E3/DC
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.
- Company typePrivate
- Founded2010
- HeadquartersOsnabrück, Germany
- Headcount11–50
- GTM typeB2C
- OfferingHardware or Manufacturing
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.
E3/DC firmographics
Firmographics- 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
E3/DC industry classification
Industry- 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
Where E3/DC is headquartered
LocationHeadquarters
- HQ city
- Osnabrück
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
E3/DC business model
Business model- GTM type
- B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Technology or R&D, Personnel, Marketing or Sales, Operations
Revenue model
- 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.
- 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
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Multi-year contract | S10 SE - Entry-level system for basic needs |
| One time/ perpetual license | Multi-year contract | S10 X - Mid-range all-in-one system |
| One time/ perpetual license | Multi-year contract | S10 E PRO - Premium system with extended capacity |
| One time/ perpetual license | Multi-year contract | S20 X PRO - Large-scale commercial system |
| Subscription | Annual | Smart Meter - Annual savings through dynamic tariffs |
Go-to-market motion2 records
Distribution channels4 records
Marketing channels6 records
E3/DC product offering
Product offeringCore 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
Companies that use E3/DC
Customer profileNamed customers7 records
Segments4 records
Ideal customer profiles2 records
E3/DC technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration5 records
AI capability3 records
Feature5 records
E3/DC partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered core, key and minor.
- InexogycoreInexogy 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.ONkeyE.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.
- TibberkeyTibber 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 EnergyminorLuox Energy is listed as a Smart Energy Partner providing dynamic electricity tariff services integrated with E3/DC systems.
- OstromminorOstrom is listed as a Smart Energy Partner offering dynamic electricity tariffs integrated with E3/DC home power stations.
Scale indicators4 records
Recent moves6 records
E3/DC competitors and assessment
Company assessmentDirect 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
E3/DC social profiles
Digital presenceE3/DC compliance and trust
Trust signalCompliance1 record
E3/DC financial estimates
Financial estimateRevenue estimate
Valuation estimate
E3/DC leadership team
Management profileNumber of profiles
Profiles1 record
E3/DC funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
E3/DC 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 E3/DC
What does E3/DC do?
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.
Is E3/DC a public or private company?
E3/DC is a private company. It is classified as corporate owned and is currently operating.
When was E3/DC founded?
E3/DC was founded in 2010. It employs 11 to 50 people.
Where is E3/DC based?
E3/DC is headquartered in Osnabrück, Germany, in the Europe region.
How does E3/DC make money?
Two revenue lines are on record. Hardware Sales are the primary driver. The others are smart Meter Services.
Who are E3/DC's main competitors?
Direct peers on record are Sonnen, Senec, VARTA (Energy Storage), RCT Power and Kostal Solar Electric. Broad incumbents are Tesla Energy (Powerwall), SMA Solar Technology, BYD and SolarEdge. Fronius is listed as a regional player.
Does E3/DC have an API?
No public API is recorded for E3/DC.
What industry is E3/DC in?
E3/DC's product category is Residential Energy Storage Systems. Its primary akta.pro industry code is HSAPAQAF, Home Energy & EV Charging (HEMS, Smart Meters, Batteries, Chargers), with a secondary code of IMAGAHAE, Power Conversion Systems for Storage & Charging (PCS, bidirectional inverters, DC/DC). Its NAICS code is 335314 and its SIC code is 3600.