Alternative Profits Blog
Power Plant CCS - Site and Blog for CO2 Capture and SequestrationHere's an interesting site (and blog) dedicated to CO2 sequestration at power plants. Aptly called Power Plant CCS, it provides the latest updates on CCS at power plants worldwide. More interestingly, it has a special emphasis on researching the newest and novel methods for CCS at these plants.
For instance, there are three novel approaches about which detailed inputs are provided: CO2 sequestration using mineral carbonation, algae-based CO2 capture,
Carbon Mitigation through use of Biomass instead of Coal .
Given that carbon capture and storage is likely to be one of the most important concepts that the world will be keen on researching, and also given that power plants have an urgent need to become less CO2 polluting, this is indeed an important site.
Anaerobic Digestion Operating Costs - AD O&M ExpensesOperations and maintenance costs for generating electricity from anaerobic digesters costs about 2.5 cents per KWh
Anaerobic Digestion Capital Costs - AD Capex, Capital ExpensesThe capex for electricity generation using anaerobic digesters is about $2.5 million per MW. The main cost component is for the digester.
Small Hydro Energy Operating Costs – Small Hydro O&M ExpensesBased on our estimates based upon data from existing small hydro plants, the operational and maintenance costs electricity generation from small hydro are approximately 3-4 cents per KWh.
Small Hydro Capital Costs - Small Hydro Capex, Capital ExpensesSetting up a small hydro electricity generation plant will cost approximately $1.3-1.5 million per MW in capital expenses.
Approximate Cost and Cost break-up
The capital cost is broadly divided under four heads
Capital cost break-up
Element of Investment Contribution to Cost %
Hydrotechnical constructions 60
Electrical equipments 10
Cost of Exploitation 0.5
Geothermal Energy Operating Costs – Geothermal O&M ExpensesGeothermal energy based power production does require some amount of maintenance operations, but the operations and maintenance costs of geothermal are lower than wind and solar thermal.
The operations and maintenance costs for generating electricity from geothermal sources is about 2 cents per KWh
Geothermal Energy Capital Costs - Geothermal Capex, Capital ExpensesGeothermal power plants involve significant infrastructural expense; while the running costs for geothermal power generation are reasonable, this renewable source has quite a high capital cost structure.
As of mid 2009, geothermal energy has capital costs of about $2.6 million per MW