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Renewables Global Status Report. Paris: REN21 Secretariat, Perennial herbaceous grasses such as switchgrass and Miscanthus can be harvested for fifteen years before replanting becomes necessary […].
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Germany currently produces 7 percent of its energy from biomass. Project Drawdown defines biomass as: the use of perennial biomass feedstock for dedicated electricity generation and combined heat and power generation.
Considering their variety of potential uses, it is important to consider the development and deployment of perennial crops as an alternative to annual bioenergy crops. Perennials are generally defined by their lifetime of 3 or more years. Through various life cycle assessment studies Searchinger et al, ; DeCicco et al, performed on annual bioenergy crops such as corn, it has been shown that they are not much better than fossil fuel energy sources in terms of climate and energy impacts. Perennial grasses, on the other hand, have naturally high productivity, need fewer chemicals and water, and are not food crops; hence, many governments worldwide are choosing them as future energy farming systems El Bassam, This analysis focuses on perennial biomass , and models both woody and herbaceous plants as the main source of feedstock for dedicated electricity generation and combined heat and power generation.
The total addressable market for electricity generation technologies using perennial crops as feedstock is based on estimated global electricity generation in terawatt-hours from Impacts of increased adoption of biomass from were generated based on three growth scenarios, derived from the evaluation of scenarios from two global systems models. Financial assumptions for biomass electricity generation were used from many peer-reviewed sources to determine capital and operating costs. Emissions were estimated based on a few studies that focused on electricity production from perennial feedstock such as miscanthus and willow short rotation coppice.
An average capacity factor of 62 percent was used for the solution, compared to 55 percent for conventional technologies. Grid emissions factors were calculated based on the annual mix of different electricity generating technologies over time. Emissions factors for each technology were determined through a meta-analysis of multiple sources, accounting for direct and indirect emissions. A straightforward comparison of the adoption and emissions results with other sources is not possible, due to the specificities of the feedstock considered herein, since all other global energy system models consider aggregate numbers for biomass and waste.
Benefits of Biomass
Increasing the use of this solution from approximately 0. Under the Plausible Scenario, this solution could reduce 7. Both the Drawdown and Optimum Scenarios are less ambitious in the growth of perennial biomass for generation technologies, with impacts on greenhouse gas emissions reductions over of 1. This is due to assumptions made regarding adoption trajectories, system dynamic analysis, and integration with other solutions. Bearing in mind the portfolio of other renewable energy technologies available, 2 percent of electricity generation from perennial biomass in still comprises a significant portion of global electricity demand.
While the carbon savings may not be tremendous, the model did not account for electricity generation technologies with carbon capture and storage. Despite the robust adoption projections for total biomass and waste, the mix of electricity-generating technologies co-firing or dedicated biomass, pure electricity or co-generation or fuels wood pellets, agricultural residues, municipal solid waste, synthetic gas, biogas , and the share of perennial crops used, bring significant levels of uncertainty.
This study uses as the base year due to the availability of global adoption data for all Project Drawdown solutions evaluated.
Based on literature from a few regions and applied to a global scale, it was found that only 0. Sector Summary: Electricity Generation. Complete this form to contact the Drawdown Research team. Credit: Arterra. The industry exists because of significant government subsidies.
Biomass Energy Basics | NREL
This analysis assumes all biomass is derived from perennial bioenergy feedstock—not forests, annuals, or waste — and replaces coal and natural gas in electricity production. By , biomass energy could reduce 7. As clean wind and solar power become more available in a flexible grid, the need for biomass energy will decline.
Biomass Project Drawdown defines biomass as: the use of perennial biomass feedstock for dedicated electricity generation and combined heat and power generation. Methodology This analysis focuses on perennial biomass , and models both woody and herbaceous plants as the main source of feedstock for dedicated electricity generation and combined heat and power generation.enter site
The share of biomass from these values is estimated to be This scenario results in a 1. Similar calculations to the Plausible Scenario were considered for the electricity generated from perennial crops. As emissions are offset by absorption, biomass power generation does not cause any change to CO2 concentrations in the atmosphere.
To preserve great woodlands, it is necessary to care for them by, for example, forest thinning and cutting grown trees. Utilizing wood biomass from lumber from forest thinning and other unused resources, this power generation system is expected to help revitalize local communities. Our Power Plant. Biomass fuels derived from plant is considered to emit no CO2, based on the idea that the amount of CO2 absorbed by growing trees equals the amount of CO2 emitted during combustion.
Is Biomass Really Renewable?
After the start of operation, biomass power plants stably supply electric power without being affected by weather or other conditions. The power generation volume may be controlled according to power consumption. Biomass power generation burns materials derived from living things to produce high-temperature steam with high pressure that rotates turbines to generate electric power.
This production of steam requires the efficient combustion of fuels.
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