EINHUNDERT Energy

What EINHUNDERT Energy does

einhundert Energie GmbH, founded in 2017 and headquartered in Cologne with an additional Berlin office, is a privately held German energy service company focused on integrated decarbonization solutions for the residential housing industry (Wohnungswirtschaft). The company serves German housing companies, housing cooperatives (Wohnungsbaugenossenschaften), and property managers with a portfolio spanning PV-based tenant electricity (Mieterstrom), heat pump contracting, battery storage, EV charging infrastructure, and in-house smart metering. As of 2025 it serves more than 20,000 households across 250+ housing company customers, generating 30,000+ MWh of solar power annually and 10,000 tons of CO2 savings per year.

The company's core technology is an integrated energy management platform that combines rooftop photovoltaic generation, heat pump systems, battery storage (100.Flex), and proprietary smart metering infrastructure (wholly-owned subsidiary 100.Metering) for multi-family residential buildings. The 100.product line delivers this stack through multiple business models: 100.Strom (photovoltaic-based tenant electricity), 100.Wärme (heat pump solutions), 100.Kombi (combined PV plus heat pump), 100.Dachpacht (full rooftop leasing where EINHUNDERT Energy finances, installs, and operates the PV system), 100.Lieferkette (housing company-owned PV with EINHUNDERT Energy purchasing the electricity and handling metering and billing), and 100.Wärme-Contracting (full-service heat contracting). A consumer-facing sub-brand, meinhundert, handles tenant contracts, billing, and customer service for end users.

Revenue is generated primarily through subscription/recurring green electricity supply to tenants and managed services contracts for heat and PV operations, with multi-year contractual agreements and custom enterprise pricing based on building specifications, number of units, and scope of services. Distribution is conducted via a direct enterprise field sales motion targeting housing industry decision-makers, supplemented by industry event participation (including the PROPS Roadshow), webinars, and content marketing. The company is led by four managing directors (Dr. Ernesto Garnier, Kristin Gay, Omid Ebrahimi, Paul Krebs) plus a CRO and regional sales leadership. In April 2025, EINHUNDERT Energy acquired Solarimo's Mieterstrom portfolio, and in November 2025 signed a cooperation agreement with VIVAWEST for green electricity supply with a roadmap to roughly 8,000 PV-supplied units by 2045.

Name

EINHUNDERT Energy

Legal name

einhundert Energie GmbH

Website

https://einhundert.de

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

51–100 employees

Short description

einhundert Energie GmbH is a Cologne-based integrated energy service provider serving the German residential housing industry with photovoltaic-based tenant electricity, heat pump contracting, battery storage, and proprietary smart metering, reaching 250+ housing companies and 20,000+ households.

Ownership category

akta.pro rank

Product category

Residential Building Energy Services

NAICS

Electric Power Generation (22111), Solar Electric Power Generation (221114), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341)

SIC

Electric Services (4911), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

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

akta.pro secondary industries

Microgrid, DER & Building Electrification Energy Controls (Solar/Storage/EV Load Orchestration) (BPABAGAJ), Smart HVAC, IAQ & Energy Optimization (HSAPAPAB), Smart Appliance & Energy Management Integration (HSAHADAG), EV Charging Infrastructure IoT & Smart Charging (V1G/V2G) (EUADAPAH)

Keywords

• Tenant electricity supply
• Residential heat pumps
• Building decarbonization services
• Photovoltaic energy solutions
• Housing industry energy

Headquarters

HQ city

Cologne

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Energy Supply (Green Electricity): Recurring revenue from supplying green electricity to residential tenants in multi-family buildings. Housing companies partner with EINHUNDERT Energy to provide CO2-free energy to their tenants, creating a subscription-like recurring revenue stream based on consumption.
2. Heat Contracting / Managed Energy Services: Managed services model where EINHUNDERT Energy installs, operates, and maintains heat pump systems and related infrastructure. Housing companies pay for the heating services rather than capital equipment, generating recurring managed services revenue.
3. Photovoltaic System Services: Revenue from planning, installation, and ongoing operation of PV systems on residential buildings. This may include both project-based installation fees and ongoing monitoring/maintenance services.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

EINHUNDERT Energy provides integrated energy concepts for the German housing industry (Wohnungswirtschaft), combining rooftop photovoltaic systems, heat pump installations, battery storage, and proprietary smart metering to deliver tenant electricity (Mieterstrom), heat contracting, and managed PV services to multi-family residential buildings. The company serves housing companies, housing cooperatives, and property managers through multi-year contracts covering planning, installation, operation, metering, billing, and tenant customer service.

Product overview

EINHUNDERT Energy offers an integrated portfolio of energy solutions for the residential housing sector under the 100.product line. The core offerings comprise 100.Strom (photovoltaic-based tenant electricity), 100.Wärme (heat pumps), and 100.Kombi (combined PV and heat pump). These are delivered through multiple business models including 100.Dachpacht (rooftop leasing with full einhundert operation), 100.Lieferkette (building owner operates PV, einhundert provides services), and 100.Wärme-Contracting (full-service heat solutions). Supporting modules include 100.Metering (in-house smart metering), 100.Flex (battery storage), and 100.Wärmestrom (heat pump electricity). The consumer-facing brand meinhundert handles tenant-facing services including contracts, billing, and customer support.

Differentiator

Problem solved

Functional benefit

Brands

• meinhundert: Consumer electricity brand for tenants — meinhundert.de is the brand portal for end customers of einhundert's tenant electricity services.

Products and services

• 100.Strom

Quantifiable outcome

• 10,000 tons annual CO2 savings
• +2 more outcomes

Named customers1 record

Segments1 record

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core, regional and minor.

• VIVAWESTcoreStrategic or Co-development Partner · 1 January 2024Partnership for the supply of green electricity to VIVAWEST's residential portfolio. VIVAWEST is one of the largest housing companies in Germany's Rhineland region. The partnership enables VIVAWEST to offer tenants CO2-free electricity sourced from local photovoltaic installations managed by EINHUNDERT Energy.
• hanova WOHNEN GmbHregionalGTM or Marketing PartnerRegional partnership where hanova WOHNEN GmbH participates in the PROPS Roadshow as a local host. hanova is a housing company in the Hannover region. The partnership helps EINHUNDERT Energy reach housing industry decision-makers in the Lower Saxony region.
• ConnektminorGTM or Marketing PartnerConnekt serves as the organizer of the PROPS Roadshow, an industry event series for the housing sector. EINHUNDERT Energy participates as a partner/sponsor of these regional events to build brand awareness and generate leads among housing company attendees.
• SolarimocoreStrategic or Co-development PartnerEINHUNDERT Energy acquired Solarimo's tenant electricity portfolio (Mieterstromportfolio). This acquisition significantly expanded EINHUNDERT Energy's customer base and portfolio of managed residential buildings with existing PV installations and tenant electricity contracts.

Scale indicators4 records

Recent moves6 records

Expansion highlights7 records

Direct peers

• 1Komma5°: German PropTech scale-up offering integrated residential decarbonization (solar, heat pumps, EV charging, electricity contracts) directly to homeowners and housing firms — same end-customer pain points and integrated stack as EINHUNDERT, with much larger capital base and customer reach.
• GETEC Mieterstrom: Specialist in tenant electricity (Mieterstrom) and contracting for residential and commercial buildings in Germany — directly comparable in product offering (PV-based tenant electricity, metering, billing) and housing-industry GTM, even listed among EINHUNDERT's customer logos.
• Lichtblick: One of Germany's largest green electricity and heat providers, offering tenant electricity, heat pumps and energy-as-a-service products to households and housing companies — overlapping target customer base and product mix with EINHUNDERT's Wohnungswirtschaft focus.
• NATURSTROM: German green-energy supplier and Mieterstrom/contracting provider for residential and commercial real estate, with similar reliance on PV-based tenant electricity and a housing-company customer base.

Broad incumbents

• Mainova AG: Frankfurt municipal utility offering Mieterstrom, heat contracting and PV solutions for housing companies as part of a broader utility portfolio — overlapping offering but at much larger scale and within a regional Frankfurt/Rhine-Main footprint.
• EnBW: One of Germany's largest integrated energy utilities, providing residential PV, heat pumps, tenant electricity and EV charging — directly competing in the same Wohnungswirtschaft segment but as part of a much broader energy and network portfolio.
• Viessmann Climate Solutions: Major German heat-pump and heating-system manufacturer selling integrated heating/PV/heat-pump solutions to housing companies and trades — competes upstream with EINHUNDERT in heat contracting offerings, with much larger balance sheet and channel reach.

Regional players

• EWS Schönau: Citizen-owned green energy cooperative in southwestern Germany supplying renewable electricity and operating decentralized generation; competes conceptually in green tenant electricity but with a cooperative, regionally anchored model.

Emerging players

• Zolar: Berlin-based online platform connecting homeowners with solar installers and increasingly offering heat pumps and EV chargers — adjacent PropTech player in the German residential decarbonization stack with overlapping customer journey.
• Kiwigrid: Dresden-based energy management software provider connecting distributed energy assets (PV, storage, heat pumps, EV chargers) for utilities and housing operators — complements EINHUNDERT's stack with software layer and serves overlapping housing-utility customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/einhundert
• Xx.com/einhundert_cgn

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries1 record

Funding overview

Funding rounds3 records

Investors7 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 EINHUNDERT Energy