Power plants generate electricity by burning coal, biomass, or incinerating medical and domestic waste to heat boilers, producing high-temperature and high-pressure steam to drive steam turbines, which in turn drive generators to generate electricity. Driving steam turbines for power generation can achieve both environmental protection and energy recovery benefits.
Municipal Solid Waste Incineration Power Generation ProjectCase Description
This project is located in a coastal city in China, being a large-scale waste incineration power plant with a daily treatment capacity of approximately 2,000 tons of municipal solid waste. The power plant adopts advanced incinerator technology to incinerate collected municipal solid waste (including medical waste that is co-incinerated after strict treatment) at high temperatures, generating high-temperature and high-pressure steam (parameters: 450°C, 6MPa). The steam drives a 25MW condensing steam turbine, which in turn drives a generator to produce electricity. Meanwhile, the project integrates a flue gas purification system (such as desulfurization, denitrification and baghouse dust collection) to ensure emissions meet the standard, and utilizes ash and slag for building material reproduction to achieve resource recycling.
Operating income
Energy recovery and economic benefits: The annual power generation is about 180 million kilowatt hours, of which the proportion of self use electricity is about 10%. The remaining electricity is sold online, and the annual electricity sales revenue is about 90 million yuan (calculated based on local electricity prices of 0.5 yuan/kWh). Compared to traditional landfill treatment, it reduces waste disposal costs and creates additional revenue.
Environmental benefits: Reduce carbon dioxide emissions by approximately 150000 tons per year (equivalent to replacing coal-fired power generation), while avoiding methane emissions from landfills and soil pollution. The garbage reduction rate has reached over 90%, significantly alleviating the problem of urban "garbage siege".
Social benefits: Provide stable power supply, support local power grid peak shaving, and create employment opportunities. The project complies with the national "carbon neutrality" policy and has received government subsidies and green certificate rewards.
