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.
Homes, apartment buildings, and businesses across Estonia
Combined capacity of installed solar energy systems
Recommend us to friends and family
In designing and installing energy systems
Why choose Otso?
We’re more than installers — we’re your partner on the path to energy independence
End-to-end solution
From design to installation and maintenance — everything in one place. No need to coordinate multiple partners.
Fast installation
Most projects are installed within 1–3 days. We minimize disruption to your daily life and work.
Transparent pricing
No hidden costs or surprises. All costs are clearly outlined before the project begins.
Premium components
We work only with trusted manufacturers. We use Tier 1 solar panels and inverters.
Strong warranty
Up to 25 years of component warranty and 5 years of workmanship warranty. We stand behind our quality.
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.