scholarly journals Effect of Residents’ Involvement with Small Hydropower Projects on Environmental Awareness

2020 ◽  
Vol 12 (15) ◽  
pp. 5994
Author(s):  
Keigo Noda ◽  
Kazuki Miyai ◽  
Kengo Ito ◽  
Masateru Senge
Keyword(s):  
Renewable Energy ◽  
Questionnaire Survey ◽  
Environmental Awareness ◽  
Small Hydropower ◽  
Irrigation Systems ◽  
Hydropower Plants ◽  
Resident Involvement ◽  
Key Factor ◽  
And Control ◽  
Land Improvement

Small hydropower plants utilizing unharnessed energy in existing irrigation systems are a prominent source of renewable energy. In Japan, land improvement districts play a key role in the management of irrigation systems, but face serious problems in terms of management sustainability and require participation from non-farmers. The purpose of this study was to examine the effect of residents’ involvement in small hydropower projects on their environmental awareness and understanding of the projects’ multifunctional regional value. We administered a questionnaire survey to 238 households in three areas: Itoshiro, Kashimo and Ibigawa. The respondents were categorized into four groups: participation, recognition, knowledge and control. Based on the degree of respondents’ involvement in small hydropower projects, inclusive relationships between their involvement and awareness were revealed. These relationships suggest that the trigger of resident involvement is a key factor in developing sustainable small hydro facilities within existing irrigation systems.

Hydro Tasmania – Renewable Energy Drivers, Action and Plans

2005 ◽  
Vol 16 (5) ◽  
pp. 803-813
Author(s):  
Roger Gill ◽  
Harry Andrews
Keyword(s):  
Renewable Energy ◽  
Electricity Market ◽  
Wind Farm ◽  
Environmental Science ◽  
Small Hydropower ◽  
Wind Generators ◽  
Hydropower Plants ◽  
Island State ◽  
National Electricity Market ◽  
Wind Resource

In Tasmania, the island state of Australia, the generator, Hydro Tasmania, is pushing technical, environmental and business boundaries in its plans to integrate a relatively high proportion (up to 20 percent) of large wind generators into its current complex mix of large and small hydropower plants. Its plans include projects to increase the efficiency of its older hydropower equipment as it prepares to supply much needed peaking capacity to the market in southern Australia via the groundbreaking Basslink undersea cable, which is due for completion in November 2005. Taken as a package these developments are creating a globally significant reference site for renewable energy systems. The paper will describe what is happening, and more importantly what is underpinning the developments, including: the harnessing of Tasmania's world-class wind resource, where recently constructed 1.75 MW wind turbines are achieving capacity factors of over 45 percent – some of the best productivity in the world today; the application of leading environmental science measures to ensure the sustainability of both the new wind farm developments and the transformation of the hydropower system to meet peak capacity demands; the relevance of the existing large hydropower storages that can operate in synergy with the wind resource; the contribution of Australia's renewable energy certificate scheme, which is effectively doubling the value of new renewable energy developments compared with existing generation sources; the application of the latest technology in hydropower turbines, combined with power system expertise from the world's leading manufacturers, to increase the efficiency of older hydropower generators, thereby more effectively harnessing the existing environmental footprint; and the transformation of Hydro Tasmania's business into a significant supplier and trader of premium value peak energy into the sophisticated Australian National Electricity Market.

Towards the Development of Sustainable Hydro Energy in Lithuania

2017 ◽  
Author(s):  
Jaunius Jatautas ◽  
Pranas Mierauskas
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Natural Environment ◽  
Negative Impact ◽  
Renewable Energy Sources ◽  
Social Situation ◽  
Human Society ◽  
Renewable Energy Resources ◽  
Small Hydropower ◽  
Hydropower Plants

Development of renewable energy sources together with sustainable development covers a complicated range of issues which require complex assessment in the context of Lithuania’s energy independence. Hydropower is an integral part of renewable energy resources and affects both the natural environment and human society. Although negative impact of hydropower on the environment is acknowledged, advances in modern technology can reduce the potential damage, especially when developing a network of small hydropower plants in Lithuania. Moreover, implementation and continuity of this kind of projects enables to improve the economic and social situation, e.g. by creating new jobs. Construction of small hydropower plants in combination with a sustainable development strategy would help to avoid the possible damage to the natural environment and would contribute to improvement of the country’s economic and social landscape. Limitation of the negative impact on the environment is primarily based on technological solutions – the appropriate construction of fish ladders or other passes at dams enables fish migration. Meanwhile, contribution to improvement of the economic and social situation in the case of small hydropower plants depends on political decisions and activity of lobby groups.

scholarly journals Assessment of the potential and prospects for the use of renewable energy sources in order to diversify electricity supply

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Artеm Golovin ◽  
Olga Solodukhina ◽  
Elvira Pyanikova
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Small Towns ◽  
Energy Sources ◽  
Electricity Supply ◽  
Livestock Waste ◽  
Small Hydropower ◽  
Thermal Generation ◽  
Hydropower Plants ◽  
Murmansk Region

The purpose of the article is to assess the potential and prospects of using renewable energy sources in order to diversify electricity supply. The object of the study is the natural and economic conditions that determine the feasibility of using renewable energy sources in order to diversify electricity supply. The basis of the study was the data of domestic and foreign scientists in the field of assessing the possibilities of using renewable energy sources. The region of activity of the guaranteeing supplier JSC AtomEnergoSbyt is represented by the Kursk, Smolensk, Tver and Murmansk regions. An assessment of the installed electric power generation capacities made it possible to determine that in the Kursk and Smolensk regions generation with the use of atomic energy predominates. In the Tver region, the largest share of installed capacities is accounted for by nuclear generation, however, thermal generation has a significant share. The installed capacities of the Murmansk region demonstrate significant differentiation. There is generation in the region using atomic, hydrocarbon and renewable energy sources. The region is the only one among the considered regions that uses renewable energy sources. More than half of the generation of electricity in the Murmansk region occurs using renewable energy sources. An assessment of the potential of renewable energy sources in the region of activity of the guaranteeing supplier showed that in the Kursk, Smolensk and Tver regions it is inexpedient to place generation facilities using solar, wind, geothermal and small river energy. In the Murmansk region, on the contrary, there is sufficient potential to accommodate wind and small hydropower plants. An assessment of the bioenergy potential of the livestock industry showed that it is advisable to develop biogas energy in the Kursk, Smolensk and Tver regions, which, on the one hand, will allow the disposal of livestock waste, and, on the other hand, provide small towns with electricity and heat.

scholarly journals ON ISSUE OF USING MICROHYDROPOWER PLANTS FOR IRRIGATION PURPOSES

2020 ◽  
Author(s):  
V. V. Slabunov ◽  
◽  
A. A. Kirilenko ◽  
O. V. Voyevodin ◽  
◽  
...  
Keyword(s):  
Power Plants ◽  
Water Movement ◽  
Hydraulic Turbine ◽  
Hydroelectric Power Station ◽  
Hydroelectric Power ◽  
State Control ◽  
Small Hydropower ◽  
Irrigation Systems ◽  
Irrigation Network ◽  
Hydropower Plants

Purpose: to assess the technological and regulatory and technical capabilities of developing and applying power supply complexes using the energy of water flow, in relation to Russian standards to meet the electricity needs of decentralized reclamation (irrigation) systems. Materials and methods. Scientific and technical materials of Russian and foreign authors, as well as the regulatory and technical base of the Russian Federation were used as the initial data. The information processing methods were comparison, analogy, classification and systematization. Results and discussion. Among various design features of the hydropower equipment under consideration, capable of meeting local needs for electricity and at the same time having the ability to combine with elements of an irrigation network (based on relative dimensions, shape, efficiency, etc.), micro-hydroelectric power plants stand out: with propeller, radial axial, axial and capsule hydraulic turbine. The most effective schemes for installing hydraulic turbines are horizontal direct-flow and vertical Z-shaped ones. Analysis of the register of standards in the field of technical regulation in the sphere of hydropower showed that out of 131 standards under consideration, 106 can be partially applied to micro hydropower plants. Providing low-power hydropower facilities with standardization documentation has a priority in the direction of operation (21 %), monitoring and state control (19 %), and repair and reconstruction (19 %). Conclusions. The functioning of a micro-hydroelectric power station based on the energy of water movement provides for the use of a set of design solutions, which requires additional study in order to be linked to the elements of reclamation (irrigation) systems. The scope of the considered standardization documents can be extended to small hydropower facilities, taking into account the specific features of their operation. In this regard, there is a need for the development of scientifically grounded provisions of existing or being developed regulatory documents.

ACCESS TO AND CONTROL OVER LAND AS GENDERED: CONTEXTUALIZING WOMEN’S ACCESS AND OWNERSHIP RIGHTS OF LAND IN RURAL GHANA

2016 ◽  
Vol 45 (2) ◽  
pp. 28-48 ◽  
Author(s):  
Isaac Dery
Keyword(s):  
Thematic Analysis ◽  
Rural Women ◽  
Rural Poor ◽  
Rural Ghana ◽  
Secure Access ◽  
Key Factor ◽  
Access Rights ◽  
Ownership Rights ◽  
And Control ◽  
Relationship Of

Women’s access to and control over productive resources, including land, has increasingly been recognized in global discussions as a key factor in reducing poverty, ensuring food security and promoting gender equality. Indeed, this argument has been widely accepted by both feminists and development theorists since the 1980s. Based on qualitative research with 50 purposively selected men and women, this study explored the complexity of women’s access to and control over land within a specific relationship of contestations, negotiations, and manipulations with men. Data were analyzed using thematic analysis. While theoretically, participants showed that women’s [secure] access to and control over land has beneficial consequences to women themselves, households and the community at large, in principle, women's access and control status was premised in the traditional framework which largely deprives women, equal access and/or control over the land. The study indicates that even though land is the most revered resource and indeed, the dominant source of income for the rural poor, especially women, gender-erected discrimination and exclusion lie at the heart of many rural women in gaining access to land. This study argues that women's weak access rights and control over land continue to perpetuate the feminization of gender inequality–while men were reported to possess primary access and control over land as the heads of households, women were argued to have secondary rights due to their ‘stranger statuses’ in their husbands’ families. Overall, the degree of access to land among women was reported to be situated within two broad contexts–marriage and inheritance.

scholarly journals Development of a Hydropower Turbine Using Seawater from a Fish Farm

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 266
Author(s):  
Md Rakibuzzaman ◽  
Sang-Ho Suh ◽  
Hyoung-Ho Kim ◽  
Youngtae Ryu ◽  
Kyung Yup Kim
Keyword(s):  
Power Plants ◽  
Guide Vane ◽  
Cross Flow ◽  
Synchronous Generator ◽  
Fish Farm ◽  
Hydropower Plant ◽  
Fish Farms ◽  
Data Simulation ◽  
Small Hydropower ◽  
Hydropower Plants

Discharge water from fish farms is a clean, renewable, and abundant energy source that has been used to obtain renewable energy via small hydropower plants. Small hydropower plants may be installed at offshore fish farms where suitable water is obtained throughout the year. It is necessary to meet the challenges of developing small hydropower systems, including sustainability and turbine efficiency. The main objective of this study was to investigate the possibility of constructing a small hydropower plant and develop 100 kW class propeller-type turbines in a fish farm with a permanent magnet synchronous generator (PMSG). The turbine was optimized using a computer simulation, and an experiment was conducted to obtain performance data. Simulation results were then validated with experimental results. Results revealed that streamlining the designed shape of the guide vane reduced the flow separation and improved the efficiency of the turbine. Optimizing the shape of the runner vane decreased the flow rate, reducing the water power and increasing the efficiency by about 5.57%. Also, results revealed that tubular or cross-flow turbines could be suitable for use in fish farm power plants, and the generator used should be waterproofed to avoid exposure to seawater.

Sign in / Sign up

Export Citation Format

Share Document