• With capture from a power plant (coal or natural gas) can the energy needed be provided by the power plant it self, but with a reduction in efficiency.
• An industrial plant (power demanding industry) very rarely has surplus energy available. And it might be necessary to build an energy plant which can supply the capture process with energy.
• The energy plant can burn coal, gas or biomass and the CO₂ from the combustion should also be captured. The disadvantage of coal is the high CO₂ content in relation to the amount of energy. This can result in a very large CO₂ capture plant which is unwanted or a reduction in the capture percentage (should be above 85%).
• A natural gas fired energy plant is a better alternative due to the low CO₂ content in relation to the amount of energy.
• Bioenergy produces more CO₂ per. energy unit than natural gas, but is considered to be neutral and would therefore not be counted in the plants CO₂ accounting.
• Capturing the CO₂ produced from combustion of bioenergy would in principal lead to negative CO₂ emissions.

Biomass is fired in a boiler and the energy in the form of steam is used in the stripper and for operating flue gas fans and CO2 compressors.

The figure below illustrates the concept of combining power production or industry, CO₂ capture and bioenergy.