What Wegatech does

Wegatech (legally Wegatech Greenergy GmbH; now operated as a brand of heimWatt GmbH under the "Wegatech powered by heimWatt" co-brand) is a German renewable energy system integrator founded in 2010 that sells and installs turnkey photovoltaic (PV) systems, battery storage, air-to-water heat pumps and EV charging wallboxes for private homeowners, small and medium-sized enterprises, and commercial property owners across Germany. The company has completed more than 4,500 projects over 14+ years of operating history and employs 101–250 staff across offices in Salzhausen (headquarters), Köln (Zollstockgürtel flagship showroom and Aachener Str.), and Norderstedt, with service coverage that extends to Berlin and Munich. Customers are acquired primarily through an SEO-driven Ratgeber content library, an online configurator, inside-sales advisors, regional info-day events and a €350 customer referral program.

The technical core of the offering is the proprietary smartY Energiemanager (with the Wegahome mobile app), which orchestrates third-party inverters (Fronius, Enphase, Sungrow), batteries (BYD, sonnen, E3/DC, Fronius Reserva, Enphase IQ Battery 5P), heat pumps (WOLF, Vaillant aroTherm plus) and, since 2024, the dynamic electricity market through partner rabot.energy — automatically shifting household loads to the cheapest pricing windows and, with a smart meter, achieving effective electricity costs under 10 ct/kWh. Hardware is sourced from OEMs; the differentiation sits in the integrated "alles aus einer Hand" delivery model (consultation, dimensioning, in-house installation, grid registration, commissioning), deep expertise in German subsidy applications (KfW 458, KfW 270, KfW 358/359, Berlin SolarPLUS via IBB Business Team), and consumer financing through Volksbank Köln Bonn (5.27% effective APR, 24–180 months, up to €75,000).

Wegatech monetizes primarily through one-time hardware sale and turnkey installation contracts, supplemented by recurring maintenance/service contracts for heat pumps and PV systems and a €350 dual-sided referral program. The company raised €10 million from German insurer Gothaer in October 2022 to accelerate B2B expansion, and was reorganized in 2024 as a brand of heimWatt GmbH, which is owner-led (inhabergeführt) with managing directors Henrik Morgenstern, Malte Twesten and Joost Hansen; founding executives Karl Dienst (Co-Founder, MD, CEO) and Philipp Wullner (Co-Founder, MD, CTO) are referenced in funding-record metadata. Customer reputation is documented by a TÜV Saarland "SEHR GUT (1.6)" certification (June 2024, n≈1,000) and a 4.80/5 ProvenExpert rating across 270 reviews.

Name

Wegatech

Legal name

Wegatech Greenergy GmbH

Website

https://wegatech.de

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

101–250 employees

Short description

Wegatech (a brand of heimWatt GmbH) is a German integrator that sells and installs turnkey photovoltaic, battery storage, heat pump and EV charging systems for private homeowners and SMEs, orchestrated by its proprietary smartY energy manager.

Ownership category

akta.pro rank

Product category

Renewable Energy Installation Services

NAICS

Solar Electric Power Generation (221114)

SIC

Electric Services (4911)

akta.pro primary industry

Renewable Distributed Generation (Rooftop/Onsite Solar, Small Wind, Small Hydro) (EUACALAJ)

akta.pro secondary industries

Distributed Storage (Behind-the-Meter Batteries) (EUAMAJAE), DERMS & Microgrid Control Software (EMS/SCADA/DERMS) (EUAMAJAG)

Keywords

• Solar PV installation
• Battery storage systems
• Heat pump installation
• Energy management software
• Renewable energy systems

Headquarters

HQ city

Munich

HQ country

Germany

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Renewable energy system sales & installation: One-time sale and turnkey installation of photovoltaic systems, hybrid inverters, battery storage, air-to-water heat pumps, wallboxes, and the smartY energy manager to private and small/medium commercial customers.
2. Maintenance & service contracts: Recurring maintenance contracts for heat pumps and PV systems, offered to extend product warranties and generate post-installation service revenue.
3. Referral / affiliate program: Customer referral program paying €350 to both referrer and referred customer on a successful conversion.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels8 records

Core offering

Wegatech (now operated as a brand of heimWatt GmbH) plans, sells, and installs turnkey renewable energy systems for German households and SMEs, combining photovoltaic modules, hybrid inverters, battery storage, air-to-water heat pumps, EV wallboxes, and the proprietary smartY/Wegahome energy manager. It also delivers large-scale PV and tenant electricity (Mieterstrom) projects via the parent heimWatt's PV-Großprojekte arm, with financing arranged in partnership with Volksbank Köln Bonn.

Product overview

Wegatech (operated by heimWatt GmbH as "Wegatech powered by heimWatt") sells an integrated platform-plus-modules renewable energy offering for private households and small-to-medium commercial customers. The core of the offering is the Solarkomplettpaket — a turnkey combination of Photovoltaikanlage, Stromspeicher (battery storage), Luft-Wasser-Wärmepumpe, Wallbox, and Wechselrichter — orchestrated by the in-house smartY Energiemanager (with its Wegahome mobile app), which optimizes self-consumption and dynamically reacts to the dynamic Stromtarif offered together with partner rabot.energy. Two commercial offerings (Photovoltaik für Gewerbe and the Mieterstrom-Konzept for rental and multi-family housing) extend the same product family to larger properties. The full package is delivered with in-house installer teams across multiple locations (Salzhausen, Köln, Norderstedt) and includes financing via Volksbank Köln Bonn.

Differentiator

Problem solved

Functional benefit

Brands

• Wegahome: Energiemanager app/system that connects PV systems, batteries, and consumers with the electricity market to minimize energy costs.
• smartY

Products and services

• Photovoltaikanlage (PV system) Grid-tied solar PV system sold as a turnkey package including modules, mounting, inverter, grid connection, and Bundesnetzagentur registration; sized 5-15 kWp typical for residential and up to commercial scale.
• Stromspeicher (Battery Storage) DC-coupled battery storage offered in combination with a new PV installation; uses hybrid inverters connecting the battery to the modules. Typical residential capacity 5-12 kWh, enabling self-consumption rates of 50-80% versus 30% without storage.
• Luft-Wasser-Wärmepumpe (Air-to-water heat pump) Air-to-water heat pump for space heating and domestic hot water; converts ambient heat (75%) plus electricity (25%) into approximately four units of heat per unit of electricity. Suitable for new builds and older buildings post-1995 with envelope optimization.
• Wallbox (EV charging station) EV charging wallbox sold as part of the renewable energy package to charge electric vehicles with self-generated solar power; integrated with smartY energy manager for PV- and price-optimized charging.
• smartY Energiemanager / Wegahome In-house energy management system that connects the PV system, battery storage, wallbox, heat pump, and the dynamic electricity market. Optimizes consumption timing to minimize energy cost and provides a Wegahome app for monitoring autarky, battery state of charge, feed-in, and consumption.
• Wechselrichter (Hybrid inverter) Hybrid inverters (e.g., Sungrow) that connect solar modules and battery storage; Wegatech installs hybrid inverters exclusively because they integrate both the PV string and the battery into one device.
• Mieterstrom-Konzept (Tenant electricity concept) PV system concept for multi-family and rental properties that supplies tenants with on-site solar power cheaper than grid electricity and yields up to 15% return for the property owner; also offered by heimWatt for commercial applications.
• Systemlösungen (Integrated energy system package) Combined package of photovoltaic, battery storage, energy management, heat pump, and optional wallbox designed to maximize self-consumption and cost savings; also combinable with a dynamic electricity tariff for cheap residual supply.
• Photovoltaik für Gewerbe (Commercial PV) Commercial-scale photovoltaic offerings for businesses, including rooftop PV, ground-mounted PV, storage systems, charging infrastructure, and tenant electricity; run via heimWatt's PV-Großprojekte division to support social institutions and housing industry verticals.

Quantifiable outcome

• Up to ~80% reduction in household electricity costs with PV + battery storage.
• +3 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration10 records

AI capability5 records

Feature3 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• WOLF (Wärmepumpen / Heiztechnik)coreOEM/ Whitelabel/ Licensing PartnerheimWatt is a WOLF partner installing WOLF heat pumps as its primary heat-pump offering, with WOLF providing a 5-year product guarantee handled through heimWatt.
• Vaillant (aroTherm plus heat pumps)coreTechnology or IntegrationVaillant heat pumps (notably aroTherm plus) are showcased and sold across the Wegatech site, including customer case studies (e.g., Familie in Munich).
• Rabot EnergyminorGTM or Marketing PartnerRabot Energy partner logo displayed on heimWatt site, with partner URL linking to rabot.energy/partner/heimwatt.
• smartY / Wegahome (proprietary energy manager)coreTechnology or IntegrationsmartY is the proprietary AI-driven energy manager (and Wegahome its branded app) used across PV + storage + heat pump + wallbox + dynamic-tariff installations.
• Bundesverband Wärmepumpe (bwp)minorGTM or Marketing PartnerIndustry-association partner logo displayed on heimWatt site linking to waermepumpe.de.
• BSW SolarminorGTM or Marketing PartnerIndustry-association partner logo for the German solar industry displayed on heimWatt site linking to solarwirtschaft.de.
• IBB Business Team GmbH (Berlin SolarPLUS)minorImplementation/ SI/ Consulting PartnerBerlin's investment bank subsidiary administers the SolarPLUS subsidy program that Wegatech/heimWatt helps Berlin customers apply for.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• 1Komma5°: German residential and commercial renewable-energy installer offering turnkey PV, storage, heat pumps and EV charging with a proprietary energy-management platform. Direct head-to-head competitor to Wegatech in the German 'Alles-aus-einer-Hand' segment, with a much larger venture-backed footprint.
• Enpal: Berlin-based residential PV, battery and heat-pump installer offering turnkey systems and subscription/financing models to German homeowners. Competes with Wegatech for the same single-family and small-commercial customer, with a heavier focus on leasing and subscription-style offers.
• Zolar: Online-first German PV and storage installer that funnels customers to regional installation partners. Comparable to Wegatech in target customer (private homeowners) and product mix (PV + storage), but uses a marketplace model rather than in-house crews.
• Solarwatt: Dresden-based PV module and glass-glass panel manufacturer that also sells turnkey residential PV and battery systems in Germany. Direct peer because it sells an integrated PV + storage + EMS offering to the same German homeowner segment as Wegatech, with the added angle of in-house panel manufacturing.

Broad incumbents

• E.ON: Large German energy utility with residential and SME offerings in PV, storage, heat pumps, wallboxes and dynamic tariffs. Overlaps with Wegatech across the full residential renewable stack but as part of a much broader utility portfolio rather than a specialist installer.
• EnBW: Major German energy supplier offering residential PV, heat pumps, EV charging and home-energy solutions. Comparable customer base and product scope to Wegatech but typically delivered via partner installers rather than wholly in-house delivery crews.
• Viessmann: German heating OEM (now part of Carrier) selling heat pumps and integrated home-energy systems through installer networks. Overlaps with Wegatech's heat-pump-led offering and adjacent to its Vaillant/WOLF installations, with a broader climate-solutions portfolio.
• SMA Solar Technology: Germany-headquartered inverter and home-energy-management OEM serving residential and commercial PV customers. Comparable technology layer to Wegatech's hybrid-inverter + smartY stack and increasingly active in turnkey residential energy systems.

Emerging players

• sonnen (Shell-owned): German residential battery-storage and virtual-power-plant provider, integrated into Shell's home-energy strategy. Comparable to Wegatech's battery-storage line and EMS ambitions, but more software/aggregator-led and less focused on full turnkey PV + heat-pump delivery.

Others

• Fronius: Austrian inverter and battery-storage OEM whose hybrid inverters and Fronius Reserva storage Wegatech installs. Adjacent ecosystem participant — an upstream equipment supplier and technology partner rather than a direct installer competitor.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/c/Wegatech
• Facebookde-de.facebook.com/wegatech
• LinkedInde.linkedin.com/company/wegatech-greenergy-gmbh
• Instagraminstagram.com/wegatech_de
• Pinterestpinterest.de/wegatech_de

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds2 records

Investors1 record

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 Wegatech