Otso

About us

Energy independence through innovation

We are an Estonia-based energy solutions company helping homes and businesses move toward clean and affordable energy. Our mission is to make solar power accessible to everyone.

Our story

We started in 2019 with a vision to reshape Estonia’s energy landscape and reduce dependence on fossil fuels.

Today, we have installed over 500 solar systems at different sites across Estonia. Our team consists of engineers, project managers, and installers who share a common passion for green energy.

We believe the future of energy is distributed, clean, and intelligent. Every home and business should have the opportunity to generate its own energy and stay independent from rising grid electricity prices.

Our approach is always tailored — no two projects are the same. We carefully analyze each site’s specifics, energy needs, and opportunities to provide the best possible solution.

Our values

The principles that guide our daily work and decisions

Quality

We use only top-grade components and materials. Every project goes through thorough quality checks, and our installations meet the highest standards.

Customer-first

Your satisfaction is our priority. We provide clear communication, honest pricing, and strong support throughout the project — and afterwards.

Reliability

We deliver on our promises and stand behind our work. We offer robust warranties and are always ready to help if questions or issues arise.

Transparency

No hidden fees or surprises. We explain processes and costs before the project starts and keep you informed at every step.

Innovation

We follow the latest technologies and solutions. We invest in our team’s training to deliver the most modern systems available.

Sustainability

Our goal is to help build a more sustainable future. Every installed system reduces COâ‚‚ footprint and helps protect our planet.

500+
Installed systems

Homes, apartment buildings, and businesses across Estonia

8MW
Total capacity

Combined capacity of installed solar energy systems

98%
Customer satisfaction

Recommend us to friends and family

7y
Experience

In designing and installing energy systems

Why choose Otso?

We’re more than installers — we’re your partner on the path to energy independence

01

End-to-end solution

From design to installation and maintenance — everything in one place. No need to coordinate multiple partners.

02

Fast installation

Most projects are installed within 1–3 days. We minimize disruption to your daily life and work.

03

Transparent pricing

No hidden costs or surprises. All costs are clearly outlined before the project begins.

04

Premium components

We work only with trusted manufacturers. We use Tier 1 solar panels and inverters.

05

Strong warranty

Up to 25 years of component warranty and 5 years of workmanship warranty. We stand behind our quality.

06

Reliable support

We provide service and support after installation. Our team is always ready to help and advise.

Start your journey to energy independence

Request a free consultation and a quote. We’ll analyze your site and offer the best possible solution.