Perennial tree pruning biomass waste exploitation for electricity generation: The perspective of Greece

2019 ◽  
Vol 31 ◽  
pp. 77-85 ◽  
Author(s):  
Angeliki Sagani ◽  
Marianna Hagidimitriou ◽  
Vassilis Dedoussis
2014 ◽  
Vol 3 (3) ◽  
pp. 39 ◽  
Author(s):  
Dimitrios Zafirakis ◽  
Christiana Papapostolou ◽  
Emilia Kondili ◽  
John K. Kaldellis

2017 ◽  
Vol 29 (2) ◽  
pp. 165-183 ◽  
Author(s):  
Michael O Asibey ◽  
Vivian Yeboah ◽  
Eric K Adabor

The purpose of the study was to examine the potential of palm biomass, taking a case of the Juaben Oil Mills in the Ashanti Region of Ghana, which has over the years generated electricity for its operations from its waste products and other benefits that have accrued to the company and the host community. Primary data collection and intensive desk study approaches were employed albeit qualitatively, to describe the use of palm biomass as supplementary source of electricity generation in Ghana. The study showed that there is enough potential (waste by-products) for electricity generation to supplement current production from hydropower to meet growing demand. However, policy and institutional arrangements do not easily allow generation and extension for communal benefits. The authors therefore recommend a relook at existing policy and institutional arrangements to help promote this alternative source of energy for efficient and sustainable domestic and industrial uses. We also argue that ensuring efficiency in energy generation calls for R&D into its commercial potential and explore more efficient means of managing industrial and other agro biofuel wastes in developing economies. Future energy policy must also create and harness diversity of available biomass resources and reduce the delivery risks of the resources.


Author(s):  
Ramesh Agarwal ◽  
Ping Wang ◽  
Lee Chusak

An equilibrium economic model for policy evaluation related to electricity generation has been developed; the model takes into account the non-renewable and renewable energy sources, demand and supply factors and environmental constraints. The non-renewable energy sources include three types of fossil fuels: coal, natural gas and petroleum, and renewable energy sources include nuclear, hydraulic, wind, solar photovoltaic, biomass wood, biomass waste and geothermal. Energy demand sectors include households, industrial manufacturing and commercial enterprises (non-manufacturing businesses such as software firms, banks, restaurants, service organizations, universities, etc.). Energy supply takes into account the electricity delivered to the consumer by the utility companies at a certain price which maybe different for retail and wholesale customers. Environmental risks primarily take into account the CO2 generation from fossil fuels. The model takes into account the employment in various sectors and labor supply and demand. Detailed electricity supply and demand data, electricity cost data, employment data in various sectors and CO2 generation data are collected for a period of seventeen years from 1990 to 2006 in U.S. The model is calibrated for the aggregate data. The calibrated model is then employed for policy analysis experiments if a switch is made in sources of electricity generation, namely from fossil fuels to renewable energy sources. As an example, we consider a switch of 10% of electricity generation from coal to 5% from wind, 3% from solar photovoltaic, 1% from biomass wood and 1% from biomass waste. It should be noted that the cost of electricity generation from different sources is different and is taken into account. The consequences of this switch on supply and demand, employment, wages, and emissions are obtained from the economic model under three scenarios: (1) energy prices are fully regulated, (2) energy prices are fully adjusted with electricity supply fixed, and (3) energy prices and electricity supply both are fully adjusted.


Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1793
Author(s):  
Zahida Aslam ◽  
Hu Li ◽  
James Hammerton ◽  
Gordon Andrews ◽  
Andrew Ross ◽  
...  

Tanzania has a high rural population, of which many rely on off-grid diesel generators to produce electricity. The focus of this paper is to assess if the waste biomass residues in Tanzania have sufficient energy potential to produce renewable electrical energy for small-scale electricity generation using off-grid diesel generators coupled with anaerobic digestion (AD) and/or gasification. The gaseous fuel produced can then be used to substitute diesel fuel used in small-scale dual fuel diesel gen-sets; thus, providing more affordable electricity whilst reducing dependency on fossil fuels. The biomass waste streams estimated are those arising from agriculture, forestry, livestock, and urban human waste. To answer this question, the energy potentials of each of these biomass waste streams are quantified, followed by further calculations to determine the electricity generation capacity per stream based on overall efficiencies of 10 and 25%. The results show that combined these waste streams have an energy potential of 385 PJ (for the base year of 2018) generated from 26,924 kilotonnes (kt). Collectively, these residues can produce at least 1.2 times the electricity generated nationally in 2018 using AD and gasification coupled with a diesel gen-set engine.


2009 ◽  
Author(s):  
George Grote
Keyword(s):  

2009 ◽  
Author(s):  
George Grote
Keyword(s):  

2009 ◽  
Author(s):  
George Grote
Keyword(s):  

2009 ◽  
Author(s):  
George Grote
Keyword(s):  

Author(s):  
Connop Thirlwall
Keyword(s):  

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