Energy return on investment (EROI) of mini-hydro and solar PV systems designed for a mini-grid

Kittner, Noah; Gheewala, Shabbir H.; Kammen, Daniel M.

doi:10.1016/j.renene.2016.07.023

Cited by 54 publications

(27 citation statements)

References 26 publications

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“…For instance, if scientists increase battery energy densities by 20% through extensive R&D in materials science, yet continue to use materials and production lines at their current cost, the price per kWh of storage could drop by 16.7% before increasing any production volumes. This is also exhibited through advances in net energy performance (characteristics including cycle life and energy capacity) measured by energy stored on energy invested 20 .…”

Section: Modelling Economies Of Scale and Innovationmentioning

confidence: 99%

Energy storage deployment and innovation for the clean energy transition

2017

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The clean energy transition requires a co-evolution of innovation, investment, and deployment strategies for emerging energy storage technologies. A deeply decarbonized energy system research platform needs materials science advances in battery technology to overcome the intermittency challenges of wind and solar electricity. Simultaneously, policies designed to build market growth and innovation in battery storage may complement cost reductions across a suite of clean energy technologies. Further integration of R&D and deployment of new storage technologies paves a clear route toward cost-e ective low-carbon electricity. Here we analyse deployment and innovation using a two-factor model that integrates the value of investment in materials innovation and technology deployment over time from an empirical dataset covering battery storage technology. Complementary advances in battery storage are of utmost importance to decarbonization alongside improvements in renewable electricity sources. We find and chart a viable path to dispatchable US$1 W −1 solar with US$100 kWh −1 battery storage that enables combinations of solar, wind, and storage to compete directly with fossil-based electricity options.

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Section: Modelling Economies Of Scale and Innovationmentioning

confidence: 99%

Energy storage deployment and innovation for the clean energy transition

2017

Self Cite

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“…Faced with a gas shortage, it has been necessary for societies to find sound alternative energy resources. EROI analysis is useful for determining whether developing a new source of energy is feasible from a net energy perspective (Kittner et al 2016). Figure 8 shows a comparison of the EROIs of several gas sources in China, including CSG, conventional oil and gas, imported gas, shale gas, tight gas, and coal-based synthetic natural gas (SNG) in China.…”

Section: Discussionmentioning

confidence: 99%

Energy return on investment, energy payback time, and greenhouse gas emissions of coal seam gas (CSG) production in China: a case of the Fanzhuang CSG project

Kong

Dong

et al. 2017

Pet. Sci.

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The studies and development of coal seam gas (CSG) have been conducted for more than 30 years in China, but few of China's CSG projects have achieved large-scale commercial success; faced with the boom of shale gas, some investors are beginning to lose patience and confidence in CSG. China currently faces the following question: Should the government continue to vigorously support the development of the CSG industry? To provide a reference for policy makers and investors, this paper calculates the EROI stnd [a standardized energy return on investment (EROI) method], EROI ide (the maximum theoretical EROI), EROI 3,i (EROI considering the energy investment in transport), and EROI 3,1?e (EROI with environmental inputs) of a single vertical CSG well in the Fanzhuang CSG project in the Qinshui Basin. The energy payback time (EPT) and the greenhouse gas (GHG) emissions of the CSG systems are also calculated. The results show that over a 15-year lifetime, EROI stnd , EROI ide , EROI 3,1 , and EROI 3,1?e are expected to deliver EROIs of approximately 11:1, 20:1, 7:1, and 6:1, respectively. The EPT within different boundaries is no more than 2 years, and the life-cycle GHG emissions are approximately 18.8 million kg CO 2 equivalent. The relatively high EROI and short EPT indicate that the government should take more positive measures to promote the development of the CSG industry.

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“…PV generation costs and emissions are the topics of most concern. In addition, other researchers and experts have also explored and assessed PV projects from the grid, storage and consumption sides [27][28][29][30][31][32]. The coordination development relations of multiple participants have mainly been considered and evaluated when PV projects were connected to the power grid and storage system.…”

Section: Literature Reviewsmentioning

confidence: 99%

Core Abilities Evaluation Index System Exploration and Empirical Study on Distributed PV-Generation Projects

Nie

et al. 2017

Energies

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Abstract:In line with the constraints of environmental problems and economic development, large-scale renewable-generation projects have been planned and constructed in recent years. In order to achieve sustainable power development and improve the power supply structure, China's government has focused on distributed photovoltaic (PV) generation projects due to their advantages of clean emission and local consumption. However, their unstable output power still brings a series of problems concerning reliability, investment income, and available substitution proportion to traditional power, and so on. Therefore, it is imperative to understand the competitive development abilities of distributed PV generation projects and measure them effectively. First, through various investigation methods such as literature reviews, feasibility report analysis and expert interviews, the factors that influence the core abilities of distributed PV-generation projects were explored based on the micro-grid structure. Then, with the indexed exploration results, the factors were classified into 6 dimensions, i.e., investment and earning ability, production and operation ability, power-grid coordination ability, energy-conservation and emission-reduction ability, sustainable development ability, and society-serving ability. Meanwhile, an evaluation index system for core abilities of distributed PV-generation project was constructed using all quantitative indicators. Third, for examining the availability of the evaluation index system, combination weighting and techniques for order preference by similarity to an ideal solution (TOPSIS) methods were adopted to assess the practical distributed PV-generation projects. The case study results showed that installed capacity, local economy development, and grid-connected power quantity will influence the core abilities of distributed PV-generation project, obviously. The conclusions of the evaluation analysis on core abilities can provide useful references to operate and manage distributed PV-generation projects and promote their sustainable and health advantages. The proposed evaluation index system can also be used to assess power-generation projects in other types of energy, such as wind power and hydropower.

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Energy return on investment (EROI) of mini-hydro and solar PV systems designed for a mini-grid

Cited by 54 publications

References 26 publications

Energy storage deployment and innovation for the clean energy transition

Energy storage deployment and innovation for the clean energy transition

Energy return on investment, energy payback time, and greenhouse gas emissions of coal seam gas (CSG) production in China: a case of the Fanzhuang CSG project

Core Abilities Evaluation Index System Exploration and Empirical Study on Distributed PV-Generation Projects

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