Biomass energy utilization is usually considered as direct combustion, newly for the biogas production in the biogas plant (BPS). In addition to commonly known tree species, the field crops described in this paper can be used as well.

When deciding on energy investments, consultants and designers often rely on data listed in the technical data sheets provided by manufacturers. This can lead to a very unpleasant surprise for operators - fuel consumption is often significantly higher than assumed by the assessment. Especially in terms of smaller heat sources, this approach leads to errors and consequent significant economic losses.

Wood and the materials on its basis fulfil the requirements of an ever-evolving and accelerating society. In addition to naturally grown wood, wood-based materials are frequently used as a basic material for production of furniture and for building constructions as well. Looking at changes in waste management, a significant shift from the waste to the circular economy can be observed. The valuable raw materials are kept in the production cycle instead of landfilling or burning. Wood and wooden products can be efficiently separated in waste management, reused and recycled. The so-called wood waste – old furniture, wooden pallets, window and door frames, demolition wood, used lumber, bark and other wood residues can be reused in particleboard production. Particle board manufacturers in the Czech Republic have adopted progressive waste management and currently use 60% of recycled wood into particle boards. A completed life cycle analysis (LCA) of OSB demonstrates that replacing of 50% of natural fibres with recycled wood has significant environmental benefits. The objective is to push furthermore on effective legislation to promote waste material utilization and thus lead to a more sophisticated waste wood collecting.

The authors describe the economic and technical connections related to the use of thermal solar water heating systems on the Czech market. This includes investment costs, grant titles, operating options, and an estimated lifetime that is roughly twice as high as the economic return.

One of the most well-known and most important greenhouse gases is carbon dioxide (CO₂), which arises from natural processes, but the burning of carbonaceous fuels, especially fossil fuels, contributes significantly in the last century. This text focuses on CO₂ emissions associated with energy transformations for the supply of energy to buildings.

Attempts to using wind power lead in the past to many technical discoveries and solutions. In this article we are going to look at the less common, functional and unfunctional ways and at the funny ones as well.

Energy management is a generally used term under which many sub-activities are hidden. These activities should lead to an efficient energy management system and to reduce the production of greenhouse gas emissions. The energy management system is a continuous process that, when properly adjusted, leads to savings in the funds spent on consumed energy. The energy management system can be included in the Facility Management portfolio and preferably in the Property Management department.

The European Union is changing its RES support system. From the 1st January 2017, aid granted by the Member States should be in the form of tender procedures as required by the State Aid Guidelines for the Environment and Energy 2014-2020.

Eco-design is a set of parameters (especially energy efficiency) that must be observed by the supplier (the manufacturer or importer) of the energy-related product when it is placed on the EU market or into operation. The article provides an overview of requirements for new sources and boiler rooms in relation to implemented regulations.

Phase measurement complicates using of solar energy to small prosumers and companies. A solar power plant can save a large part of the electricity expenses, but the system needs to be carefully planned.

The paper presents a summary of achieved parameters of Wave – a cogeneration plant that received the E.ON Globe Energy Award in a category “Idea” in 2015. Operation experience and modifications of WAVE from the ceremonial baptism in 2016 to the end of November 2017 are described.

The first article of the series on energetic reconstruction HVAC systems in residential buildings is focused on the preparation of project with minimum necessary information that should be prior to any commencement reconstruction. In current practice this part is significantly neglected.

In the first part of the series on the support of photovoltaic power plants, we got acquainted with the subsidy program for business entities. In this continuation we will look at the economic return of such projects.

In the end of 2017 the Ministry of Industry and Trade published new rules for state support for commertial photovoltaic systems which are supposed to cover company's energy consumption.

The author provides a basic overview of technical information on the issue of small solar systems suitable for family houses.

The authors compare the measured data on the production and use of electricity produced by the solar photovoltaic power plant with the total electricity consumption in the production area of the company. The second part of the article is based on considerations about the use of overproduction of electricity for heating and hot water preparation and its economy.

The authors compare the measured data on the production and use of electricity produced by the solar photovoltaic power plant with the total electricity consumption in the production area of the company. The second part of the article is based on considerations about the use of overproduction of electricity for heating and hot water preparation and its economy.

Electrochemical capacitors (supercapacitors, ultracapacitors) are electrotechnic components which are able to accumulate, hold and bring back a lot of electricity (compared to conventional capacitors). For accumulation of electricity they use two principles: electric bilayer and reversible chemical reactions.

The paper deals with the experimental determination of heat losses of reservoirs (hot water storage tanks, heaters, heat reservoirs). It shows how the thermal loss of the tank itself, determined by the correct procedure in accordance with the standard, can be different from the loss of the reservoir connected to the thermal system.

The article deals with the analysis of a possible solution of a non-energy residential building. The analysis shows what energy sources help to achieve a zero balance of non-renewable primary energy and what is not. In the contribution, the investment solution and the real operating costs of the energy-zero residential building compared to the current solution are shown for the selected solution and a simple payback period is set.