Non-renewable and intermittent renewable energy sources: Friends and foes?

Baranès, Edmond; Jacqmin, Julien; Poudou, Jean-Christophe

doi:10.1016/j.enpol.2017.09.018

Cited by 41 publications

(26 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The shale gas scenarios indicate that if shale gas is abundant at low cost it can play a significant role in South Africa's energy future, thereby confirming for South Africa what has previously been found for other countries (Jacoby et al, 2012;Baranes et al, 2017). However, we find that for shale gas to have a large impact, variable extraction costs have to lie well below 3 USD/GJ.…”

Section: Discussionsupporting

confidence: 85%

South Africa After Paris—Fracking Its Way to the NDCs?

2019

View full text Add to dashboard Cite

South Africa is facing the triple challenge of (a) fuelling economic development and meeting the growing energy demand; (b) increasing the reliability of the electricity system; and (c) ensuring that domestic greenhouse gas emissions peak no later than 2030 to meet its nationally determined contributions (NDC) under the 2015 Paris Agreement. Recently discovered domestic shale gas reserves are being considered as a potential new energy source to provide clean, reliable and cheap electricity while mitigating greenhouse gas emissions relative to the dominant coal sector. In order to determine if shale gas can play a viable role in solving South Africa's energy trilemma, we apply a country-level version of the integrated assessment model MESSAGEix to analyze and quantify the interdependencies between shale gas, the energy system and South Africa's greenhouse gas emissions trajectory. The data and scripts to generate this study will be made available at https://github.com/tum-ewk/message_ix_south_africa following the publication of this manuscript. Our results indicate that shale gas extraction costs must be below 3 USD/GJ for this energy source to reach a significant share in the fuel mix; this is well below current cost estimates. If, however, low-cost shale gas is available, both coal and low-carbon sources are replaced by natural gas. Whether carbon dioxide emissions increase or decrease as a result depends on the stringency of the climate change mitigation policy in place: without carbon pricing, natural gas replaces coal and mitigates harmful emissions; under high carbon prices, power generation from coal is phased out in any case, and natural gas competes with zero-carbon renewables, leading to an increase of emissions compared to a no-shale scenario.

show abstract

Section: Discussionsupporting

confidence: 85%

South Africa After Paris—Fracking Its Way to the NDCs?

2019

View full text Add to dashboard Cite

show abstract

“…2 Dorsey-Palmateer (2014) finds evidence using data from Texas that increased wind generation shifts the fossil fuel generation mix toward natural gas generation, presumably to handle the intermittency of wind generation. Similarly, Baranes, Jacqmin, and Poudou (2015) finds evidence of complementarity in investment decisions that are attributed to intermittency considerations. 3 For example, the change in average capacity factor for operating plants in Figure 3, panel C is relatively small.…”

Section: A Datamentioning

confidence: 94%

The Fall of Coal: Joint Impacts of Fuel Prices and Renewables on Generation and Emissions

Fell

Kaffine

2018

American Economic Journal: Economic Policy

115

View full text Add to dashboard Cite

Since 2007, US coal-fired electricity generation has declined by a stunning 25 percent. Detailed daily unit-level data is used to examine the joint impact of natural gas prices and wind generation on coal-fired generation and emissions, with a focus on the interaction between gas prices and wind. This interaction is found to be significant. Marginal responses of coal-fired generation to natural gas prices (wind) in 2013 were larger, sometimes much larger, than the counterfactual with 2008 wind generation (gas prices). Additionally, these factors jointly account for the vast majority of the observed decline in generation and emissions. (JEL L94, L95, Q35, Q38, Q42, Q53)

show abstract

“…Because, natural gas mixes perfectly with air, it is easy to ignite, provides clean combustion and gives high heat. The thermal efficiency of natural gas engines is higher than that of gasoline engines due to these engines have a higher compression ratio than gasoline engines [28][29][30][31][32][33][34][35]. Unlike gasoline and diesel engines, natural gas-powered internal combustion engines do not require fuel enrichment in cold start, and exhaust emissions are not affected by low temperatures.…”

Section: Figurementioning

confidence: 99%

“…Nowadays, cars with natural gas engines have a range of more than 300 miles with a single filling. Also, natural gas is not a renewable energy source, like other fossil fuels [35][36][37].…”

Section: Figurementioning

confidence: 99%

Alternative Fuels for Internal Combustion Engines

İlhak¹,

Tangöz²,

Akansu³

et al. 2019

The Future of Internal Combustion Engines

View full text Add to dashboard Cite

Researchers have studied on alternative fuels that can be used with gasoline and diesel fuels. Alternative fuels such as hydrogen, acetylene, natural gas, ethanol and biofuels also uses in internal combustion engines. Hydrogen in the gas phase is about 14 times lighter than the air. Moreover, it is the cleanest fuel in the world. On the other hand because of its high ignition limit (4-75%), low ignition energy, needs special design to use as pure hydrogen in internal combustion engines. It is proved that hydrogen improves the combustion, emissions and performance, when is added as 20% to fuels. Natural gas is generally consisting of methane (85-96%) and it can be used in both petrol and diesel engines. Ethanol can be used as pure fuel or mixed with different fuels in internal combustion engines. In this section, the effects of natural gas, hydrogen, natural gas + hydrogen (HCNG), ethanol, ethanol + gasoline, ethanol + hydrogen, acetylene, acetylene + gasoline mixtures on engine performance and emissions have been examined.

show abstract

Non-renewable and intermittent renewable energy sources: Friends and foes?

Cited by 41 publications

References 20 publications

South Africa After Paris—Fracking Its Way to the NDCs?

South Africa After Paris—Fracking Its Way to the NDCs?

The Fall of Coal: Joint Impacts of Fuel Prices and Renewables on Generation and Emissions

Alternative Fuels for Internal Combustion Engines

Contact Info

Product

Resources

About