EnergyKing

What EnergyKing does

EnergyKing is a Belgian engineering bureau (ingenieursbureau) founded in 2013 in Leuven by two engineers, Lucas and Wiet, that designs, sells, and installs integrated renewable energy systems for residential and commercial customers across Belgium. Its core product portfolio comprises solar panels (Zonnepanelen), home batteries (Thuisbatterij), EV charging stations (Laadpaal), air conditioning (Airco), heat pumps (Warmtepompen), and ventilation systems (Ventilatie). These hardware offerings are unified by KingConnect, the company's proprietary energy management platform app that monitors and optimizes all installed devices from a single interface, with EnergyKing claiming up to 50% higher installation yield and equipment lifespan extension up to 2x through proper maintenance.

The company operates a direct, sales-led go-to-market model through a six-branch network across Belgium, with in-house technical teams performing all installations and servicing rather than subcontracting. Its 6-step sales process moves customers from initial website or phone request through advisory consultation, personalized quote, technical site visit, installation, and ongoing service and maintenance. Revenue is generated primarily through one-time installation sales with quote-based pricing, complemented by recurring subscription-style service and maintenance plans that include 48-hour emergency response. The customer base spans both residential (primary) and commercial (Zakelijk) segments, with the company reporting 10,000+ satisfied customers and a 4.5/5 rating across 257 reviews.

EnergyKing employs between 11 and 50 staff, operates six Belgian branches (Herent, Kampenhout, Ninove, Hechtel-Eksel, Aalst, Tessenderlo), and supports its market presence through content marketing via its School of Energy blog, customer reviews and testimonials, information sessions (infosessies), newsletter engagement, and dedicated careers recruitment. There is no disclosed institutional funding, parent company, or M&A activity in the source material; the company remains privately held by its founders.

Name

EnergyKing

Legal name

EnergyKing

Website

https://energyking.be

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

51–100 employees

Short description

EnergyKing is a Belgian engineering bureau founded in 2013 that designs, installs, and services integrated renewable energy systems, including solar panels, batteries, heat pumps, EV chargers, HVAC, and ventilation, unified by its proprietary KingConnect energy management platform, serving residential and commercial customers across Belgium through six branch locations.

Ownership category

akta.pro rank

Product category

Residential Renewable Energy Installation

NAICS

Solar Electric Power Generation (221114)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Residential HVAC System Installation (Furnace/AC/Heat Pump) (HSAOAGAA)

Headquarters

HQ city

Leuven

HQ country

Belgium

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Product Sales and Installation: EnergyKing sells and installs complete renewable energy systems including solar panels, home batteries, EV charging stations, heat pumps, air conditioning, and ventilation systems. Revenue is generated through one-time product sales combined with professional installation services.
2. Service and Maintenance Plans: Ongoing service contracts providing periodic maintenance and 48-hour emergency response support to ensure installations remain in optimal condition, extending equipment lifespan up to 2x longer.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

EnergyKing is a Belgian engineering bureau that sells and installs renewable energy systems for homes and businesses across Belgium, including solar panels, home batteries, EV charging stations, heat pumps, air conditioning, and ventilation systems. Installations are integrated with the company's proprietary KingConnect energy management platform, and ongoing service and maintenance contracts are offered to keep systems operating optimally.

Product overview

EnergyKing is an engineering firm offering a portfolio of renewable energy products and sustainable home technology solutions. The core offering consists of solar panels (Zonnepanelen), home batteries (Thuisbatterij), EV charging stations (Laadpaal), air conditioning (Airco), heat pumps (Warmtepompen), and ventilation systems (Ventilatie). These are complemented by KingConnect, an energy management system app that connects and optimizes all installed devices for up to 50% more performance. Service and maintenance packages are available to ensure long-term reliability of installations. The company operates as an installation and service provider primarily serving the Belgian residential and commercial markets.

Differentiator

Problem solved

Functional benefit

Brands

• KingConnect: Energy management system (EMS) app that allows users to monitor and control their energy installations, maximizing efficiency and savings.

Products and services

• Zonnepanelen (Solar Panels)
• Thuisbatterij (Home Battery)
• Laadpaal (EV Charging Station)
• Airco (Air Conditioning)
• Warmtepompen (Heat Pumps)
• Ventilatie (Ventilation)
• KingConnect Energy Management System
• Service and Maintenance Plan

Quantifiable outcome

• Up to 50% more yield from installations through smart energy management
• +2 more outcomes

Segments2 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Daikin: Global leader in air conditioning and heat pump manufacturing with strong European installer network. Comparable as a broad incumbent in the residential heat pump and AC categories that EnergyKing competes in, though Daikin operates upstream while EnergyKing is a downstream installer/integrator.
• Viessmann: Major European manufacturer of heat pumps, heating, and integrated home energy solutions. Relevant peer because heat pump installation is a core EnergyKing offering; Viessmann sells through installer networks similar to EnergyKing's model.
• Tesla Energy: Provider of Powerwall home battery, Solar Roof, and Wall Connector EV charging with integrated monitoring software. Comparable to EnergyKing's home battery, EV charger, and integrated energy management offerings, though at much larger scale and with proprietary hardware.
• Engie Belgium: Belgian retail energy and residential services arm of global utility Engie, increasingly offering solar, heat pump, and EV charging bundles to households. Comparable as a Belgium-focused residential energy solutions provider with deeper balance sheet, financing options, and brand reach than EnergyKing.
• NIBE: Swedish heat pump and residential climate solutions company with strong European footprint. Comparable as a heat pump specialist serving residential customers through installers, overlapping with EnergyKing's Warmtepompen business.
• Luminus: Belgian energy supplier (part of EDF group) offering residential solar panels, heat pumps, and EV charging solutions. Comparable as a Belgian residential renewables competitor leveraging an existing utility customer base and financing capability that EnergyKing does not have.

Direct peers

• Smappee: Belgian-headquartered smart energy management company offering home energy monitors, EV chargers, and solar/battery integration. Highly comparable to EnergyKing given shared Belgian base, residential focus, and overlap on EV charging, solar, and energy management (analogous to KingConnect).
• Niko: Belgian home automation and electrical installation specialist with Niko Home Control platform integrating HVAC, ventilation, and energy devices. Comparable as a Belgian residential installer with proprietary smart home / energy orchestration software, mirroring EnergyKing's HVAC-plus-KingConnect stack.

Emerging players

• Enphase Energy: Global supplier of microinverters and the Enphase IQ Energy Management platform for residential solar and battery systems. Comparable to the KingConnect software layer given the focus on per-device monitoring, optimization, and energy yield — a direct functional analog to EnergyKing's value proposition.

Others

• Honeywell: Global building technologies provider with HVAC controls, energy management platforms, and residential climate solutions. Relevant as an adjacent ecosystem participant in connected home energy management comparable to the KingConnect platform's monitoring and optimization function.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/energyking_be
• Facebookfacebook.com/EnergykingBelgium
• LinkedInlinkedin.com/company/energykingbelgium

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 EnergyKing