The activities in field of renewable energy in Iran are focused on scientific and research aspects, and research part is aimed at reduction of capital required for exploitation of related resources. The second step is to work research results into scientific dimension of this field for practical means, i.e. establishing electricity power plants. Due to recent advancements in wind energy, many investors in the country have become interested in investing in this type of energy. At the moment, projects assuming 130Â MW of wind power plants are underway, of which, 25Â MW is operational. Based on the planning in the 4th Socioeconomic and Cultural Development Plan (2005-2010), private sector is expected to have a share of at least 270Â MW in renewable energies. However, it is the government's duty to take the first step for investment in biomass and solar power plants; private sector may then play its part once the infrastructures to this end are laid out. At the moment, a 250Â kW plant is under construction in Shiraz and two more geothermal units with 5 and 50Â MW capacities will follow. Moreover, two biomass and solar energy plants, standing at 10 and 17Â MW, respectively, are of other upcoming projects. The project of Iran's renewable energy, aims to accelerate the sustainable development of wind energy through investment and removal of barriers. This preparatory project is funded by the global environment facility (GEF) and will provide for a number of international and national consultant missions and studies. Once the studies are concluded, a project to develop 25Â MW of wind energy in the Manjil region of Gilan will be prepared. It will be consistent with the national development frameworks and objectives and form part of 100Â MW of wind-powered energy, which is expected to be developed under the government's third 5-year national development plan (started 21 March 2000).