Otso

Our products

End-to-end energy solutions

We provide professional solar energy solutions — from system design to installation and maintenance. Everything you need for energy independence.

Energy storage

Battery systems that store your solar energy and let you use it when you need it most. Greater independence and peace of mind.

Daytime energy for the evening

Store energy produced during the day and use it in the evening and overnight

Backup power

In case of an outage, the battery keeps your home running and preserves comfort

Smart energy management

Automatic optimization with the option to participate in the frequency market

Technical overview

Capacity 5–100+ kWh
Technology LiFePO4 lithium
Lifetime 10–15 years
Backup 4–24h
Energy storage

Solar systems

We design and install solar systems for homes and businesses. We optimize the layout for your roof and ensure maximum performance.

Tailored system design

We design your system based on the site’s specifics and your energy needs

Quality components

We use trusted brands only — panels, inverters, and installation materials

Professional installation

An experienced team delivers fast, high-quality work backed by long-term warranty

Technical overview

Capacity 5–500+ kW
Panels Premium mono and polycrystalline
Inverters Hybrid or grid-tied inverter
Warranty 15–30 years

EV charging

Charging solutions integrated with your solar system. Charge your car using solar energy and cut fuel costs significantly.

Smart chargers

Wi-Fi enabled chargers for home and business, compatible with all EVs

Solar integration

The charger prioritizes solar energy first, reducing grid costs

Load management

Dynamic power adjustment based on your home’s consumption

Technical overview

Power 3.7–22 kW
Connection Single-phase or three-phase
Connector Type 2 (universal)
Control Wi-Fi, app, RFID
EV charging

Heating & cooling

Heat pumps and air conditioning optimized to work with your solar system. Comfortable temperature all year round with minimal costs.

Efficient heat pumps

Air-to-air and air-to-water heat pumps up to 5× more efficient than electric heating

Heating and cooling in one

One system keeps you comfortable in both winter and summer

Works great with solar

Solar-powered heat pump = close to free heating and cooling

Technical overview

Power 2.5–16 kW
COP (winter) 3.5–5.0
Type Air-to-air, air-to-water
Control Wi-Fi, app, thermostat
Heating & cooling

Ready to get started?

Request a free quote and get a clear estimate within 24 hours.