Four Energy
Four Energy is a Netherlands-based sustainable energy supplier that designs, finances and operates integrated smart heating and energy systems - using WKO, ATES, heat pumps and solar - for Dutch housing corporations, property developers and residential end users.
- Company typePrivate
- Founded2020
- HeadquartersZwanenburg, Netherlands
- Headcount1–10
- GTM typeB2B and B2C
- OfferingServices
What Four Energy does
Four Energy is a Netherlands-based sustainable energy supplier, founded in 2020 and headquartered in Zwanenburg, that designs, finances, realises and operates integrated smart energy systems for residential and commercial buildings. Its core offering centres on collective heat supply delivered through heating networks and block-heating installations, drawing on combinations of WKO (heat-cold storage via underground aquifers), ATES, Bronsysteem ground-source loops at depths exceeding 200 metres, air- and water-sourced heat pumps, photovoltaic solar panels, batteries and a MicroGrid architecture introduced in 2026 to circumvent Dutch grid congestion. The company operates two customer divisions - Four Thuis for residential end users and Four Business for commercial customers - and offers four service pillars: feasibility studies (qualifying for the Flex-e subsidy), development and realisation, ongoing exploitation and operation, and asset rental via monthly SEPA direct debit.
The company's revenue model combines recurring heat supply tariffs (regulated under the Warmtewet/Heat Act, billed monthly at project-specific rates), subscription-based equipment rental, long-term managed-services exploitation contracts (frequently 20-25 years, as in the VvE Somerparc ATES agreement), and project-based professional services revenue from feasibility and development work. Four Energy is a subsidiary within the Bussola Group alongside Sturm (knowledge partner) and Schouten Techniek (technical partner), with istaDES managing customer billing for housing-corporation accounts. The go-to-market is sales-led, targeting Dutch housing corporations and property developers through tenders and direct sales, with a stated ambition to serve 25,000 homes and offices by 2030 versus approximately 3,200 current heat connections and 500+ residences under exploitation. Anchor clients include Elan Wonen, Qua Wonen, Area, Ymere, MRP/VORM, BPD Ontwikkeling and HSB, with named projects spanning Haarlem, Heemstede, Krimpenerwaard, Amsterdam, Wassenaar, Uden, Wekerom, Hoorn, Alkmaar and Den Haag.
Four Energy firmographics
Firmographics- Name
- Four Energy
- Legal name
- Four Energy
- Website
- https://fourenergy.nl
- Company type
- Private
- Founded year
- 2020
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Four Energy is a Netherlands-based sustainable energy supplier that designs, finances and operates integrated smart heating and energy systems - using WKO, ATES, heat pumps and solar - for Dutch housing corporations, property developers and residential end users.
- Ownership category
- akta.pro rank
Four Energy industry classification
Industry- Product category
- District Heating & Sustainable Energy Services
- NAICS
- Steam and Air-Conditioning Supply (221330), Solar Electric Power Generation (221114)
- SIC
- Cogeneration Services & Small Power Producers (4991), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)
- akta.pro primary industry
- Microgrid Development, EPC & Integration (EUAMAJAB)
- akta.pro secondary industries
- Community Microgrids & Shared Distributed Generation (EUACALAC), District Energy & CHP-Based Microgrids (Thermal Networks + Power) (EUACALAL), Distributed Storage (Behind-the-Meter Batteries) (EUAMAJAE), Microgrid, DER & Building Electrification Energy Controls (Solar/Storage/EV Load Orchestration) (BPABAGAJ)
Keywords
Where Four Energy is headquartered
LocationHeadquarters
- HQ city
- Zwanenburg
- HQ country
- Netherlands
- HQ region
- Europe
Offices1 record
Markets served
Four Energy business model
Business model- GTM type
- B2B and B2C
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales, Supply Chain
Revenue model
- Heat Supply Contracts: Four Energy supplies heat to residential complexes via heating networks and block heating systems. Residents pay for heat supply based on published heat rates per project. Revenue is recurring from ongoing heat delivery contracts with individual households connected to the network.
- Energy System Rental: Four Energy invests in and operates energy systems (heat pumps, WKO installations, solar panels) and rents them to residents. Monthly rental fees are collected on the first working day of each month via SEPA direct debit. Residents can alternatively buy out the heat pump within 3 months of property completion.
- Exploitation and Operation of Energy Systems: Four Energy handles the full lifecycle of energy systems: development, realization, and ongoing proactive operation. They can include investment costs in the operational contract, meaning the capital investment rests with Four Energy. Revenue comes from long-term operational contracts with housing corporations, VvEs, and developers.
- Feasibility Studies: Four Energy conducts feasibility studies for smart and sustainable energy systems, analyzing consumption profiles and identifying optimal configurations. Studies qualify for the Flex-e subsidy and are technology and supplier independent. This is a professional services revenue stream.
- Development and Realisation: Following feasibility studies, Four Energy elaborates the technology and business case in detail and oversees implementation of energy systems from a single point of contact, collaborating with installers including Schouten Techniek. Revenue is project-based professional services.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Usage-based | Monthly | Heat supply rates vary by project based on heat source and heating network costs |
| Subscription | Monthly | Energy system rental for heat pumps, WKO, and solar installations |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels6 records
Four Energy product offering
Product offeringCore offering
Four Energy supplies sustainable heat to residential and commercial buildings through heating networks and collective heating systems across the Netherlands. The company develops, realises, finances, and operates integrated energy systems combining heat pumps, ground-source (WKO/ATES) loops, bronze borehole systems, solar PV, batteries, and smart control to deliver heating, cooling, hot water, and electricity without natural gas. Its MicroGrid solution addresses grid congestion, enabling housing construction projects to proceed when full electricity grids would otherwise block new connections.
Product overview
Four Energy is a sustainable energy supplier offering integrated heat and energy solutions through two main divisions: Four Thuis (residential) and Four Business (commercial). The product portfolio includes core heat supply services through heating networks and collective systems, complemented by three service pillars: Feasibility Studies (analyzing optimal energy configurations), Development and Realisation (designing and implementing systems), and Exploitation and Operation (proactive management). Key products include MicroGrid for grid congestion challenges, Smart Energy Systems utilizing local residual heat and geothermal sources, ground source systems (Bronsysteem), ATES installations, WKO (heat-cold storage), heat pumps, PV/solar installations, and heat metering. The company targets housing corporations, project developers, and businesses seeking to disconnect from natural gas through sustainable heating solutions.
Differentiator
Problem solved
Functional benefit
Products and services
- Heat Supply (Warmtelevering) Core service supplying sustainable heat to residential and commercial buildings via heating networks and collective heating systems, using local residual heat, geothermal energy, and heat pumps; billed per project-specific heat rate to connected households and businesses.
- Feasibility Study (Haalbaarheidsstudie) Technology- and supplier-independent analysis of feasible sustainable energy system options for a building or portfolio, including natural-gas disconnection, electric conversion, or business-process optimisation; qualifies for the Flex-e subsidy.
- Development and Realisation (Ontwikkeling en Realisatie) Full design and business-case elaboration for sustainable energy systems, followed by implementation under a single point of contact, in collaboration with installers such as Schouten Techniek.
- Exploitation and Operation (Exploitatie en Beheer) Proactive management, monitoring, and operation of energy systems including market-development optimisation, asset management, and optional investment financing by Four Energy; delivered via long-term operational contracts with housing corporations, VvEs, and developers.
- MicroGrid Innovative localised energy generation and distribution solution that enables residential construction projects to proceed despite full electricity grids and changing regulations, by combining on-site generation with smart storage and control.
- Smart Energy Systems (Slimme Energiesystemen) Integrated energy solutions utilising local residual heat, heat from water, air, and ground, combined with green electricity to heat and cool buildings sustainably without natural gas; tailored configurations per project.
- Bronsysteem (Ground Source System) Borehole loop systems installed underground enabling heat extraction from the earth for winter heating and summer cooling, with approximately 13,750 meters of borehole piping at depths exceeding 200 meters.
- WKO (Warmte-Koude Opslag) Heat-cold storage system using underground aquifers for seasonal thermal energy storage, enabling sustainable heating and cooling of buildings, often combined with heat pump technology.
- ATES (Aquifer Thermal Energy Storage) Aquifer-based thermal energy storage system for seasonal heating and cooling, combined with heat pump technology.
- Heat Network / District Heating Connection to local heating networks distributing heat from central sources to multiple homes or businesses via underground pipes; operated and maintained by Four Energy.
- Energy System Rental Monthly rental of Four Energy-owned and operated heat pumps, WKO installations, and solar PV systems to residents, collected via SEPA direct debit, with an option to buy out the heat pump within 3 months of property completion.
Quantifiable outcome
- 3,200 heat supply connections
- +3 more outcomes
Companies that use Four Energy
Customer profileNamed customers11 records
Segments3 records
Ideal customer profiles3 records
Four Energy technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration11 records
Feature5 records
Four Energy partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered flagship, core and minor.
- MRP and VORM (De Zuid CV)flagshipDe Zuid CV (a collaboration between MRP and VORM) selected Four Energy for the Mares project — a high-end residential development with 98 luxury apartments and penthouses in Scheveningen, Den Haag. Four Energy will realise and operate the innovative sustainable heat system.
- BPD OntwikkelingcoreBPD Ontwikkeling selected Four Energy to provide sustainable heating for 76 apartments across 3 of 5 residential buildings at the Buitenvaart Alkmaar development. Four Energy is responsible for the bronze system installation and ongoing heat supply operation.
- SturmcoreSturm is a knowledge partner of Four Energy, providing expertise in civil engineering and sustainable energy project financing. Together with Schouten Techniek, Sturm forms the knowledge and technical partnership that underpins Four Energy's operations. Both Sturm and Four Energy are part of the Bussola Group, operating independently while complementing each other.
- Schouten TechniekcoreSchouten Techniek is the technical partner responsible for installing both central heat sources and in-home delivery units (afleversets) on behalf of Four Energy. They have over 30 years of combined experience with Sturm. At PROVADA 2026, Four Energy and Schouten Techniek jointly presented the MicroGrid innovation. Schouten Techniek is also part of the Bussola Group.
- istaDEScoreistaDES manages the entire heat installation for housing corporation accounts (e.g., Elan Wonen, Area). While tenants contract directly with Four Energy for heat supply, istaDES handles customer contact and energy cost settlement. They work closely with Four Energy in a long-term operational partnership.
- YmereflagshipYmere, a Dutch housing corporation, selected Four Energy as the operator of the heat system for the Oostpoort project in Haarlem — approximately 100 social rental homes. Ymere develops the building while Four Energy invests in, develops, realises, and maintains the central heat source and in-home installation.
- HSBflagshipHSB is the construction partner for the Oostpoort project in Haarlem, responsible for building the residential complex. The building is constructed from wood — a sustainable building method that significantly reduces CO2 emissions, making it the tallest wooden residential building in the Netherlands at 33 meters.
- INBOminorINBO is an architecture firm whose design was used for the Oostpoort residential tower project in Haarlem.
- Energiecooperatie Hooien als de zon schijntminorEnergy cooperative representing current residents of the Eikstraatkwartier area in Hoorn, participating in the Energy Collectief Eikstraatkwartier initiative alongside Four Energy, Ontwikkelcombinatie Eikstraatkwartier BV, IKC Mariaschool, MKC Montessorischool, Dick Laan Stichting, and the municipality of Hoorn.
Scale indicators11 records
Recent moves6 records
Expansion highlights7 records
Four Energy competitors and assessment
Company assessmentBroad incumbents
- E.ON: Large European utility with district heating and energy solutions across European markets including the Netherlands. Comparable as a broad incumbent in sustainable heat and integrated energy services.
- ENGIE: Global energy and utility player with district heating and energy services in the Netherlands. Comparable as a broad incumbent offering heat networks and integrated energy solutions at larger scale.
- HVC: Dutch energy and waste company producing heat, green gas, and electricity; operates heating networks for residential and commercial customers. Comparable as a larger, broader sustainable energy and heat utility in the Netherlands.
Direct peers
- Vattenfall (Netherlands): Operates district heating in the Netherlands and invests in heat networks and sustainable heating. Comparable for heat supply to residential complexes and integrated energy solutions.
- NieuweWarmte: Dutch heat network developer and operator focused on geothermal and sustainable heat for residential developments. Comparable niche player in Dutch sustainable district heating.
- Ennatuurlijk: Dutch heat network operator supplying sustainable heat to residential and commercial customers. Most directly comparable to Four Energy given the same district heating / collective heating model in the Netherlands.
- Eneco: Major Dutch sustainable energy supplier with district heating networks and integrated energy solutions. Comparable as a heat-network operator and renewable energy supplier serving housing corporations and B2C customers.
Regional players
- WarmteStad: Municipal heat network operator in Northern Netherlands (Groningen) supplying sustainable heat to homes and buildings. Comparable district heating operator, but operates in a different geography from Four Energy.
Others
- Schouten Techniek: Technical installation partner of Four Energy and fellow Bussola Group company, executing heating and energy installations. Comparable as an installer of heat pump and energy systems for residential and commercial projects; also a key operational partner of Four Energy.
- Remeha: Dutch heating equipment manufacturer and supplier of heat pumps, boilers, and integrated heating systems. Comparable as a supplier of heat pump and integrated heating technology for residential buildings in the Netherlands.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Four Energy social profiles
Digital presenceFour Energy financial estimates
Financial estimateRevenue estimate
Valuation estimate
Four Energy leadership team
Management profileNumber of profiles
Profiles12 records
Four Energy funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Four Energy 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 Four Energy
What does Four Energy do?
Four Energy supplies sustainable heat to residential and commercial buildings through heating networks and collective heating systems across the Netherlands. The company develops, realises, finances, and operates integrated energy systems combining heat pumps, ground-source (WKO/ATES) loops, bronze borehole systems, solar PV, batteries, and smart control to deliver heating, cooling, hot water, and electricity without natural gas. Its MicroGrid solution addresses grid congestion, enabling housing construction projects to proceed when full electricity grids would otherwise block new connections.
Is Four Energy a public or private company?
Four Energy is a private company. It is classified as corporate owned and is currently operating.
When was Four Energy founded?
Four Energy was founded in 2020. It employs 1 to 10 people.
Where is Four Energy based?
Four Energy is headquartered in Zwanenburg, Netherlands, in the Europe region.
How does Four Energy make money?
Five revenue lines are on record. Heat Supply Contracts are the primary driver. The others are energy System Rental, exploitation and Operation of Energy Systems, feasibility Studies and development and Realisation.
Who are Four Energy's main competitors?
Broad incumbents on record are E.ON, ENGIE and HVC. Direct peers are Vattenfall (Netherlands), NieuweWarmte, Ennatuurlijk and Eneco. WarmteStad is listed as a regional player. Others are Schouten Techniek and Remeha.
Does Four Energy have an API?
No public API is recorded for Four Energy.
What industry is Four Energy in?
Four Energy's product category is District Heating & Sustainable Energy Services. Its primary akta.pro industry code is EUAMAJAB, Microgrid Development, EPC & Integration, with a secondary code of EUACALAC, Community Microgrids & Shared Distributed Generation. Its NAICS code is 221330 and its SIC code is 4991.