Solar panels for your home – Louna Solar Optimi

Finnish solar panels with intelligent inverter

The smallest Louna Solar Optimi package includes 14 solar panels. It has a total power output of 5.6kWp and an annual yield of about 4,900kWh.

You can apply for a household tax deduction for the installation work. Installation work accounts for approximately a third of the total price of package.

Price from €10,100
or in instalments from €172/month

Läpileikkaus omakotitalosta, jonka katolla on aurinkopaneelit. Piirroskuva.
Avainlippu ja teksti: "Tehty Suomessa".

Louna Solar Optimi includes all this

We make a survey and design the best package for your roof.

  • Finnish-made SALO® solar-panels manufactured by Salo Tech Oy
  • The right-sized high-quality SolarEdge inverter
  • Finnish SALO® Mounting Systems mounting racks made of recycled aluminium
  • Stainless-steel Finnish-made SALO® Mounting Systems roof brackets
  • Installation of solar-panels by local professionals
  • Onboarding and guidance for use of the solar-panel system

Contents of the Louna Solar Optimi package


Basic information about solar-panels

Panel manufacturer Salo Tech Oy
Panel type Mono-crystal panel
Panel yield 400Wp
Panel quantity from 14
Total system yield from 5,600Wp
Surface area m² from 25.6m²
Weight of the entire panel package in pitched roof installation about 15kg/m2
Weight of the entire panel package in flat-roof installation about 15 kg/m2, or depending on the property, if loose weights are used.

Every panel goes through quality inspections and power output testing at the factory. Quality assurance guarantees that our panels perform as advertised.

The rated power of the solar panel is expressed in Wp (watt-peak). The rated power of the solar panel is indicated in Wp (watt-peak). The rated power of the panel has been measured in standard operating conditions. The actual power varies depending on the radiation power of the sun, the angle of installation of the panel and the compass direction, possible shadow areas and outdoor temperature.


Other parts

Inverter SolarEdge SE 4K, 5K tai 7K
Boosters SolarEdge P404
Brackets Salo Tech Oy's brackets according to roof type and material. Material is stainless or acid-resistant steel.
Mounting racks Salo Tech Oy's mounting racks. Material recycled aluminium.
Mounting racks and accessories Salo Solar's PDF brochure on mounting racks and accessories for pitched roofs



The price of solar-panel packages includes:

  • Driving distance of 100km from Salo.
  • Installation on pitched roof, brick-tile roof, bitumen or sheet-metal roof (as a uniform panel set).
  • Lifting work if the eaves height of the property does not exceed 3.5 metres.
  • Connecting the inverter to the Internet.
  • Services of the building supervisor at properties where an operating permit is required.
  • The solar panel package is connected with the property's free fuse outputs.
  • Safety switch
  • About 50 metres of DC cable and about 4 metres of AC cable
  • Continuous monitoring and maintenance service for the solar-panel system.


Installation schedule

  • Installation by order-book. We aim to install within 30 days of ordering, but during high season (i.e. from April to August), delivery times may be longer.
  • Louna Solar Optimi packages take 1 to 2 days to install.

Warranty periods

Solar panels 15 years warranty for manufacturing defects and material
Mounting racks 30 years warranty
SolarEdge inverter 12 years warranty
SolarEdge boosters 25 years warranty
Other products and installation 10 years warranty
Guarantee of electricity generation Salo Tech Oy grants a 25 years electricity generation guarantee for the solar-panels they manufacture. This means that even after 25 years, the panels will still have at least 80% of the promised rated yield.


Services with additional charges (including VAT 24%)

Use of a crane if the eaves height of the property exceeds 3.5 metres. €180/day
Driving charge if the installation site is further than 100 kilometres from Salo. €1.30/km
Additional charge if connecting the inverter to the Internet requires a separate visit. €200
Extending inverter warranty period to 20 years €500
Extending inverter warranty period to 25 years €700
Installation of additional fuses €300
Grounding cable and required additional work Determined case by case
Installation controls for devices other than hot-water boilers Determined case by case
Visit of the building supervisor in the final inspection €100


How do I monitor solar-panel yield?

The Louna Solar Optimi solar-panel system has a Solar Edge inverter which allows you to monitor your own power generation and get maximum yield from each panel. In this video, we present the generating control system that shows day-by-day and hourly yields and yield numbers for each panel. The video is in Finnish.

Are you interested? Contact us!

Contact us by phone

You can also contact our experts directly by calling this number:

02 2628 572

What do we mean by metering method?

General Electricity

When you opt for our general electricity contract, you always pay the same price (24/7). This metering method is most commonly used in smaller homes; e.g. in apartment blocks and terraced houses.

Night-time Electricity

When you opt for night-time electricity metering, the price for electricity varies according to time of day; day-time metering applies e.g. from 7 AM to 10 PM, and night-time metering applies from 10 PM to 7 AM. Please note that different distribution network suppliers apply different cut- off times for metering, and you should take this into consideration when estimating consumption. Night-time metering is very popular in terraced and detached houses where the primary heat source is direct electrical heating.

Seasonal Electricity

Your electricity consumption can also be metered seasonally either as winter-day energy and other period energy. This metering method is popular with detached houses and vacation homes, which have water- circulated, heat-storing floor-heating and dual-rate metering. During summer season and winter nights, electricity is most affordable.