We help people modify homes, offices, corporate facilities, and sports venues to become energy independent.

Specialist in energy performance of buildings and operator of the penb.cz portal. We offer the development of PENB (energy labels) for all types of buildings. Together with our colleagues we provide a complete service from the provision of documents to the final document. Quickly, professionally and throughout the Czech Republic.

Your partner for smart energy savings - tailored optimisation. We help households, businesses and municipalities reduce energy costs smartly and in the long term.

The company focuses on the production and distribution of renewable energy sources (e.g. solar panels, biogas plants, wind power plants), energy efficiency consulting and the implementation of smart energy systems.

We provide heat cost reduction through the use of heat pumps. We will analyse and suggest an efficient and economical heating method. We provide management and service of heat pump technology. We supply Viessmann pumps.

We specialize in telecommunications and energy service optimization. We provide price comparisons for ISDN and VoIP landlines, mobile phone tariffs, ADSL, VDSL, Wi-Fi and cable internet or data TV. We also run an online calculator.

We are active in the field of energy and environment by consulting, engineering and project activities, including the management of the implementation of energy projects. We process energy audits, energy assessments and energy performance certificates, building certification, feasibility studies and more.

Preparation of energy audits, energy assessments, technical preparation for obtaining subsidies from OPTAK, OPŽP, IROP, NZÚ. Preparation of technical and economic optimizations, expert opinions and studies focused on financial savings in the energy sector and environment.

Offer energy audits and techno-economic consultancy, including small business energy management. We provide installation of electrical equipment as well as metering and control equipment including repairs.

Ing. Petr Michna is a certified energy specialist licensed by the MIT, operating in Liberec and the entire Liberec Region. He prepares building energy performance certificates (PENB), renovation passports and statutory inspections of heating and air conditioning above 70 kW according to Decrees 38/2022 and 284/2022 Coll.

I provide consultancy in the field of heating.