Electricity generation prospects from clustered smallholder and irrigated rice farms in Ghana
| Autor: | Ahmad Addo, Pol Arranz-Piera, Enrique Velo, Francis Kemausuor |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics, Universitat Politècnica de Catalunya. EScGD - Engineering Sciences and Global Development |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Crop residue
Energia elèctrica -- Producció -- Ghana 020209 energy 02 engineering and technology Biomassa 010501 environmental sciences 01 natural sciences Ghana Industrial and Manufacturing Engineering Agricultural economics Energy planning Electricity Bioenergy 0202 electrical engineering electronic engineering information engineering Economics Financial analysis Agricultural residues Biomass Electrical and Electronic Engineering 0105 earth and related environmental sciences Civil and Structural Engineering Smallholder farms Desenvolupament humà i sostenible [Àrees temàtiques de la UPC] business.industry Mechanical Engineering Internal rate of return Building and Construction Investment (macroeconomics) Pollution Energies::Energia de la biomassa [Àrees temàtiques de la UPC] Renewable energy General Energy Agriculture Electric power production--Ghana business |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Recercat. Dipósit de la Recerca de Catalunya instname |
| Popis: | © 2017. This version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ In farming communities in Ghana and the West African region, crop residues are often unused and remain available for valorisation. This study has analysed the prospects of electricity generation using crop residues from smallholder farms within defined clusters. Data was collected from 14 administrative districts in Ghana, where surveys were conducted and residue-to-product ratios determined in farmer fields. Thermochemical characterisation of residues was performed in the laboratory. The number of clustered farms, reference residue yields and residue densities were determined to assess the distances within which it would be feasible to supply feedstock to CHP plants. The findings show that in most districts, a minimum of 22–54 larger (10 ha) farms would need to be clustered to enable an economically viable biomass supply to a 1000 kWe plant. A 600 kWe plant would require 13 to 30 farms. Financial analysis for a 1000 kWe CHP plant case indicate that such investment would not be viable under the current renewable feed-in-tariff rates in Ghana; increased tariff by 25% or subsidies from a minimum 30% of investment cost are needed to ensure viability using internal rate of return as an indicator. Carbon finance options are also discussed. |
| Databáze: | OpenAIRE |
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