly 12 European countries with local teams operating in 8 languages and serve a network of 400+ certified installers who purchase and install BYD's residential and commercial energy storage systems for end customers in Germany, the UK, Italy, the Netherlands, Poland, France, Spain, Austria, Lithuania, Sweden, Switzerland, and Portugal.

The product portfolio distributed and serviced by EFT-Systems spans BYD's Battery-Box family — HVB (high-voltage, 4-256 kWh), HVE (high-voltage integrated battery-plus-inverter, 6.4-70.92 kWh at 140 mm form factor), HVS+ and HVM+ (high-voltage modular, 5.1-66.2 kWh, VDE 2510-50 certified), Premium LVS and Premium LVL (low-voltage up to 983 kWh) — together with Power-Box SH3-6K (single-phase 3-6 kW) and TH5-15K (three-phase 5-15 kW, 98.2% max efficiency) hybrid inverters. All cells are BYD's cobalt-free Lithium Iron Phosphate (LFP) Blade cells in Cell To Pack configuration, with up to 15-year warranty on HVB products. EFT-Systems does not manufacture the cells or inverters; it monetizes the relationship through distribution, training, technical support, ticketing via the BePartner portal, event programming, and end-of-life battery takeback as BYD's appointed producer extended responsibility agent under EU Battery Directive 2006/66/EC.

The business model is B2B2B channel-partner driven. Revenue is generated through hardware sales to certified installers (placed via email or telephone with prepayment or PayPal), professional services revenue from training, technical support, and after-sales, and managed services revenue from European logistics and end-of-life battery management on BYD's behalf. Pricing is not publicly disclosed. The company is a privately held German GmbH with no external institutional investors identified, 70+ employees, and is led by Managing Director Juan Carlos Alonso.

Name

EFT-Systems

Legal name

EFT-Systems GmbH

Website

https://eft-systems.de

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

11–50 employees

Short description

EFT-Systems GmbH is the exclusive European service partner for BYD BatteryBox, distributing and supporting BYD's residential and commercial energy storage systems to a network of 400+ certified installers across 12 European countries.

Ownership category

akta.pro rank

Product category

Battery Energy Storage Distribution

NAICS

Business Support Services (5614)

SIC

Electric & Other Services Combined (4931)

akta.pro primary industry

BESS O&M and Lifecycle Services (Warranty, Spares, Monitoring) (EUAEAEAM)

akta.pro secondary industries

Battery Recycling, Decommissioning & End-of-Life Services (EUAEAEAN), Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB)

Keywords

• Energy storage distribution
• Battery systems wholesale
• Installer support services
• Solar storage solutions
• Battery recycling logistics

Headquarters

HQ city

Kleinostheim

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. BYD Battery-Box Hardware Sales: EFT-Systems serves as the European channel partner for BYD Battery-Box products. Revenue is generated through the sale of BYD battery storage systems (HVB, HVE, HVS+/HVM+, Premium LVS, Premium LVL) and Power-Box hybrid inverters (SH3-6K, TH5-15K) to certified installers and distribution partners across Europe. Orders are placed via email or telephone, with pricing confirmed upon order acceptance. Payment is via prepayment or PayPal. This is primarily a one-time hardware sale model with associated logistics, support, and after-sales services.
2. Service and Support Contracts: EFT-Systems generates revenue through technical support, training services, and after-sales service provided to installers throughout the product lifecycle — from pre-sales to end-of-life. The company organizes training events across Europe and provides ticketing-based technical support through the BePartner platform.
3. Logistics Operations for BYD in Europe: EFT-Systems supports BYD in their logistic operations in Europe as part of the service partnership agreement, handling warehousing, distribution coordination, and product takeback/recycling services under EU Battery Directive 2006/66/EC producer extended responsibility obligations.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels6 records

Core offering

EFT-Systems GmbH is the exclusive European service partner for BYD BatteryBox, distributing and supporting BYD's Lithium Iron Phosphate (LFP) energy storage systems (Battery-Box HVB, HVE, HVS+, HVM+, Premium LVS, Premium LVL) and Power-Box hybrid inverters (SH3-6K, TH5-15K) through a network of 400+ certified installers across Europe. The company provides end-to-end services spanning pre-sales training, installation support, after-sales technical assistance, logistics, and EU Battery Directive-compliant end-of-life battery takeback and recycling. Orders are placed by email or telephone with no public price list or online shopping cart.

Product overview

EFT-Systems is the official European partner for BYD Battery-Box since 2015, serving as the exclusive BYD BatteryBox service partner in Europe. The company offers a comprehensive portfolio of BYD energy storage products spanning the Battery-Box HVB (high-voltage battery, 4-256 kWh), Battery-Box HVE (high-voltage integrated, 6.4-70.92 kWh), Battery-Box HVS+ and HVM+ (high-voltage modular, 5.1-66.2 kWh), Premium LVS and Premium LVL (low-voltage systems up to 983 kWh). Complementing the battery products are the Power-Box SH3-6K (single-phase hybrid inverter, 3-6 kW) and Power-Box TH5-15K (three-phase hybrid inverter, 5-15 kW). All products use BYD's cobalt-free Lithium Iron Phosphate (LFP) battery technology. The product range addresses residential and commercial energy storage needs from 4 kWh to 983 kWh with flexible expandability options.

Differentiator

Problem solved

Functional benefit

Brands

• Battery-Box Premium: Award-winning residential and commercial energy storage product line by BYD, distributed and serviced by EFT-Systems in Europe, ranging from 4 kWh to 983 kWh capacity.
• Power-Box
• BePartner

Products and services

• Battery-Box HVB High-voltage modular battery system scalable from 4 kWh to 256 kWh, featuring BYD Blade cells with Cell-To-Pack (CTP) structure delivering 29.6 kWh in a 1.32 m tower. Designed for residential and commercial energy storage with up to 15 years warranty. Distributed and serviced by EFT-Systems across Europe through the certified installer network.
• Battery-Box HVE BYD's first high-voltage integrated solution combining battery and inverter in a single slim 140 mm unit. Scalable from 6.4 to 70.92 kWh with combinable module capacities of 4.2 and 6.4 kWh, and up to 15 years warranty. Distributed by EFT-Systems to certified installers across Europe.
• Power-Box SH3-6K Single-phase hybrid inverter available in 3, 3.6, 4.6, 5, and 6 kW versions. Supports parallel connection (up to 3 units), backup switch time under 10 ms, and 150% PV input oversizing with up to 150% PV output power capability. Distributed by EFT-Systems to certified installers across Europe.
• Power-Box TH5-15K Three-phase hybrid inverter available in 5, 6, 8, 10, 12, and 15 kW versions. Features maximum efficiency of 98.2%, 100% three-phase unbalanced output, THDv under 2%, and 150% peak output power for 60 seconds. Distributed by EFT-Systems to certified installers across Europe.
• Battery-Box HVS+ High-voltage modular battery system scalable from 5.1 to 66.2 kWh, featuring real high-voltage series connection for maximum efficiency, automatic cell balancing for worry-free extensions, and simplified outside cabling installation. Certified to VDE 2510-50 safety standards. Distributed by EFT-Systems to certified installers.
• Battery-Box HVM+ High-voltage modular battery system scalable from 5.1 to 66.2 kWh, offering highest efficiency through real high-voltage series connection, automatic cell balancing for extensions, and simplified installation. Certified to VDE 2510-50 safety standards. Distributed by EFT-Systems to certified installers.
• Premium LVS Low-voltage battery system offering maximum flexibility with up to 64 modules connected in parallel and featuring a patented internal plug design that requires no additional wiring. Designed for residential and commercial self-consumption optimization. Distributed by EFT-Systems to certified installers.
• Premium LVL Low-voltage stacked battery system scalable from 15.4 to 983 kWh with a space-saving design supporting up to 64 modules in parallel for large-scale commercial and industrial applications. Distributed by EFT-Systems to certified installers.
• BePartner Installer Support Portal Online portal (support.eft-systems.de) for certified BatteryBox installers across Europe, providing online training modules, technical support ticketing, event registration, and downloadable resources. Serves as the primary ongoing relationship and retention tool for the 400+ installer network.
• EU Battery Takeback and Recycling Service Producer extended responsibility service operated by EFT-Systems on behalf of BYD Electronics under EU Battery Directive 2006/66/EC, providing free battery takeback and recycling for end-of-life Battery-Box Premium systems. Registered in Germany, UK, Italy, Netherlands, Poland, France, Spain, Austria, Lithuania, and Sweden.

Quantifiable outcome

• Ranked #1 in HTW Berlin battery storage efficiency ranking for 7 consecutive times
• +5 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• BYD Electronics Co., Ltd.flagship / coreStrategic or Co-development Partner · 1 January 2015EFT-Systems is the official European partner of BYD BatteryBox since its launch in 2015, and the exclusive BYD BatteryBox service partner in Europe since the very beginning. BYD is a multinational high-tech company (Build Your Dreams) founded in 1995, today one of the world's largest manufacturers of rechargeable batteries, electric vehicles, and stationary storage systems. BYD manufactures the BatteryBox products including the Blade cells used therein. EFT-Systems is appointed as BYD's producer extended responsibility agent under EU Battery Directive 2006/66/EC, covering all BatteryBox Premium operations in Europe.

Scale indicators8 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• VARTA Storage (VARTA AG): VARTA Storage produces German-engineered home battery storage systems (e.g., VARTA pulse, element, flex storage) and competes directly with BYD BatteryBox in the European residential storage market; comparable product portfolio and German/European distribution model.
• GoodWe: GoodWe is a Chinese inverter and storage manufacturer with European distribution and installer-channel sales of hybrid inverters and battery systems; directly comparable product mix (inverter + storage) competing with the Power-Box + Battery-Box combination sold via EFT.
• Senec GmbH: Senec is a German residential battery storage manufacturer and integrator with its own branded home storage systems sold across Europe via installer channels; directly comparable to EFT-Systems in terms of European geography, installer-led go-to-market, and product overlap with BYD BatteryBox.
• Pylontech: Pylontech is a Chinese lithium battery storage manufacturer with established European distribution and an installer-led go-to-market; one of the primary product-level competitors to BYD BatteryBox in residential stacking systems and a constant presence in HTW Berlin storage rankings.
• SolaX Power: SolaX Power is a Chinese inverter and battery storage manufacturer with a strong European footprint distributing products through local installer networks; competes with BYD BatteryBox across both battery and hybrid inverter categories where EFT also operates.
• Sonnen (owned by Shell): Sonnen is a leading German residential and small-commercial battery storage company competing directly with BYD BatteryBox in the same European target segments; Sonnen and BYD BatteryBox are routinely ranked together in HTW Berlin's storage efficiency table, making them the closest like-for-like competitor to EFT-Systems' distributed products.
• Fenecon GmbH: Fenecon is a German energy storage company offering residential, commercial and industrial battery storage systems with strong installer and direct-sales models in Germany and Europe; competes head-to-head with BYD BatteryBox in C&I scale (Premium LVL's 983 kWh range overlaps with Fenecon's commercial offerings).
• AlphaESS: AlphaESS is a Chinese battery storage manufacturer with European operations offering residential and commercial stackable storage solutions; mirrors EFT-Systems' model of combining Asia-designed hardware with European installer service and support.

Emerging players

• Memodo GmbH: Memodo is a European (German-based) distributor of energy storage, inverters and PV components with a strong installer portal and event-driven education model; business model parallels EFT-Systems as a channel-led European energy storage distributor, though not exclusive to a single OEM.
• Krannich Solar: Krannich Solar is a leading European PV and storage wholesaler with multi-country operations and an installer certification/events program that mirrors EFT-Systems' BePartner model; both run Krannich CH-style training events mentioned in EFT's own marketing channels.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/EFT_Systems

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

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 EFT-Systems