A review on operation and maintenance of hydropower plants

Kumar, Krishna; Saini, R.P.

doi:10.1016/j.seta.2021.101704

Cited by 42 publications

(23 citation statements)

References 100 publications

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“…They claimed that maintenance costs should be prioritized to become successful for levelized energy costs. Moreover, Kumar and Saini [24] also focused on the performance indicators of hydropower plants. It is identified that operational costs should be evaluated carefully for this condition.…”

Section: Literature Reviewmentioning

confidence: 99%

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Bipolar q-ROF Hybrid Decision Making Model With Golden Cut for Analyzing the Levelized Cost of Renewable Energy Alternatives

Yüksel

Dınçer

et al. 2022

IEEE Access

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Energy costs are the key factors regarding the selection of appropriate renewable energy (RWG) alternatives. All costs of a power plant, such as investment, operation, maintenance, and repair are considered in the scope of levelized costs. Therefore, for the effective determination of the selling price of the energy, levelized cost has a guiding role. Because the levelized costs of RWG alternatives develop the sustainable production and energy consumption for the long term, the leading indicators of these costs should be analyzed significantly. Accordingly, in this study, it is aimed to investigate the levelized cost of RWG alternatives by using bipolar q-rung orthopair fuzzy (q-ROF) hybrid decision-making approach. The novelty of this study is to recommend an integrated decision-making model based on bipolar and q-ROFSs with golden cut. At the first stage, bipolar q-ROF multi stepwise weight assessment ratio analysis (M-SWARA) is employed for weighting the selected criteria of levelized costs of RWG alternatives. At the following stage, bipolar q-ROF technique for order preference by similarity to ideal solution (TOPSIS) is considered to rank the alternatives in terms of the levelized cost performance. On the other side, vise kriterijumska optimizacija i kompromisno resenje (VIKOR) model is also considered to rank the alternatives. In addition to this issue, the sensitivity analysis is also performed with four cases comparatively. Hence, consistency, reliability and coherency of the proposed model can be measured. It is identified that capacity loss has the greatest importance regarding the levelized cost of RWG projects. Solar is found as the best clean energy type with respect to the levelized cost management performance. In this context, it would be appropriate for investors to design projects close to the center. This will contribute to increasing the efficiency and productivity of these projects.

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Section: Literature Reviewmentioning

confidence: 99%

“…On the other side, potential loss of capacity for generated electricity plays a significant role as for the capacity loss. Additionally, energy loss also leads to higher levelized energy costs [2]. Deviation of expected service life of the energy plants is quite important for the management of the levelized energy costs.…”

Section: Introductionmentioning

confidence: 99%

Bipolar q-ROF Hybrid Decision Making Model With Golden Cut for Analyzing the Levelized Cost of Renewable Energy Alternatives

Yüksel

Dınçer

et al. 2022

IEEE Access

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show abstract

“…This paper assumes that all ICs will occur in year zero. Table 4 shows the key technological and economic assumptions made in the calculations that reproduce the current state of the country's hydropower industry [31][32][33]. The reliability assessment in generation systems is very important [34,35], and since this study considers the overall life cycle cost of SHP, the reliability aspects are considered in the form of the annual plant load factor, rehabilitation times and replacement costs.…”

Section: Lcoe Calculationsmentioning

confidence: 99%

Levelized Cost of Electricity Generation by Small Hydropower Projects under Clean Development Mechanism in India

Patro

Kishore²,

Haghighi

2022

Energies

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Contrary to conventional fossil fuel-based electricity generation technologies, renewable energy centered technologies, specifically small hydropower, release a lesser amount of anthropogenic greenhouse gases but are normally more expensive. A major segment of the capital investment in the current small hydropower scenario accounts for equipment and construction process costs. The construction and cost administration process are generally limited to analysis of the capital cost of civil constructions, electro-mechanical equipment works, neglecting the costs related to operating and maintaining the plant, replacement or refurbishment, certified emission reductions, among others. Contemporary studies indicate that these costs form a substantial fraction of the total capital investment. Consequently, for cost management and investment decision making, small hydropower plant developers are drawing increased attention in recent years towards conducting life cycle costing studies that take into account the ignored costs. In addition, small hydropower plants in developing nations can become more competitive by trading the emission reductions achieved under the provision of the Clean Development Mechanism, an outcome of the Kyoto Protocol proposed at the United Nations Framework Convention on Climate Change. In this paper, a modest attempt has been made to determine the Levelized cost of electricity generation using life cycle costing methodology, which accounts for all the costs over operating lifetime on a range of small hydropower plants and the results are analyzed.

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“…In the age of increasing conventional fuels price and the paradigm of de-carbonization aiming to fight climate changes [1], the technologies that convert energy from renewable sources gain an increasingly justified importance. Of these the hydropower plants occupy a significant segment providing 19% of worldwide electricity [2], while also being one of the most efficient [3].…”

Section: Introductionmentioning

confidence: 99%

Verification of the capacity of lubricating oil cooler system of turbine bearings

Pitchurov

Markov²,

Georgiev³

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The capacity to cool the lubrication oil of hydraulic turbine bearings by submerged water heat exchangers has been verified. Calculations are done for existing heat exchangers and for retrofit ones. Input data from on-site measurements was used, as well as data for the physical constants. The goal of the study was to prove that the new heat exchangers’ efficiency is not less than that of the existing heat exchangers. The method of analysis elaborated on calculation of convective heat transfer coefficient. This was done for both a forced convection and an inhibited convection setup. It was debated that only the forced convection setup was a factor affecting the difference between both designs.

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A review on operation and maintenance of hydropower plants

Cited by 42 publications

References 100 publications

Bipolar q-ROF Hybrid Decision Making Model With Golden Cut for Analyzing the Levelized Cost of Renewable Energy Alternatives

Bipolar q-ROF Hybrid Decision Making Model With Golden Cut for Analyzing the Levelized Cost of Renewable Energy Alternatives

Levelized Cost of Electricity Generation by Small Hydropower Projects under Clean Development Mechanism in India

Verification of the capacity of lubricating oil cooler system of turbine bearings

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