Oomi Solar

What Oomi Solar does

Oomi Solar Oy is a Finland-based renewable energy engineering, procurement, and construction (EPC) contractor and project developer specializing in solar photovoltaic power generation and battery energy storage. Incorporated on January 1, 2024 as a spin-off from Oomi Energia, the company designs, builds, and operates utility-scale ground-mounted solar farms, commercial and industrial rooftop solar installations (Aurinkopuistot and Kiinteistövoimalat), and integrated battery energy storage systems (BESS / Energiavarastot). Core technical capabilities include bifacial solar panel deployment optimized for northern-latitude conditions, hybrid solar-plus-storage power plants for grid balancing and Fingrid reserve market participation, and full-lifecycle project development from site selection and permitting through construction, commissioning, and maintenance.

The company generates revenue through three primary commercial models: direct purchase (EPC turnkey), Power Purchase Agreements (PPAs) with 15–20 year terms under which Oomi retains ownership, and rental/lease models with annual cash-flow-positive payments. It also earns project development fees and delivers standalone BESS contracts. Go-to-market is sales-led direct enterprise field sales, with a team of approximately 20 professionals organized into business units for property solutions, utility-scale solar parks, and project development. Headquartered in Vantaa with an office in Oulu, the company serves corporate enterprises (manufacturing, retail cooperatives such as S-ryhmä and Osuuskauppa Keskimaa), energy companies and cooperatives (Oulun Seudun Sähkö, Suomen Aurinkovoima, Solar Polar), and municipalities (City of Oulu).

FY2024 revenue was EUR 20.6 million, more than double the prior-year period, with an operating profit margin of 4.6% and an equity ratio of 91.4%. Backed by large public energy companies within the Oomi Group, Oomi Solar has completed over 600 projects and installed more than 500,000 solar panels since the business line's inception, with signed pipeline including the 250 MW Suomen Aurinkovoima portfolio (>EUR 100 million), the Tornio hybrid power plant (24 MWp solar + 70 MWh BESS, 2028 delivery), the Muhos hybrid project, and the Haukipudas BESS. The company divested its EV charging services to Nero-Lataus in July 2026 to concentrate on solar and storage at industrial scale.

Name

Oomi Solar

Legal name

Oomi Solar Oy

Website

https://oomisolar.fi

Company type

Private

Founded year

2024

Operating status

Operating

Headcount range

11–50 employees

Short description

Oomi Solar Oy is a Finland-based renewable energy EPC contractor and project developer that designs, builds, and operates utility-scale solar farms, commercial rooftop solar installations, and battery energy storage systems for corporate enterprises, energy cooperatives, and municipalities in Finland.

Ownership category

akta.pro rank

Product category

Solar Energy EPC and Storage Services

NAICS

Solar Electric Power Generation (221114), Power and Communication Line and Related Structures Construction (237130)

akta.pro primary industry

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

akta.pro secondary industries

Solar PV Power Plant EPC (Utility-Scale) (EUAEAAAG), Utility-Scale PV EPC (Engineering, Procurement & Construction) (EUACAGAB), Operations, Maintenance & Asset Management (O&M, Vegetation, Spares, SCADA) (EUACAGAH), Electrical Balance-of-Plant EPC (MV Collection, Cabling, Earthing, Lighting) (EUAEADAB), Civil & Site Works EPC (Earthworks, Roads, Drainage, Foundations) (EUAEADAA)

Keywords

• Utility-scale solar farms
• Commercial rooftop solar
• Battery energy storage
• Solar EPC services
• Power purchase agreements

Headquarters

HQ city

Vantaa

HQ country

Finland

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. EPC / Turnkey Solar Plant Delivery: Oomi Solar designs and constructs solar power plants as EPC (Engineering, Procurement, Construction) or alliance contracts. The company delivers both property-level and utility-scale solar installations. Revenue is recognized upon project completion and delivery.
2. Power Purchase Agreement (PPA): Under PPA contracts, Oomi Solar retains ownership of the solar plant on its balance sheet. The customer pays for electricity generated at a negotiated rate, typically below grid price, over a 15–20 year contract period. At contract end, the plant transfers to the customer's balance sheet.
3. Solar Plant Rental/Lease Model: Customers can lease solar power plants with fixed rental payments. No customer capital is required. Cash flow is positive from year one. Oomi Solar maintains ownership and operations until contract end, when ownership transfers.
4. Project Development Fees: Oomi Solar earns development fees for identifying sites, securing land, obtaining permits, and preparing feasibility studies for solar and energy storage projects. Development services span from preliminary assessment through to investment decision.
5. Energy Storage System Delivery: Standalone BESS (Battery Energy Storage System) delivery contracts for grid balancing, peak load management, and reserve market participation.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

Oomi Solar designs, builds, and operates utility-scale ground-mounted solar farms and commercial/industrial rooftop solar plants in Finland. The company delivers projects via EPC (Engineering, Procurement, Construction) and alliance contracts, Power Purchase Agreements (PPAs), and rental/lease models, while also supplying standalone Battery Energy Storage Systems (BESS) for grid balancing, reserve market participation, and peak load management. End-to-end services span project development (site assessment, permitting, technical design) through construction to lifecycle maintenance and remote monitoring.

Product overview

Oomi Solar provides a comprehensive suite of solar energy and storage solutions for businesses and organizations transitioning to renewable energy. The core offerings consist of utility-scale Solar Farms (Aurinkopuistot) for ground-mounted installations, Property Solar Plants (Kiinteistövoimalat) for commercial/industrial rooftops and grounds, Battery Energy Storage Systems (Energiavarastot/BESS) for grid support and energy optimization, and Project Development (Hankekehitys) services covering the full lifecycle from site assessment to commissioning. Maintenance and monitoring services support customers throughout the operational life of installed systems. Procurement options include direct purchase, PPA (Power Purchase Agreement), and leasing models. The company also previously offered EV charging solutions (transferred to Nero-Lataus in 2026) and develops hybrid power plants combining solar and storage.

Differentiator

Problem solved

Functional benefit

Products and services

• Solar Farms / Utility-Scale Solar Parks (Aurinkopuistot) Ground-mounted solar installations at utility scale for clean energy production. Oomi Solar handles project development, EPC/alliance delivery, and operational management. Suitable for landowners, energy companies, and investors, with PPA and turnkey procurement models.
• Property Solar Plants (Kiinteistövoimalat)

Quantifiable outcome

• Payback period of 5–10 years for solar power plants
• +7 more outcomes

Named customers9 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature3 records

Partnerships

Seven partnerships are on record, tiered minor / transition, flagship / core and core.

• Nero-Lataus Oyminor / transitionGTM or Marketing Partner · 1 July 2025Oomi Solar transferred its EV charging services business to Nero-Lataus via a business transaction effective 1 July 2026. Oomi Solar is focusing on its core solar and energy storage business. No transaction value disclosed.
• Suomen Aurinkovoima Oyflagship / coreStrategic or Co-development Partner · 27 May 2025Oomi Solar and Suomen Aurinkovoima signed a project agreement covering ~250 MW of solar power across 10 projects, representing over EUR 100 million in investment. Oomi Solar acts as project developer; solar parks built under an alliance agreement between the companies. Projects span broadly across Finland.
• Oulun Seudun Sähköflagship / coreStrategic or Co-development PartnerAlliance partnership covering ~100 MW of solar power development in Northern Finland. Projects include Ruotsinoja solar farm (9.5 MWp), Vihreäsaari solar farm (managed), and Muhos hybrid project. Oulun Seudun Sähkö is a consumer cooperative owned by its members, investing in local sustainable energy production.
• OK Sähkövarasto OycoreStrategic or Co-development PartnerJoint venture of Oulun Seudun Sähkö and Haukiputaan Sähköosuuskunta. Oomi Solar supplies 5 MW / 10 MWh BESS to Haukipudas Kello area. Strategic positioning near substation for grid balancing and capacity management.
• Solar Polar Oyflagship / coreStrategic or Co-development PartnerSolar Polar (owned by Tornionlaakson Sähkö, Ounastuotanto, Neve, Itä-Lapin Energia, Muonion Sähköosuuskunta) and Oomi Solar signed a full delivery contract for a 24 MWp solar farm + 36 MW / 70 MWh BESS in Tornio. Oomi Solar handles design and construction (EPC); Solar Polar owns and operates the plant. Completion expected 2028.
• Adven OycoreStrategic or Co-development PartnerAdven Oy served as the client and end user for the electric boiler and solar power plant for the Mirka hybrid project. Adven's automation system integrates with Oomi Solar's solar farm. Oomi Solar acted as EPC contractor for the solar portion.
• Tuulipolar OycoreStrategic or Co-development PartnerParent company of Solar Polar Oy. Northern Finnish energy companies collaborating on large-scale renewable energy projects.

Scale indicators18 records

Recent moves7 records

Expansion highlights7 records

Regional players

• Helen: Helsinki-based Finnish energy company investing in solar generation and storage to decarbonize district heating and power. Comparable as a Finnish energy counterpart for hybrid solar/heat projects, though primarily a utility rather than an EPC.

Broad incumbents

• OX2: Listed Nordic renewable-energy developer with utility-scale solar and wind EPC and project-development operations across Nordics and Europe. Comparable on utility-scale solar EPC scope though much larger and broader in geography and asset ownership.
• Afry: Nordic engineering and consulting group with significant renewable-energy infrastructure capabilities including solar and storage design and project services in Finland. Comparable as a Finnish/Nordic infrastructure and renewable-engineering services provider.
• European Energy: Danish developer and EPC of utility-scale solar and onshore wind across Europe. Comparable on utility-scale solar EPC and PPA-asset ownership, although materially larger and internationally diversified.
• Fortum: Large Finnish state-controlled energy group with utility-scale solar and BESS development in Finland and the Nordics. Comparable as a Finnish energy player investing in solar and storage and a potential competitor and counterpart for large Nordic projects.
• Eolus Vind: Swedish renewable developer active in Nordic and Baltic utility-scale wind and increasingly solar projects. Comparable as a Nordic renewable project developer and EPC partner, though wind-led rather than solar-led.
• Eltel: Nordic infrastructure construction and maintenance company with power-line and renewable-buildout capabilities. Comparable as a Nordic infrastructure contractor active in power and renewables, complementing solar EPC execution capability.

Emerging players

• Bright Sunday: Sweden-based solar subscription/PPA provider for commercial real estate. Comparable on the subscription/PPA business model and northern-European customer base, though smaller scale and more leasing-focused.

Direct peers

• Solarigo: Nordic solar PV developer and EPC offering turnkey solar installations to commercial and industrial customers across Sweden and Finland. Directly comparable in business model — turnkey EPC plus PPA/leasing-style offerings — and similar target customer segments (enterprises, municipalities).
• Solkompaniet: Swedish solar EPC focused on commercial rooftops and ground-mounted projects with PPA and leasing options. Closely comparable as a Nordic solar EPC serving corporates with similar delivery and financing models.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/oomisolar
• Facebookfacebook.com/profile.php

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 Oomi Solar