The energy consumption of industrial buildings in the Czech Republic is declining and can be declared transparently
In practice, it has been shown that the energy consumption for the operation of a modern industrial building completed this year with an area of about 30,000 m2 is only half that of a comparable building built 20 years ago. If we convert this into direct energy calculations, we are talking about a saving of 280,000 EUR per year and 54 tons of CO2 that would otherwise have been blown into the air. In the Czech Republic, information about the energy efficiency of a building is verified by a PENB certificate.
The building energy performance certificate (PENB) is used to obtain information about the energy performance of a property’s operation. The building energy performance certificate is part of the energy assessment. The Energy Performance Assessment (EP) is an analysis of the property in terms of energy management, including a proposal for structural measures, their cost and impact. The EPB is based on the European Energy Performance of Buildings Directive 2018/844/EU.The energy performance of a building is determined based on the calculated or actual energy consumption and reflects the typical energy consumption for space heating, space cooling, hot water, ventilation, built-in lighting and other technical building systems.
The energy performance of a building is expressed as a numerical indicator of primary energy consumption in kWh/(m2.r) for the purposes of energy performance certification and compliance with minimum energy performance requirements. Primary energy from non-renewable energy sources means energy that has not undergone any conversion process. Its quantity is calculated using the factors for non-renewable primary energy. Non-renewable primary energy expresses the overall efficiency and effectiveness of energy use in the whole process.
The PENB Building Energy Performance Certificate contains a number of interesting data that provide information about the most important parameters in graphical form. An example of an interesting category A industrial building is the Amazon Fulfillment Center in Kojetín. The example of the PENB Building Energy Certificate (see figure) shows that by using the latest technologies to reduce energy consumption (photovoltaics on the roof, heat pumps, etc.) itis possible to build a project with minimal electricity consumption and completely without gas, even in the Czech Republic.