E3/DC

What E3/DC does

E3/DC, operating as HagerEnergy GmbH, is a German manufacturer of integrated home power stations (Hauskraftwerk) for residential and commercial customers. Founded in 2010 in Osnabrück and acquired by Hager Group in December 2017, the company combines a PV inverter, lithium battery storage, energy management software, and EV charging capability in a single all-in-one device. Its proprietary TriLINK technology and 360° Energy Management platform coordinate electricity, heat, and mobility (sector coupling), with features including dynamic-tariff optimization, emergency power backup, heat pump control, and bidirectional-charging readiness. The product family spans the S10 SE, S10 X, S10 E PRO, S20 X PRO, the compact 'one' system, S10 Xplus, S10 Xflex, qntm, the efy wallbox, and a Smart Meter integrated with Inexogy.

E3/DC sells exclusively through a certified specialist partner network (Fachpartner) in Germany, Austria, and Switzerland, supported by training, a partner dashboard, and an online configurator that routes leads to local installers. Revenue is generated primarily through one-time hardware sales of integrated systems, supplemented by Smart Meter services (annual savings of up to €190 under §14a EnWG) and software updates bundled into the system price (subscription-free). Customers span individual residential homeowners (primary), commercial and agricultural operations, heat pump owners, and EV owners, with the installed base powering 30,000+ heat pumps. The business model is capital-light distribution by design, with no disclosed direct-to-consumer sales, no public financials (private subsidiary of Hager Group), and recognition including Best-of-German-Industry 2025 and the German Brand Award 2024.

Name

E3/DC

Legal name

HagerEnergy GmbH

Website

https://e3dc.com

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Short description

E3/DC is a German manufacturer of all-in-one home power stations integrating PV inverter, battery storage, energy management, and EV charging, sold exclusively through a certified specialist partner network to residential and commercial customers in the DACH region.

Ownership category

akta.pro rank

Product category

Residential Energy Storage Systems

NAICS

Relay and Industrial Control Manufacturing (335314), Switchgear and Switchboard Apparatus Manufacturing (335313)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600)

akta.pro primary industry

Home Energy & EV Charging (HEMS, Smart Meters, Batteries, Chargers) (HSAPAQAF)

akta.pro secondary industries

Power Conversion Systems for Storage & Charging (PCS, bidirectional inverters, DC/DC) (IMAGAHAE), EV/Industrial Charging Power Electronics (Chargers, rectifiers, power stages) (IMAGADAF), Bidirectional Charging Hardware (Onboard/Offboard Chargers, Inverters, EVSE) (EUAFAMAC)

Keywords

• Home energy storage
• Solar battery systems
• Residential PV storage
• Integrated energy management
• EV charging solutions

Headquarters

HQ city

Osnabrück

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Hardware Sales: E3/DC generates revenue primarily through the sale of integrated home power station systems, battery storage units, smart meters, and wallbox charging solutions. Products are sold exclusively through certified specialist installation partners. The company offers various system sizes (S10 SE, S10 X, S10 E PRO, S20 X PRO) targeting different customer segments from residential to commercial.
2. Smart Meter Services: Through partnership with Inexogy, E3/DC offers smart meter installation and management services, providing annual savings of up to €190 through reduced grid charges under German §14a EnWG regulation.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

E3/DC designs, manufactures, and sells all-in-one home power stations (Hauskraftwerk) that integrate a PV inverter, battery storage, energy management system, and EV wallbox charging in a single device. The systems enable sector coupling of electricity, heat, and mobility for residential and small commercial customers, and are sold exclusively through a certified specialist partner network across Germany, Austria, and Switzerland.

Product overview

E3/DC offers a complete energy technology portfolio in one product, combining inverters, battery storage, software, and energy management. The product family includes the S10 series home power stations (S10 SE, S10 X, S10 E PRO, S20 X PRO), the compact 'one' system, flexible storage solutions (S10 Xplus, S10 Xflex), and qntm, complemented by the efy WALLBOX for EV charging and Smart Meter for dynamic tariffs. All products feature the proprietary TriLINK® technology and are integrated through the 360° Energy Management platform that enables sector coupling of electricity, heat, and mobility. The systems are subscription-free, manufactured in Germany, and designed for the fully electric house concept.

Differentiator

Problem solved

Functional benefit

Brands

• Hauskraftwerk: Home power station - integrated energy management system combining PV storage, inverter, and smart home energy control
• S10 Series
• S20 X PRO
• efy Wallbox
• Smart Meter

Products and services

• S10 SE Entry-level all-in-one home power station with integrated inverter, battery storage, and energy management, targeted at residential customers with smaller PV systems (5–12 kWp) and electricity consumption up to about 5,000 kWh per year.
• S10 X Mid-range all-in-one home power station providing full sector coupling capability across electricity, heat, and mobility for typical residential installations.
• S10 E PRO Premium high-performance home power station with extended capacity designed to enable complete solar-electric self-sufficiency without ongoing energy costs for residential customers.
• S20 X PRO E3/DC's largest home power station designed for full sector coupling in large residential buildings and commercial properties, supporting PV systems up to 45 kWp and large-scale self-consumption solutions.
• one Compact integrated home power station combining all E3/DC technologies in a single system designed for the fully electric house.
• S10 Xplus Residential storage solution within the S10 product family with enhanced capacity and performance.
• S10 Xflex Flexible residential storage solution within the S10 product family allowing configurable energy management configurations.
• qntm Additional product in the E3/DC home power system portfolio, part of the broader home energy ecosystem.
• efy WALLBOX Intelligent EV wallbox charging station that integrates with the E3/DC home power station to enable solar-optimized EV charging, with hardware prepared for future bidirectional (vehicle-to-grid) charging capability.
• Smart Meter (iMSys) Smart meter (iMSys) communication interface enabling precise measurement of electricity consumption and PV feed-in, forming the basis for dynamic electricity tariff usage and providing up to €190/year in savings through reduced grid charges under German §14a EnWG; offered in partnership with Inexogy.

Quantifiable outcome

• Up to 20% savings on electricity costs through dynamic tariffs
• +3 more outcomes

Named customers7 records

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

AI capability3 records

Feature5 records

Partnerships

Five partnerships are on record, tiered core, key and minor.

• InexogycoreTechnology or IntegrationInexogy serves as E3/DC's competitive metering point operator (Messstellenbetreiber) nationwide in Germany. The partnership enables integration of intelligent measurement systems (iMSys/Smart Meter) with E3/DC home power stations, enabling dynamic electricity tariff optimization and compliance with German §14a EnWG regulation.
• E.ONkeyGTM or Marketing PartnerE.ON is listed as a Smart Energy Partner offering E3/DC integration with E.ON energy products. Partnership enables joint go-to-market for residential energy solutions combining E3/DC storage systems with E.ON electricity tariffs.
• TibberkeyGTM or Marketing PartnerTibber is listed as a Smart Energy Partner, offering dynamic electricity tariffs that integrate with E3/DC home power stations for optimized energy cost management.
• Luox EnergyminorGTM or Marketing PartnerLuox Energy is listed as a Smart Energy Partner providing dynamic electricity tariff services integrated with E3/DC systems.
• OstromminorGTM or Marketing PartnerOstrom is listed as a Smart Energy Partner offering dynamic electricity tariffs integrated with E3/DC home power stations.

Scale indicators4 records

Recent moves6 records

Direct peers

• Sonnen: German direct competitor in residential battery energy storage systems, now owned by Shell. Offers integrated home storage solutions with energy management, directly competing with E3/DC's Hauskraftwerk concept in the DACH market.
• Senec: German home battery storage specialist owned by EnBW. Competes directly with E3/DC in residential energy storage with similar integrated inverter + storage + energy management offerings in the DACH market.
• VARTA (Energy Storage): German battery manufacturer with a home energy storage business (VARTA.wall, VARTA.flex). Competes directly in the DACH residential storage market with similar integrated storage + inverter products.
• RCT Power: German manufacturer of inverters and battery storage systems. Competes in the same residential and small commercial storage segment as E3/DC with comparable all-in-one product architecture.
• Kostal Solar Electric: German manufacturer of hybrid inverters and energy storage solutions. Competes with E3/DC in residential and commercial PV + storage with comparable integrated product offerings in the DACH market.

Broad incumbents

• Tesla Energy (Powerwall): Global market leader in residential battery storage with the Powerwall product. Tesla's scale, brand, and integrated solar-roof offering make it a broad incumbent competitor, though its DACH market penetration has historically been lower than local specialists.
• SMA Solar Technology: German global leader in solar inverters and energy management. While primarily an inverter specialist, SMA's Sunny Boy Storage and energy management platforms overlap with E3/DC's integrated home energy systems.
• BYD: Global battery and energy storage giant. BYD's Battery-Box residential storage products are increasingly competitive in DACH via installer networks, representing a significant cost-driven competitive threat.
• SolarEdge: Global power electronics and energy storage company. SolarEdge's Energy Bank and inverters plus energy management software overlap with E3/DC's integrated home power station concept.

Regional players

• Fronius: Austrian-headquartered manufacturer of solar inverters and energy storage solutions. Competes in the DACH market with hybrid inverters and battery storage products, with a particularly strong Austrian and southern German presence.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCy82YSU9FxoYhknZ4PFmjrQ
• Facebookfacebook.com/E3DC.Stromspeicher
• LinkedInlinkedin.com/company/e3dc
• Instagraminstagram.com/e3dc_energystorage

Compliance1 record

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 E3/DC