Plummeting costs of renewables - Are energy scenarios lagging?

Xiao, Mengzhu; Junne, Tobias; Haas, Jannik; Klein, Martin

doi:10.1016/j.esr.2021.100636

Cited by 75 publications

(60 citation statements)

References 44 publications

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“…From a power-system perspective, many large-scale simulations for China have projected the solar PV capacity shares in the future ( 22 – 24 ). However, the role of solar PV in future energy systems is often underestimated with high capital cost assumptions, which did not fully reflect the recent cost decline trend of the solar PV ( 25 – 27 ). The stepwise deployment of large-scale solar capacity ( 23 , 28 , 29 ) requires in-depth research of the spatiotemporal characteristics of solar potentials from technical and economic perspectives.…”

mentioning

confidence: 99%

Combined solar power and storage as cost-competitive and grid-compatible supply for China’s future carbon-neutral electricity system

Chen

Nielsen

et al. 2021

Proc. Natl. Acad. Sci. U.S.A.

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As the world’s largest CO2 emitter, China’s ability to decarbonize its energy system strongly affects the prospect of achieving the 1.5 °C limit in global, average surface-temperature rise. Understanding technically feasible, cost-competitive, and grid-compatible solar photovoltaic (PV) power potentials spatiotemporally is critical for China’s future energy pathway. This study develops an integrated model to evaluate the spatiotemporal evolution of the technology-economic-grid PV potentials in China during 2020 to 2060 under the assumption of continued cost degression in line with the trends of the past decade. The model considers the spatialized technical constraints, up-to-date economic parameters, and dynamic hourly interactions with the power grid. In contrast to the PV production of 0.26 PWh in 2020, results suggest that China’s technical potential will increase from 99.2 PWh in 2020 to 146.1 PWh in 2060 along with technical advances, and the national average power price could decrease from 4.9 to 0.4 US cents/kWh during the same period. About 78.6% (79.7 PWh) of China’s technical potential will realize price parity to coal-fired power in 2021, with price parity achieved nationwide by 2023. The cost advantage of solar PV allows for coupling with storage to generate cost-competitive and grid-compatible electricity. The combined systems potentially could supply 7.2 PWh of grid-compatible electricity in 2060 to meet 43.2% of the country’s electricity demand at a price below 2.5 US cents/kWh. The findings highlight a crucial energy transition point, not only for China but for other countries, at which combined solar power and storage systems become a cheaper alternative to coal-fired electricity and a more grid-compatible option.

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mentioning

confidence: 99%

Combined solar power and storage as cost-competitive and grid-compatible supply for China’s future carbon-neutral electricity system

Chen

Nielsen

et al. 2021

Proc. Natl. Acad. Sci. U.S.A.

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“…The role of solar PV in the low-cost and fast transition of an energy system has been strongly underestimated, not only in the scientific literature but also by most major institutions (10)(11)(12). Lu et al (3) find a solar PV share of 43.2% in the power supply of China in 2060, which is one of the highest values ever projected.…”

Section: Role Of Low-cost Solar Pv For China India and Worldwidementioning

confidence: 99%

Section: Role Of Low-cost Solar Pv For China India and Worldwidementioning

confidence: 99%

Low-cost solar power enables a sustainable energy industry system

Breyer

2021

Proc. Natl. Acad. Sci. U.S.A.

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“…Its outputs are current I p and voltage V p which depend on the power level of the load and input variables T a and E s . Module 2 represents the DC/DC push pull converter, its output voltage is linked to photovoltaic generator voltage by equation (2) 20) below written in the stationary Concordia's reference frame. When they appear, Concordia's voltage and current components are noted with small characters.…”

Section: Control Structure In Dynamic Regime It Is Important Tomentioning

confidence: 99%

“…is favours and encourages their integration in the AC grid. Among these sources, photovoltaic solar energy offers a very promising alternative [1][2][3][4][5]. It is experiencing a wide development, favoured by the awareness of governments and other organizations seriously calling to preserve the environment.…”

Section: Introductionmentioning

confidence: 99%

A Study of a DC/AC Conversion Structure for Photovoltaic System Connected to the Grid with Active and Reactive Power Control

Brahmi

Dhifaoui

2021

Complexity

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DC/AC conversion of photovoltaic energy is in great demand for AC applications; the supply of electrical machines and transfer energy to the distribution network is a typical case. This work is realized in this context and presents a new structure for the transfer of photovoltaic energy to the electricity grid. This structure is based on a push-pull converter connected to a three-phase DC/AC inverter. In particular, a great interest is focused on the steady operating conditions of energy transfer. The study also develops the limits and the feasibility of the PV energy transfer to the grid of the proposed structure. Injecting photovoltaic energy into the grid with maximum active power and zero reactive power is also considered for the dynamic regime. Support simulations are carried out to validate the proposed control strategy.

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Plummeting costs of renewables - Are energy scenarios lagging?

Cited by 75 publications

References 44 publications

Combined solar power and storage as cost-competitive and grid-compatible supply for China’s future carbon-neutral electricity system

Combined solar power and storage as cost-competitive and grid-compatible supply for China’s future carbon-neutral electricity system

Low-cost solar power enables a sustainable energy industry system

A Study of a DC/AC Conversion Structure for Photovoltaic System Connected to the Grid with Active and Reactive Power Control

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