With regard to the program Green for savings the speculations appeared that the producers of thermal insulating materials increased the prices in reaction to the introduction of the subsidy, so that, ultimately, investors pay the same as if the subsidy had ever been introduced.

Passive houses reduce the need for heating to compensate the heat loss through the building facade and ventilation. But at the same time it increases consumption of the auxiliary energy for circulation pumps and fans. The analytical result can be for many readers quite surprising.

In 2010 it was delivered to the domestic market, over 80 thousand small combustion plants for solid fuels. Of these, 24 000 stove and fireplace inserts, stoves 50 000, less than 5000 kitchen ranges and over 1000 spa stoves. Around 50% of these devices are imported. Hot-water heat exchanger is fitted with 15-20% of sold heaters.

The article presents the second part of the report, which is the result of research of all available statistical sources relating to the development of prices of solid fuels for household. This section focuses on trade in wood pellets and briquettes.

The present report is the result of processing of all available statistical sources relating to the development of prices of solid fuels for household. there are monitored price indicators of graded types of coal and coke, lignite, peat and wood briquettes, wood and vegetable pellets and firewood.

The article is the result of surveys conducted in the work of raw material and energy department statistics, the Ministry of Industry and Trade. Material published in August 2011 includes data on molded (formed) fuels (briquettes and pellets) made from biomass (wood and plant), peat, coal and paper.

Department of raw material and energy statistics of the Ministry of Industry and Trade dealt with detection rates of solid fuels in 2009, especially briquettes and pellets, under which in December 2010 issued material with the statistical evaluation of items: wood and plant pellets, wood, plant, paper, coal and peat briquettes.

The author in his paper examines in detail the individual steps that make up the course selection process for energy services provider. Special focus is on the evaluation of the bids submitted in the tender.

For some time I start to have an allergy to the word ecology and ecological architecture. These words can mean many things, depending on what you need. So I'll try to put my opinion into a more specific framework. What is green architecture? Why is modern architecture abnormal when waste is normal? What is the situation in the Czech Republic for the use of "POTENTIAL SAVINGS?" How is the Czech Republic architecture environmentally friendly?

The contribution is focused on the systems of cool production for air-condition units. The first part of the contribution deals with the now-a-days cooling requirements of buildings. Then, the frequently used cool production systems are described and compared each other. The absorption cooling systems and the vapor cooling systems are compared. The most frequently used applications of the cooling absorption cycles are presented, namely tri-generation systems and district cooling systems.

In relation with the present discussions on the use of solar energy it is useful to mention one important stage of Czech agriculture - the production of really high-quality roughage. Besides the development of methods of silage and haylage, thirty years ago the researchers looked at final drying of forage in large-scale haylofts using air solar collectors.

The paper deals with identifying suitable areas of use of small cogeneration units fossil fuels and renewable energy sources in municipal and industrial uses. Discusses the advantages and disadvantages of cogeneration units based on internal combustion engines, gas turbines and steam engines, including their position in the electricity grid

The service life of photovoltaic panels is currently estimated at least 30 years. However, in the ideal case, it can be doubled up. Panels are recognised as a source of valuable raw materials too. Even though solar panels do not fall under the scope of European directives on waste management, manufacturers and suppliers have created a voluntary program of PV Cycle.

Projects of the International Energy Agency show that use energy more efficiently has a greater potential to reduce CO₂ over the next 20 years than all other options combined. The main objectives of intelligent networks are improving the efficiency, reliability, safety and environmental sustainability.