Rooftop Energy
Rooftop Energy (now Groendus/Kenter Groendus) is a Dutch integrated energy solutions provider serving MKB to industrial businesses with solar panels, battery storage, EV charging, PPAs, energy trading, and congestion management through its EnergieMarktplaats platform.
- Company typePrivate
- Founded2012
- HeadquartersRotterdam, Netherlands
- Headcount11–50
- GTM typeB2B
- OfferingServices
Rooftop Energy firmographics
Firmographics- Name
- Rooftop Energy
- Legal name
- Groendus Groep BV
- Website
- https://rooftopenergy.nl
- Company type
- Private
- Founded year
- 2012
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Rooftop Energy (now Groendus/Kenter Groendus) is a Dutch integrated energy solutions provider serving MKB to industrial businesses with solar panels, battery storage, EV charging, PPAs, energy trading, and congestion management through its EnergieMarktplaats platform.
- Ownership category
- akta.pro rank
Rooftop Energy industry classification
Industry- Product category
- Commercial Energy Solutions
- NAICS
- Solar Electric Power Generation (221114), Electric Power Generation, Transmission and Distribution (2211)
- SIC
- Electric Services (4911), Cogeneration Services & Small Power Producers (4991)
- akta.pro primary industry
- Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System) (EUAMABAB)
- akta.pro secondary industries
- Renewable Distributed Generation (Rooftop/Onsite Solar, Small Wind, Small Hydro) (EUACALAJ), Distributed Storage (Behind-the-Meter Batteries) (EUAMAJAE), Microgrid Development, EPC & Integration (EUAMAJAB), Solar Roofing & Roof-Mounted PV Systems (IMADAFAO), C&I Onsite/Behind-the-Meter Energy Supply (Solar, CHP, Microgrids) (EUAGACAJ), Distributed Generation (DG) Solar & Small Wind (EUAMAJAD)
Keywords
Where Rooftop Energy is headquartered
LocationHeadquarters
- HQ city
- Rotterdam
- HQ country
- Netherlands
- HQ region
- Europe
Offices1 record
Markets served
Rooftop Energy business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Annual | Green energy contracts with fixed terms |
Distribution channels2 records
Marketing channels4 records
Rooftop Energy product offering
Product offeringCore offering
Rooftop Energy (now operating as Groendus/Kenter Groendus) installs and maintains integrated sustainable energy solutions for Dutch businesses, spanning solar panels, battery storage, EV charging, transformers, metering, and energy management. Through its EnergieMarktplaats platform, it also enables businesses to trade locally generated solar and wind energy, addressing grid congestion challenges via energy hubs and closed distribution systems.
Product overview
Groendus (formerly Rooftop Energy) offers an integrated energy platform for the Dutch business market, ranging from SMB to industry. The portfolio consists of core hardware and service products (solar panels, EV charging, batteries, transformers, metering, energy management, and maintenance) combined with eight specialized solution products (OpbrengstOpwekker, ZonneBater, StroomLijner, RuimteMaker, EnergieMarktplaats, NetWerker, SlimLader, and ThuisLader) that address specific challenges like grid congestion, energy trading, and smart charging. The company recently merged with Kenter to form Kenter Groendus, expanding its capabilities in energy management and grid optimization.
Differentiator
Problem solved
Functional benefit
Brands
- EnergieMarktplaats: Energy marketplace for buying and selling solar and wind energy locally
- OpbrengstOpwekker
- ZonneBater
- StroomLijner
- RuimteMaker
- NetWerker
- SlimLader
- ThuisLader
Products and services
- Zonnepanelen (Solar Panels)
Quantifiable outcome
- Direct energy cost savings
- +1 more outcomes
Companies that use Rooftop Energy
Customer profileNamed customers17 records
Segments1 record
Ideal customer profiles2 records
Rooftop Energy technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
Rooftop Energy partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- KentercoreGroendus and Kenter merged to form Kenter Groendus, combining their expertise in sustainable energy solutions for businesses. This merger creates a comprehensive energy solutions provider for the Dutch business market.
Scale indicators1 record
Recent moves6 records
Expansion highlights5 records
Rooftop Energy competitors and assessment
Company assessmentBroad incumbents
- Vattenfall: Vattenfall is a large European utility with significant Dutch operations in wind, solar, heat, and EV charging. It is a broad incumbent whose enterprise decarbonization offerings overlap with Rooftop Energy's B2B platform.
- Engie: Engie is a global utility with Dutch operations spanning energy supply, solar, storage, and energy services for business customers. Its broad portfolio makes it a comparable incumbent against which Rooftop Energy's integrated offering competes.
- Eneco: Eneco is a major Dutch energy company with broad offerings across retail electricity, business energy, wind, solar, and heat. It is a broad incumbent that competes with Rooftop Energy across multiple product lines.
Direct peers
- Solarfields: Solarfields is a Dutch developer of commercial and utility-scale solar projects, often financed via PPAs. It competes directly with Rooftop Energy in the C&I and ground-mount solar development pipeline in the Netherlands.
- Vandebron: Vandebron operates a Dutch energy marketplace that connects local renewable producers with business and consumer offtakers. Its marketplace model closely parallels Rooftop Energy's EnergieMarktplaats platform, making it a strong functional peer.
- KiesZon: KiesZon provides turnkey solar PV solutions and energy storage for Dutch businesses and institutions. It overlaps directly with Rooftop Energy's core solar installation and storage offerings for the B2B market.
- NextEnergy: NextEnergy is a Dutch installer focused on commercial solar, EV charging, and energy storage for businesses. It competes head-to-head with Rooftop Energy on mid-market and enterprise solar-plus-storage deployments.
- Sunrock: Sunrock develops and operates large-scale rooftop and ground-mounted solar PV systems for commercial and industrial customers across the Netherlands. It is a direct peer to Rooftop Energy's core C&I rooftop solar EPC and PPA business.
Emerging players
- Zonneplan: Zonneplan is a Dutch integrated solar, storage, and EV-charging provider with a strong software-driven platform. While historically more residential, it is an emerging peer in integrated energy solutions for Dutch customers.
Regional players
- Pure Energie: Pure Energie is a Dutch green energy retailer and developer focused on 100% renewable supply for consumers and businesses. Its combined supply-and-generation model is thematically comparable to Rooftop Energy's marketplace and PPA offerings in the same domestic market.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
Rooftop Energy social profiles
Digital presenceRooftop Energy compliance and trust
Trust signalCompliance1 record
Rooftop Energy financial estimates
Financial estimateRevenue estimate
Valuation estimate
Rooftop Energy leadership team
Management profileNumber of profiles
Profiles1 record
Rooftop Energy funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Rooftop 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 Rooftop Energy
What does Rooftop Energy do?
Rooftop Energy (now operating as Groendus/Kenter Groendus) installs and maintains integrated sustainable energy solutions for Dutch businesses, spanning solar panels, battery storage, EV charging, transformers, metering, and energy management. Through its EnergieMarktplaats platform, it also enables businesses to trade locally generated solar and wind energy, addressing grid congestion challenges via energy hubs and closed distribution systems.
Is Rooftop Energy a public or private company?
Rooftop Energy is a private company. It is classified as unknown and is currently operating.
When was Rooftop Energy founded?
Rooftop Energy was founded in 2012. It employs 11 to 50 people.
Where is Rooftop Energy based?
Rooftop Energy is headquartered in Rotterdam, Netherlands, in the Europe region.
Who are Rooftop Energy's main competitors?
Broad incumbents on record are Vattenfall, Engie and Eneco. Direct peers are Solarfields, Vandebron, KiesZon, NextEnergy and Sunrock. Zonneplan is listed as an emerging player. Pure Energie is listed as a regional player.
Does Rooftop Energy have an API?
No public API is recorded for Rooftop Energy.
What industry is Rooftop Energy in?
Rooftop Energy's product category is Commercial Energy Solutions. Its primary akta.pro industry code is EUAMABAB, Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System), with a secondary code of EUACALAJ, Renewable Distributed Generation (Rooftop/Onsite Solar, Small Wind, Small Hydro). Its NAICS code is 221114 and its SIC code is 4911.