scholarly journals Solar Pumps and Water-Energy Nexus in Gujarat, India: First Assessment of the World’s Largest Pilot on Grid-connected Solar Irrigation Pumps

2021 ◽  
Author(s):  
Tushaar Shah ◽  
Gyan Rai
Keyword(s):  
Solar Energy ◽  
Energy Use ◽  
Ghg Emissions ◽  
Pilot Project ◽  
Groundwater Depletion ◽  
Groundwater Abstraction ◽  
Large State ◽  
Groundwater Overdraft ◽  
Water Energy Nexus ◽  
Water Accounting

Abstract The epicentre of Gujarat’s perverse nexus between electricity subsidy and groundwater depletion lies in its legacy of 485,000 unmetered tubewell owners who have fiercely resisted metering for 20 years. These comprise 40 percent of Gujarat’s irrigation connections but account for 49 percent of agricultural load, 71 percent of energy use in groundwater abstraction and 90 percent of farm power subsidies. Suryashakti Kisan Yojana (SKY), a large, state-wide pilot project which solarised and net-metered 4215 tubewells and began paying farmers for evacuating surplus solar energy, has been enthusiastically embraced by unmetered and metered farmers alike. SKY promises politically acceptable resolution of a wicked energy-water conundrum that afflicts much of India and west Asia. Mainstreaming SKY can significantly reduce groundwater overdraft, GHG emissions and subsidy burden. It will increase farm incomes while radically improving energy-water accounting and management. Gujarat government should invest in compulsory, free-of-cost solarisation of tubewells. We show that doing so is profitable for government and beneficial for farmers, climate and environment.

scholarly journals Analysis of the requrements for installing photovoltaic systems in order to achieve improved performances: Case study of the City of Nis

2017 ◽  
Vol 15 (2) ◽  
pp. 145-152
Author(s):  
Marija Stamenkovic ◽  
Snezana Antolovic ◽  
Dragan Kostic ◽  
Mihailo Mitkovic
Keyword(s):  
Solar Energy ◽  
Energy Use ◽  
Pilot Project ◽  
Climatic Conditions ◽  
Renewable Energies ◽  
Small Scale ◽  
Photovoltaic Systems ◽  
Solar Plant ◽  
Sustainable Electricity ◽  
The City

The use of renewable energies is imperative nowadays. One of the ways to use clean technologies is installation of photovoltaic systems which convert solar energy into electricity, through solar plants. The country?s potential for usage of solar energy is determined by the analysis of climatic conditions. The research is conducted on the example of a small-scale solar plant - a pilot project installed in the city of Nis, concerning the analysis of the mounted system and giving the recommendations for their design with the aim of improving efficient energy use. Limitations in the installation of solar plants can occur in the case of an unfavorable position of the building where the installation is planned, and more often, the limitations are related to the investment costs and length of the repayment period of these kinds of technologies. This paper represents a promotion of sustainable electricity supply for our country and it is in correlation with the legal directives of using renewable energies.

Scope and Options of Solar Energy Use in Agriculture in Eastern region of India

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
A RAHMAN ◽  
B. P. BHATT
Keyword(s):  
Solar Energy ◽  
Energy Efficient ◽  
Energy Use ◽  
Geographical Location ◽  
Eastern Region ◽  
Groundwater Abstraction ◽  
Energy Poverty ◽  
Small Holders ◽  
Agricultural Use ◽  
Irrigation Technologies

Groundwater abstraction to meet irrigation demand and application of water and energy efficient irrigation technologies is becoming a difficult affair due to significant energy poverty and pervasive electricity deficits in Eastern region of India. This undermines the production and productivity of small holders. This paper discusses the energy scarcity and possible remedy by the use of solar energy as this region receives abundance solar radiation due to its geographical location and 250 -300 bright sunny days per year which can be year round source of energy for agricultural use.

PERFORMANCE OF SMALL CAPACITY SOLAR PUMP IN EASTERN REGION OF INDIA

2020 ◽  
Vol 7 (01) ◽  
Author(s):  
ATIQUR RAHMAN
Keyword(s):  
Energy Use ◽  
Pressure Head ◽  
Eastern Region ◽  
Groundwater Abstraction ◽  
Annual Fluctuation ◽  
Fuel Prices ◽  
Delivery Pressure ◽  
Current Scenario ◽  
Use Efficiency ◽  
Solar Pump

Solar energy use for groundwater abstraction is one of the most viable options for smallholders’ irrigation in current scenario of increasing fuel prices. Therefore, the dissemination and adoption of solar pumps of low capacities among these farmers is in demand. In this paper a case study was in eastern region to assess the performance of 3horsepower solar pump, as this capacity pump is currently being promoted by the governments to small farmers at subsidised rates. In eastern region where groundwater regime in most of the area is ranging5-10 m bgl with annual fluctuation of ±2 to ±4 m, and abstracted groundwater by a 3 horsepower solar pumpis rangedfrom 100-173 m3/day, depending upon the months on a bright day. Thispump also offers a delivery pressure head 1.0- 1.5 kg/cm2, and therefore facilitates pressured irrigation for improved water use efficiency.

Wells for welfare or illfare? Cost of groundwater depletion in Coimbatore, Tamil Nadu, India

Water Policy ◽  
2008 ◽  
Vol 10 (4) ◽  
pp. 391-407 ◽  
Author(s):  
K. Palanisami ◽  
A. Vidhyavathi ◽  
C. R. Ranganathan
Keyword(s):  
Tamil Nadu ◽  
Economic Cost ◽  
Groundwater Depletion ◽  
Cropping Pattern ◽  
Watershed Development ◽  
Groundwater Overdraft ◽  
Well Spacing ◽  
Coimbatore District ◽  
Tamil Nadu State ◽  
The Cost

Groundwater depletion is experienced in several districts of Tamil Nadu state and Coimbatore district is heading in that direction. The average well failure rate is 47% for open wells and 9% for bore wells. The total cost of depletion for new wells varies from Rs 1,999 per ha to Rs 90,975 per ha. The electricity subsidy to the farmers has varied from Rs 22,621 per ha for coconut growers to Rs 25,498 per ha for banana growers as on 2004. The cost of irrigation per cubic metre (m3) is less on large farms. The average net return with free electricity varies from Rs 0.14 per m3 to Rs 1.38 per m3 and is drastically reduced when electricity is priced at an economic cost, i.e. Rs −1.15 to Rs −0.14 per m3. The shift in cropping pattern towards high value crops helped the farmers to some extent to bear the cost of externalities arising out of depletion. The social cost caused by groundwater overdraft is about Rs 554.3 million, which may increase when the well density increases further. Suggested policy options are to change the cropping pattern to less water-consuming crops, to invest in watershed development activities, to change inefficient pumpsets and to adopt well spacing norms.

scholarly journals Spatial analysis of energy use and GHG emissions from cereal production in India

2019 ◽  
Vol 654 ◽  
pp. 841-849 ◽  
Author(s):  
N.D. Rao ◽  
M. Poblete-Cazenave ◽  
R. Bhalerao ◽  
K.F. Davis ◽  
S. Parkinson
Keyword(s):  
Spatial Analysis ◽  
Energy Use ◽  
Ghg Emissions ◽  
Cereal Production

Potential solar energy use in the global petroleum sector

Energy ◽  
2017 ◽  
Vol 118 ◽  
pp. 884-892 ◽  
Author(s):  
Jingfan Wang ◽  
John O'Donnell ◽  
Adam R. Brandt
Keyword(s):  
Solar Energy ◽  
Energy Use ◽  
Petroleum Sector

scholarly journals Strategies to Improve the Energy Performance of Buildings: A Review of Their Life Cycle Impact

Buildings ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 105 ◽  
Author(s):  
Nadia MIRABELLA ◽  
Martin RÖCK ◽  
Marcella Ruschi Mendes SAADE ◽  
Carolin SPIRINCKX ◽  
Marc BOSMANS ◽  
...  
Keyword(s):  
Life Cycle ◽  
Case Studies ◽  
Environmental Impacts ◽  
Energy Use ◽  
Ghg Emissions ◽  
Energy Performance ◽  
Environmental Benefits ◽  
Embodied Energy ◽  
Trade Offs ◽  
Operational Energy

Globally, the building sector is responsible for more than 40% of energy use and it contributes approximately 30% of the global Greenhouse Gas (GHG) emissions. This high contribution stimulates research and policies to reduce the operational energy use and related GHG emissions of buildings. However, the environmental impacts of buildings can extend wide beyond the operational phase, and the portion of impacts related to the embodied energy of the building becomes relatively more important in low energy buildings. Therefore, the goal of the research is gaining insights into the environmental impacts of various building strategies for energy efficiency requirements compared to the life cycle environmental impacts of the whole building. The goal is to detect and investigate existing trade-offs in current approaches and solutions proposed by the research community. A literature review is driven by six fundamental and specific research questions (RQs), and performed based on two main tasks: (i) selection of literature studies, and (ii) critical analysis of the selected studies in line with the RQs. A final sample of 59 papers and 178 case studies has been collected, and key criteria are systematically analysed in a matrix. The study reveals that the high heterogeneity of the case studies makes it difficult to compare these in a straightforward way, but it allows to provide an overview of current methodological challenges and research gaps. Furthermore, the most complete studies provide valuable insights in the environmental benefits of the identified energy performance strategies over the building life cycle, but also shows the risk of burden shifting if only operational energy use is focused on, or when a limited number of environmental impact categories are assessed.

scholarly journals A Comparison of Life Cycle Energy and Carbon Impacts for Passive Detached Accessory Dwelling Units and Their Design Implications

2021 ◽  
Author(s):  
Deva Siva Veylan
Keyword(s):  
Life Cycle ◽  
Energy Use ◽  
Performance Metrics ◽  
Ghg Emissions ◽  
Energy Performance ◽  
Design Standards ◽  
Passive House ◽  
Accessory Dwelling Units ◽  
Passive Design ◽  
House Size

Detached accessory dwelling units are a building typology that, when built to passive design standards, can help reduce GHG emissions while addressing the socioeconomic pressures facing many housing markets. Energy performance metrics like those used in passive design standards are based on per unit of floor area and lead to a size-bias against smaller housing typologies. A life cycle assessment of cost-optimal passive house sizes ranging from 230 m² (2,500 ft²) to 30 m² (300 ft²) is performed to understand their total life cycle energy use and GHG emissions implications. Additionally, an analysis using BEopt examines operational energy use for 10 cost-optimal passive house sizes ranging from 230 m² (2,500 ft²) to 30 m² (300 ft²) across all 17 climate zones and examines how cost-optimal passive design changes with house size. The results show that per-occupant energy use and GHG emissions are similar or better for small house sizes and that cost-optimal passive design does not change significantly with house size.

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