What Järfälla Energi AB does

Järfälla Energi AB is a privately held Swedish electrical-installation firm headquartered in Järfälla, Stockholm, with 13 employees and a second service area in Malmö. The company sells and installs solar PV systems, battery energy storage and EV charging equipment for residential homeowners and housing cooperatives (BRF) in the Stockholm region and across Sweden. It carries certified, IFSEK-rated inspection-ready installations using its own electricians, with the same project manager accountable from the first customer contact through commissioning. Named reference projects include a 944-panel BRF installation in Barkarby (Huawei 43 kW inverters, 335 MWh estimated annual production), multi-orientation villa arrays, and remote-summerhouse installations near Åkersberga.

The product portfolio spans Sigenergy SigenStor 5-in-1 hybrid systems (inverter, battery, DC EV charger, EMS, AI), Dyness Stack 100 PRO batteries bundled with Solis hybrid inverters and CheckWatt AI, Pylontech Force H3 batteries with Ferroamp or Solis, and a broad EV-charger line-up from Easee, Zaptec (V2G-ready), Tesla, Charge Amps, and DEFA. Dynamic load balancing is offered via integrations with Easee Equalizer, Enegic Monitor, Charge Amps Amp Guard, Tibber Pulse and DEFA Home CLU. Technical content is published through an active blog and service-area pages covering 16 municipalities.

Revenue is generated primarily through one-time hardware sale plus installation fees priced 5,990-53,000 kr per system (post green-tech tax deduction where eligible), with grid services monetised through CheckWatt on Dyness/Solis packages. The company has layered a recurring component via three-tier service contracts at 49, 99 and 199 kr/month, plus billable remote and on-site troubleshooting at 995 and 4,500 kr respectively. Go-to-market is direct-to-consumer and direct enterprise field sales via own electricians, supported by an owned e-commerce webshop and SEO-led content marketing; no third-party resellers or external sales staff are used.

Name

Järfälla Energi AB

Legal name

Järfälla Energi AB

Website

https://jarfallaenergi.se

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Järfälla Energi AB is a 13-person Swedish electrical-installation firm selling and installing solar PV, battery storage, and EV charging equipment for residential homeowners, housing cooperatives, and commercial property clients in the Stockholm region and across Sweden, with its own electricians delivering certified, inspection-ready installations.

Ownership category

akta.pro rank

Product category

Residential Solar Installation & Energy Storage Services

SIC

Electrical Work (1731)

akta.pro primary industry

Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System) (EUAMABAB)

akta.pro secondary industries

EV Charger (Level 2) Installation & Load Management (HSAOADAG), EV Charger Operations, Maintenance & Field Service (O&M) (TLAKAMAF), EV Charging Operations & Parking-Lot Electrification Management (BPABAKAK)

Keywords

• Solar PV installation
• Home battery storage
• EV charging stations
• Dynamic load balancing
• Grid service aggregation

Headquarters

HQ city

Järfälla

HQ country

Sweden

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations

Revenue model

1. Solar panel installation: One-time installation of solar PV systems for residential and commercial customers, including design, procurement, and commissioning. Revenue recognized at project completion.
2. Battery storage systems: Sale and installation of home battery systems (Sigenergy SigenStor, Dyness Stack 100, Pylontech H3, SAJ HS3) with hybrid inverters. Includes packages with CheckWatt AI for grid services. One-time hardware + installation revenue.
3. EV charging equipment and installation: Sale and installation of EV charging stations (Easee, Zaptec, Charge Amps, Tesla Wall Connector, DEFA Power, Sigenergy AC). Products sold with or without installation. Dynamic load balancing add-on available.
4. Service and maintenance contracts: Monthly subscription-style service contracts for EV charger maintenance: Base (49 kr/month), Service (99 kr/month), and Trygghet/Care (199 kr/month). Includes remote support, on-site troubleshooting, product warranty, loan charger, and priority support.
5. Technical support and troubleshooting: Billable remote and on-site technical support services: prioritized remote troubleshooting at 995 kr, prioritized on-site troubleshooting at 4,500 kr. Provided free for customers with service agreements.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Järfälla Energi AB designs, sells, and installs complete solar PV systems, home battery storage systems, and EV charging stations for residential and small commercial customers in the Stockholm region. All installation work is performed by the company's own in-house electricians who act as project managers from first contact to commissioning. The company also offers monthly maintenance/service contracts for EV chargers and integrates AI-driven energy optimization (Sigenergy SigenStor, CheckWatt) to enable grid service revenues.

Product overview

Järfälla Energi AB is a solar energy installation company serving the Stockholm region, offering a comprehensive portfolio of residential and commercial renewable energy products. The core offering centers on solar panel installations with integrated battery storage systems (hemmabatterier), complemented by EV charging solutions (laddboxar). The product portfolio consists of three main categories: (1) Complete solar-plus-battery systems including Sigenergy SigenStor (5-in-1 all-in-one system with built-in AI), Dyness Stack 100 PRO + Solis inverter, Pylontech Force H3 + Solis, and SAJ HS3; (2) Standalone EV chargers from Easee, Zaptec, Tesla, Charge Amps, and DEFA; and (3) Service/maintenance agreements (Underhållsavtal) in three tiers. The company serves both residential homeowners and commercial clients (BRF/företag) with projects ranging from single-family homes to large residential associations with hundreds of solar panels.

Differentiator

Problem solved

Functional benefit

Products and services

• Sigenergy SigenStor battery system 5-in-1 hybrid system combining solar inverter (6–30 kW), battery storage (6–54 kWh, configurable 9–50 kWh), DC EV charger (V2H/V2G-ready, up to 25 kW CCS2), energy management system, and AI optimization with 15-minute interval planning based on weather forecasts, spot prices, and household consumption. IP66 rated for indoor/outdoor use, 10-year warranty, with installation included. Priced from 46,500 kr after Swedish green tech deduction.
• Dyness Stack 100 PRO + Solis 20 kW hybrid inverter package Modular battery package combining Dyness Stack 100 PRO high-voltage battery (scalable 15.36–76.8 kWh) with Solis S6-EH3P20K-H hybrid inverter (4 MPPT, 98.7% efficiency, IP66). Includes CheckWatt AI for grid services participation (FCR-D, mFRR). Recommended for villas with 40–60 solar panels. Priced at 53,000 kr after green tech deduction.
• Pylontech Force H3 + Solis inverter solar package Battery and inverter combination using Pylontech Force H3 lithium batteries (10–35 kWh) with Solis hybrid inverters. Modular design for Swedish/Nordic conditions, particularly compatible with Ferroamp EnergyHub integration.
• SAJ HS3 15 kWh home battery SAJ HS3 home battery system with 15 kWh capacity for solar energy storage, sold with installation included.
• Easee EV charger (laddbox) Norwegian-made smart EV charger with WiFi connectivity, app control, and load balancing capability. Compatible with Tibber smart charging platform and Enegic/Tibber Pulse load balancers. From 5,990 kr with installation.
• Easee MAX EV charger with installation Premium-tier Easee EV charger with smart charging and load balancing features, sold with installation included. Priced from 6,990 kr.
• Zaptec Go EV charger Compact, safe, smart home EV charger from Norwegian manufacturer. Compatible with Enegic Monitor for dynamic load balancing and Tibber smart charging. Priced from 7,490 kr with installation.
• Zaptec Go 2 V2G-ready EV charger V2G-ready version of the Zaptec Go EV charger supporting vehicle-to-grid bidirectional energy flow. Priced from 7,490 kr.
• Tesla Wall Connector Gen 3 Tesla's official 11 kW home EV charger compatible with Tesla vehicles and other EVs with Type 2 connector. Fixed 7m cable with charge port button integration. Priced at 6,990 kr.
• Charge Amps Dawn EV charger Swedish-made smart EV charger with app connectivity and load balancing. Available in white at discounted pricing of 5,990 kr.
• Charge Amps Aura dual-outlet EV charger

Quantifiable outcome

• Reduces grid dependency through up to 80% self-consumption of solar generation with AI-optimized battery storage
• +4 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration17 records

AI capability3 records

Feature6 records

Partnerships

Four partnerships are on record, tiered core.

• CheckWattcoreTechnology or IntegrationCheckWatt provides AI aggregation services that connect Järfälla Energi's installed home batteries to virtual power plants, enabling participation in FCR-D and mFRR grid support services. The partnership is standard for Dyness + Solis battery packages. CheckWatt AI optimizes battery charge/discharge based on weather forecasts, spot prices, and grid demand, earning customers 8,000–20,000 kr/year.
• SigenergycoreTechnology or IntegrationSigenergy is the primary battery and inverter brand installed by Järfälla Energi. The SigenStor 5-in-1 system with built-in AI is a flagship product. Järfälla Energi has installed hundreds of Sigenergy SigenStor units with no warranty claims, making it the preferred brand for most residential customers.
• DynesscoreTechnology or IntegrationDyness Stack 100 PRO is sold as a bundled package with Solis hybrid inverters and CheckWatt AI, positioned as a cost-effective alternative to Sigenergy for larger battery systems (>30 kWh). Scalable from 15 kWh to 76.8 kWh per stack.
• SoliscoreTechnology or IntegrationSolis hybrid inverters (S6 series, 10-20 kW) are bundled with Dyness and Pylontech batteries as a competitive package. Solis S6-EH3P20K-H features 4 independent MPPT trackers, 98.7% efficiency, IP66 rating, integrated AFCI, and built-in WiFi/LAN.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Others

• Tibber: Norwegian/Swedish digital electricity retailer offering smart EV charging and grid rewards. Indirect peer — Järfälla Energi integrates Tibber for smart charging and refers it to customers; both touch the same consumer around EV charging economics but Tibber sells electricity rather than installs hardware.

Direct peers

• Solkompaniet: Swedish solar installer serving both residential and commercial customers across Sweden. Comparable offering (solar panels and batteries with installation) and overlapping customer base, though typically larger project focus.
• Otovo: Norwegian-headquartered subscription-based residential solar and battery installer operating across the Nordics including Sweden. Closely comparable business model (solar + battery + EV charging for homeowners) and adds the subscription/recurring revenue dimension that Järfälla Energi partially mimics with its service contracts.
• Elkedjan: Swedish electrical installation chain with multiple local affiliates doing solar, EV charging, and electrical contracting. Comparable service mix and small-to-mid commercial customer focus, though delivered through a franchise model rather than a single direct team.
• Svea Solar: Largest residential solar installer in Sweden, now owned by Equinor. Offers solar panels, batteries, and EV charging with installation across Sweden — directly comparable product set and target customer to Järfälla Energi, though at much larger scale and with subcontracted installation.
• Solel Energy (Solel.se): Swedish residential solar installer focused on private customers in the Stockholm and broader Swedish market. Comparable offering and target customer segment, competing for the same residential solar installation work.

Emerging players

• Charge Amps: Swedish EV charger manufacturer (Dawn, Aura, Halo) whose products Järfälla Energi sells and installs. Adjacent peer in the EV charging ecosystem — comparable end-customer and installation channel, though Charge Amps is a hardware OEM rather than installer.
• Ferroamp: Swedish inverter and EnergyHub system company that Järfälla Energi installs alongside Pylontech batteries. Comparable on the energy-management / solar-plus-storage technology stack, though Ferroamp is primarily an equipment maker rather than installer.

Broad incumbents

• Egen Sol (E.ON): E.ON's residential solar offering in Sweden. Competes for the same residential solar customer but is backed by a large utility, providing wider geographic reach and financing options Järfälla Energi cannot match.
• Vattenfall Solceller: Vattenfall's residential solar arm in Sweden. Competes directly for residential and small commercial solar customers with the backing of a major Swedish utility — broader portfolio but less specialized than Järfälla Energi.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/j%C3%A4rf%C3%A4lla-energi-ab
• Instagraminstagram.com/jarfalla_energi

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Järfälla Energi AB