Environmental impact of renewable energy source based electrical power plants: Solar, wind, hydroelectric, biomass, geothermal, tidal, ocean, and osmotic

Rahman, Abidur; Farrok, Omar; Haque, M. Mejbaul

doi:10.1016/j.rser.2022.112279

Cited by 461 publications

(232 citation statements)

References 80 publications

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“…The effluent of OTEC has the potential to yield nutritional supplements that can be used in aquaculture, which is useful in small island nations as additional agricultural sources, improving the overall economic viability (Fujita et al, 2012;Vera et al, 2020). However, deep seawater is richer in nutrients than surface water, and effluent could cause eutrophication of surface waters, unless released at a depth of at least 70 m to reduce this potential (Fujita et al, 2012;Rahman et al, 2022). Nearshore habitats commonly found within Bahamian coastal zones, including coral reefs and seagrasses, are sensitive to nutrients and turbid waters (Rogers, 1990;Fujita et al, 2012), and therefore caution needs to be taken with the location of discharge of the effluent.…”

Section: Discussionmentioning

confidence: 99%

Interventions and solutions for water supply on small islands: The case of New Providence, The Bahamas

Welsh

Bowleg

2022

Front. Water

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Small island nations make up more than one-quarter of the countries on earth, yet information on the limitations of the hydrologic cycle in small islands and strategies to address freshwater availability are lacking. Typically, all islands are characterized by their limited supply of freshwater, and their governments commonly rely on large-scale interventions to provide residents with potable water. The island of New Providence in The Bahamas is home to the capital city of Nassau and almost three-quarters of the country's population. New Providence has a long history of hydrologic interventions to supply domestic and industrial water. Historic groundwater sources have been over-extracted to severe levels of salinization, and some groundwater aquifers have not recovered after more than 8 years later. Fresh water was barged in from the larger Andros Island for ~40 years, which ultimately became insufficient to meet demand on New Providence. In addition to an aggressive Non-Revenue-Water (NRW) Program, desalination of ocean water via diesel-operated reverse osmosis plants has served as the primary source of potable water for the island. Present concerns have grown due to its contributions to greenhouse gas emissions. The Bahamas is also investigating alternative mechanisms for providing clean drinking water to the country, with Ocean Thermal Energy Conversion (OTEC) under consideration to co-generate clean energy in addition to drinking water. This article reveals that historic interventions to source drinking water for New Providence Island have proven to be unsustainable and ultimately have threatened the freshwater availability. Current efforts to investigate drinking water provision through OTEC are promising, particularly for the potential co-generation of energy and to promote sustainable development. This solution may be promising for other small islands where development is often challenged by water availability and sustainable energy provision.

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Section: Discussionmentioning

confidence: 99%

Interventions and solutions for water supply on small islands: The case of New Providence, The Bahamas

Welsh

Bowleg

2022

Front. Water

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“…While this study did not account for the other types of externalities, it should be noted that renewables also have negative impacts on the environment. For instance, considering the severity of negative environmental impacts, hydroelectric power plants are found to be the most hazardous among other renewable sources in terms of biodiversity losses, hence, measures should be taken to restore the rivers to the way they were when using fossil fuels come to an end (Rahman et al, 2022). Meanwhile, wind turbine generators demonstrate the least adverse environmental effects compared to others, which makes them the most sustainable renewable energy source (Lee & Chang, 2018;Rahman et al, 2022).…”

Section: Summary Of Findings and Existing Studiesmentioning

confidence: 99%

Decision Support for Investments in Sustainable Energy Sources Under Uncertainties

Batac

Collera

Villanueva³

et al. 2022

Int. J. Renew. Energy Dev.

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Investment in sustainable energy sources is one of the climate mitigation strategies that can significantly reduce greenhouse gas emissions in the energy sector. However, in developing countries, investment is challenged by high capital expenditures and several uncertainties. This paper aims to provide decision support for investment in sustainable energy projects by evaluating the comparative attractiveness of shifting energy sources from fossil fuels to renewables and nuclear. Applying the real options approach (ROA), we calculate the value of the flexibility to postpone the investment decision and identify the optimal timing (described here as the trigger price of coal) for shifting to sustainable energy sources. We consider various uncertainties, such as coal and electricity prices, negative externality of using fossil fuels, and the risk of a nuclear accident, which are modelled using geometric Brownian motion, Poisson process, and Bernoulli probability. Applying the ROA model in the case of the Philippines, results find that investing in sustainable energy is a better option than continuing to use coal for electricity generation. However, contrary to conventional option valuation result that waiting is a better strategy, we found that delaying or postponing the investment decisions may lead to possible opportunity losses. Among the available sustainable energy sources, geothermal is the most attractive with trigger prices of coal equal to USD 49.95/ton, followed by nuclear (USD 58.55/ton), wind (USD 69.48/ton), solar photovoltaic (USD 72.04/ton), and hydropower (USD 111.14/ton). We find that the occurrence of jump (extreme) prices of coal, raising the current feed-in-tariff, and considering negative externalities can decrease the trigger prices, which favor investments in sustainable energies. Moreover, the risk of a nuclear disaster favors investment in renewable energy sources over nuclear due to the huge damage costs once an accident occurs. Results provide bases for policy recommendations toward achieving a more secure and sustainable energy sector for developing countries that are too dependent on imported fossil fuels.

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“…This is as stated in Government Regulation Number 79 of 2014 concerning National Energy Policy which stipulates that national energy sources are encouraged to be utilized in power generation, including renewable energy sources of the type of energy flow and waterfalls, geothermal energy, energy movement and differences sea layer temperature, wind energy, solar energy, biomass and waste; new energy sources in the form of solids and gases; and natural gas, coal. Utilization of potential local primary energy sources is prioritized for electric power, such as new and renewable energy, mine mouth coal, and wellhead gas (Rahman et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Electric Vehicle Policy: The Main Pillar of Indonesia's Future Energy Security

Suraharta¹,

Djajasinga

Wicaksono

et al. 2022

IJSOC

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Indonesia still has a high dependence on fossil energy. This can be seen through how the use of fossil energy still dominates the energy needs in Indonesia. Most of this fossil energy comes from oil sources. However, the increasing use of energy and the reduction in fossil energy reserves has made Indonesia need to use renewable energy. This needs to be done to achieve energy security in Indonesia. This research will be carried out to see how the conceptual framework and policies regarding energy security in transportation in Indonesia through electrical energy can support energy security in Indonesia. This research will be carried out using a literature study approach. According to the findings of this study, there are multiple concepts in energy security, including the availability of existing energy resources that can meet energy demand, existing support in facilities such as distribution, transportation, and production division that can meet energy consumption needs, and the minimal negative impact of energy production and consumption on human health and the surrounding environment.

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Environmental impact of renewable energy source based electrical power plants: Solar, wind, hydroelectric, biomass, geothermal, tidal, ocean, and osmotic

Cited by 461 publications

References 80 publications

Interventions and solutions for water supply on small islands: The case of New Providence, The Bahamas

Interventions and solutions for water supply on small islands: The case of New Providence, The Bahamas

Decision Support for Investments in Sustainable Energy Sources Under Uncertainties

Electric Vehicle Policy: The Main Pillar of Indonesia's Future Energy Security

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