Due to the ending resources of fossil fuels, as well as instability of the political situation on the world, especially in countries that are their main supplier, governments of poor countries in resources are forced to seek alternative sources of energy.Currently the most commonly used raw material to produce an electrical and thermal power in Poland are coal and lignite, However, in a result of an increase of their prices and an exacerbated by the EU of regulations about an emission of the greenhouse gas, emerged trends, that aim to transform the energy sector through the implementation of technologies based on alternative energy sources. The main focus is to put on renewable energy sources.The methodology, which is contained in this paper, presents a way to designation the demand of the biogas plant with CHP system on substrate of agricultural origin, the aim to obtain required electrical and thermal power. Moreover, the paper presents a simplified diagram of anaerobic fermentation, which is the basis of biogas production, as well as an illustrative diagram of a biogas plant with CHP system. In this paper also was mentioned the possibility of application biogas for transportation purposes.

The combined production of electrical and heat energy is one of the preferred, by national policy, activities associated with energy production from renewable sources. The simultaneous generation of heat and electrical or mechanical energy during the same technological process is called cogeneration or combined heat and power, CHP. The presented methodological approach includes an analysis of the data recorded in the research stations and agricultural production stations owned and managed by the University of Warmia and Mazury (UWM) in Olsztyn, performed in order to determine the energy potential of biomass and other renewable energy sources (RES). Depending on the substrates available for UWM in Olsztyn, it is proposed to take a varied approach towards the use of RES by means of biotechnological and thermal biomass conversion. The first method is based on the production of biogas from biomass with the subsequent use of the generated biogas in the process of cogeneration. In the second method, heat energy generated by gasification in a syngas generator will be used for transformation with a Stirling's engine into mechanical energy and finally into electrical (30%) and heat (60%) energy. The concept of a "Green University" is the result of the performed analyses.

Environmental Biotechnology deals with preservation and restoration of fauna, flora, and their environment. The utilisation of environmental biotechnology has significantly affected the world and will be one of the most valuable tools for improving the quality of life for future generations b y providing cost effective mechanisms for preserving and restoring natural resources. Biotechnology will also revolutionise many industrial processes by providing the ability to produce energy and chemicals through green processes that will minimise the impact of industrial activities on the environment and reduce the world's dependence on non-renewable energy resources. It will also enable the use of biological systems for the remediation of contaminated water and soils that result from many anthropogenic activities. The journal is devoted to biotechnological processes that preserve, protect and restore nature, mainly: • cytogenetic and molecular diagnostics of living andancient organisms,