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.

Article gives an overview of support for electricity generation from biogas in the European countries and a comparison of purchase prices in selected countries. Purchase prices in the Czech Republic are comparable with other European countries. After the abolition of capital grants, a significant reduction of the interest of investors can be expected.

Growing Rumex OK 2 - feed sorrel - is by VÚRV Ruzyne engaged for nearly 20 years. Initially the Rumex was observed in experiments later in the field conditions. The oldest stand of the Rumex is twelve years old (2011), grown on an area of 20 hectares.

Nowadays there is a growing interest in quality and high energy saving housing. The following article presents the almost unusual renovation of a terraced building in Denmark. It was expected that after the renovation the building with become CO₂ neutral. The last house of a terrace in the twon of Albertslund, Denmakr was chosen for the renovation. It had been built in the 1960's and it is a two story terraced house with a 50m² footprint.