The Fortum Solar+ service - Fortum Oyj bets on bundled clean power

Fortum Solar+ service starts with a technician standing on a frosty Finnish roof, feeling the grit of the panels under his gloves as he checks each mounting rail. The package wraps hardware, installation and an electricity contract into one bundle for households and small firms.

Solar package with contract

Fortum Solar+ is Fortum's bundled rooftop solar offering, sold as a system with panels, inverter, installation and a linked electricity contract for customers in Finland. The service targets detached houses and small commercial buildings that want to cut grid consumption and stabilize bills.

Fortum's product manager for consumer solar solutions, backed by the wider Fortum Consumer Solutions unit, has designed Solar+ so that customers can choose system size according to their roof and annual use, with typical packages starting around 16 to 24 panels. The package is marketed under Fortum's broader electricity and solar brand in the Finnish market.

Hardware and installation details

Fortum sources Solar+ hardware from established module and inverter manufacturers, installing systems through its partner installer network in Finland. Panels are mounted on pitched roofs using aluminum rails and roof-specific brackets, with cabling routed under tiles or along outer walls depending on the building.

Typical Solar+ packages in Fortum's consumer offering use string inverters sized to the planned peak output of the system, for example a 6 kW inverter paired with roughly 15 to 20 panels in the 350 to 420 W class. Fortum highlights that installation usually takes one to two days for an average single-family home, including electrical inspection and grid connection.

Electricity contract and smart monitoring

Alongside the hardware, Fortum Solar+ is tied to Fortum's electricity contracts aimed at solar owners, often structured around spot-based pricing and netting self-consumption and surplus exports. Customers can select fixed or market-based tariffs depending on their risk appetite and expected production.

Fortum offers digital monitoring via its online customer portal, where Solar+ users can follow daily production and consumption, sometimes complemented by a smartphone app from the hardware provider. The interface shows kilowatt-hours produced, self-consumed and exported, helping households adjust usage patterns to sunny hours.

Target customers and typical use

Fortum Solar+ is explicitly aimed at private homeowners with suitable roofs and electricity consumption above a few thousand kilowatt-hours per year, as well as small businesses such as workshops or village shops. The service is not positioned for large industrial roofs or utility-scale installations, where Fortum pursues separate project-based solutions.

In practice, a Finnish family with electric heating or a hybrid heat pump can use Solar+ to offset daytime consumption while still relying on Fortum's grid supply in winter. A small business customer may primarily offset lighting and machinery loads but still purchase significant power in darker months.

Pricing and financing structure

Fortum markets Solar+ with upfront purchase prices that depend on system size, roof type and location, with indicative total costs often running into several thousand euros for a typical household system. Customers receive a site-specific quote after an initial assessment, which may be partly performed online.

Financing options can be offered in cooperation with banks or finance partners, allowing customers to spread the investment over several years. Fortum also points to Finnish tax deductions for household energy-efficiency investments, which may reduce net costs for eligible customers.

Regulatory environment and grid rules

The Solar+ service operates within Finland's rules for small-scale generators, where household systems below certain thresholds can connect under simplified processes and receive compensation for exported surplus electricity. Fortum's installers follow local grid company requirements on safety, metering and connection points.

Customers generally need a bidirectional meter to properly record both consumption and export. Fortum helps coordinate meter upgrades with local grid operators when the Solar+ installation triggers such changes. The resulting data feed into Fortum's billing system under the selected contract.

Competition and Fortum's angle

Fortum Solar+ competes with other Finnish electricity companies and independent installers offering similar rooftop packages, often combining hardware, installation and power contracts. Fortum's differentiator lies in its broader energy portfolio, brand visibility and ability to integrate solar customers into its electricity and district heating ecosystem.

Fortum CEO Markus Rauramo has repeatedly emphasized in company presentations that consumer-level services like solar and energy efficiency advice complement Fortum's larger generation assets. Solar+ contributes to this narrative by tying households closer to Fortum across hardware, contracts and digital services.

Role in Fortum's strategy and stock context

From an investor perspective, Solar+ itself is a relatively small revenue pillar compared with Fortum's core power generation and recycling businesses. However, it illustrates how Fortum tries to position itself along the energy value chain, capturing retail relationships while the energy system shifts towards more distributed production.

On Xetra, Fortum Oyj stock trades in euro and reflects the market's view on how such services complement Fortum's larger Nordic and Baltic generation fleet and its broader strategy focus.