Total installed output – 7.2 MW
Completed projects – 800+
Reduced CO2 emissions – 7400 t/year
Represented – 10 countries

About us

Solarstone came about in early 2015 while a group of friends was facing tough technical challenges when simultaneously working on different housing projects. The challenge combined 2 different tasks – building lasting roofing systems and becoming independent from the grid with strong desire to harness energy from alternative sources.

Concrete and clay tile roofing systems are known for the best durability equally in harsh Nordic winter conditions and scorching Mediterranean region. One problem solved.

Existing wind and solar solutions available on the market were either too expensive or unfit for various reasons, mainly poor aesthetic appeal. Research and development in photovoltaic (PV) systems have recently sparked massive revolution by constantly pushing for higher efficiency and delivering more affordable products. PV panels can be viable option in temperate latitudes when designed and erected correctly. Second problem solved.

Whats the value proposition? Well. Solarstone seeks to combine the best of the two worlds – what if we can produce building-integrated photovoltaics (BIPV) at reasonable cost and guarantee streamlined look? What if we can interlock solar modules perfectly with the desired type of roof tile without looking like an alien mothership has landed on my roof?

Solarstone was born to stay.


2016 – 1st prototype & 1st paying customer.

2017 – Launching cooperation with BMI Group and setting up manufacturing facility in Viljandi.

2018 – First export sales and completion of first roof on a public building  (Suure-Jaani Health Center).

2019 – Combined total output of 1,7 MW on 180 projects. Represented in 7 countries. Happy to greet strategic investor Sunly OÜ onboard.

2020 – Tripling the sales to 2MEUR. A breakthrough year for Click-on.

2021 – Solarstone 500 solar roofs can be found in 8 European countries. Total installed output 4.5 MW.

Company principles and values

Innovation. Deliverable & cutting edge solar solutions.

Customer Commitment. Transparent & accountable.

Teamwork. Best people. Honesty & integrity.

Sustainability. Lasting products with commitment to fix energy and environmental challenges.

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