Energy is here

Take control of your energy future.

Our comprehensive, customised solutions can help you benefit from the transition to renewables.

What We Do

Demand Side Response

We offer customised DSR and capacity market programs, allowing you to profit risk-free from possible energy reduction.

Learn More

Energy Supply

We offer electricity at attractive prices. On request, we supply energy with a guarantee of origin from renewable sources.

Learn More

Energy Management

We provide comprehensive diagnostics to help optimise your energy use.

Learn More

On-site Solar Power

We design, build and manage customised photovoltaic power and storage systems.

Learn More

Our Customers


Customised clean energy solutions that meet your business needs and sustainability goals.

Learn More


Whether you grow crops or raise livestock, our PV systems specially designed for agriculture can help you do it cheaper. And through the sale of surplus energy, you can even earn extra income.

Learn More

About Us

We provide comprehensive renewable energy solutions to energy consumers in Poland. As part of Photon Energy Group, we are committed to our shared vision of a world where energy is clean, safe and accessible to everyone.

Key Figures

Lerta in Numbers


largest DR aggregator in Poland

50 MW

largest asset in the Photon Energy Virtual Power Plant

30 kW

smallest asset in the Photon Energy Virtual Power Plant


Photon Energy Group Case Studies

Contact Us

Používáním těchto stránek souhlasíte s užitím souborů cookies.


Join our Newsletter

The copy needed. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean euismod.

Amdgkas dkagd kaghd…

This site is protected by reCAPTCHA and the Google
Privacy Policy andTerms of Service apply.