In this paper we proposed a new best energy mixture model and electricity generation simulation approach. This approach is explained based on Latvia case example where we use existing gas power station with combination of introduced hybrid bio-wind energy system. The goal is to replace imported fossil fuels for electricity generation with locally produced renewable sources of energy, to secure and increase independence of the country and to reduce CO2 emissions. The introduced best energy mix is based on two renewable sources: biomass and wind power stations. To make use of both advantages we combine these two types of power stations into one hybrid power system that gives a stable power output to supply country's energy needs.