Impacts of renewable electricity standard and Renewable Energy Certificates on renewable energy investments and carbon emissions

2022 ◽  
Vol 306 ◽  
pp. 114495
Author(s):  
Qingyuan Zhu ◽  
Xifan Chen ◽  
Malin Song ◽  
Xingchen Li ◽  
Zhiyang Shen
Keyword(s):  
Renewable Energy ◽  
Carbon Emissions ◽  
Renewable Electricity

scholarly journals Renewable Energy Use in Australian Public Hospitals

2021 ◽  
Author(s):  
Hayden Burch ◽  
Matthew Anstey ◽  
Forbes McGain
Keyword(s):  
Renewable Energy ◽  
Natural Gas ◽  
Carbon Footprint ◽  
Carbon Emissions ◽  
Public Hospital ◽  
Energy Use ◽  
Public Hospitals ◽  
Total Carbon ◽  
Renewable Electricity ◽  
Direct Energy

Abstract Objective Are Australian hospitals moving towards renewable energy sources for their electricity, and aligning energy choices with core business, i.e. protecting and promoting health? Design Cross-sectional analysis of Australian state/territory amalgamated energy data Setting Healthcare’s carbon footprint is approximately 7% of Australia’s total carbon footprint. It is unknown if Australian public hospitals are decoupling energy needs from carbon emissions over and above state/territory based renewable energy targets. Participants 693 Australian public hospitals direct energy usage (renewable & non-renewable electricity [produced/purchased], natural gas, liquefied petroleum gas, for the three consecutive years from 2016/17 to 2018/19. Main outcome measures All direct energy produced/purchased and consumed (converted to kilowatt-hours). Results Australian public hospitals consumed 4,122 gigawatt-hours of energy in 2018/19. Electricity use was 2,504 (61%) GWh, natural gas 1,436 (35%) GWh and renewable energy 94 GWh (2.3%). Victoria and New South Wales combined consumed 2,494/ 4,122 GWh (60%) of total Australian public healthcare energy but each produced/purchased less than 1% renewable electricity. For Queensland, a Health GreenPower purchase comprised the majority (71/94 GWh; 76%) of renewable energy production/purchase by all Australian public hospitals. By comparison, individual tertiary education institutions produced/purchased more renewable energy than all Australian public hospitals combined (University of NSW 124 GWh/yr, Swinburne University 90 GWh/yr, 2018/19). Conclusions Australian public hospitals obtain approximately 2.3% of total energy from renewable electricity. One third of hospital energy use stems from fossil gas use. The Australian public hospital system has no documented plans to transition to renewable energy, contrasting with the University sector. The known Australian healthcare contributes approximately 7% of Australia’s total carbon footprint with public hospital energy use a major source of healthcare associated carbon emissions. The new Australian public hospitals consumed 4122 gigawatt-hours in 2018/2019. Approximately 2.3% (94/4,122 gigawatt-hours) of hospital energy was sourced from renewables, beyond state-wide renewable electricity penetration. The implications Australian public hospitals are large emitters of greenhouse gases. Hospital fossil fuel energy use and subsequent pollution continues unabated. Such increasing pollution is at odds with the ethos ‘first do no harm’.

Renewable energy and energy storage to offset diesel generators at expeditionary contingency bases

2021 ◽  
pp. 154851292110513
Author(s):  
Scott M Katalenich ◽  
Mark Z Jacobson
Keyword(s):  
Air Pollution ◽  
Renewable Energy ◽  
Energy Storage ◽  
Carbon Emissions ◽  
Meteorological Data ◽  
Vertical Axis ◽  
Humanitarian Assistance ◽  
Diesel Generators ◽  
Combat Casualties ◽  
The Military

Expeditionary contingency bases (non-permanent, rapidly built, and often remote outposts) for military and non-military applications represent a unique opportunity for renewable energy. Conventional applications rely upon diesel generators to provide electricity. However, the potential exists for renewable energy, improved efficiency, and energy storage to largely offset the diesel consumed by generators. This paper introduces a new methodology for planners to incorporate meteorological data for any location worldwide into a planning tool in order to minimize air pollution and carbon emissions while simultaneously improving the energy security and energy resilience of contingency bases. Benefits of the model apply not just to the military, but also to any organization building an expeditionary base—whether for humanitarian assistance, disaster relief, scientific research, or remote community development. Modeling results demonstrate that contingency bases using energy efficient buildings with batteries, rooftop solar photovoltaics, and vertical axis wind turbines can decrease annual generator diesel consumption by upward of 75% in all major climate zones worldwide, while simultaneously reducing air pollution, carbon emissions, and the risk of combat casualties from resupply missions.

scholarly journals Sizing Hybrid Energy Storage Systems for Distributed Power Systems under Multi-Time Scales

2018 ◽  
Vol 8 (9) ◽  
pp. 1453 ◽  
Author(s):  
Huanan Liu ◽  
Dezhi Li ◽  
Yuting Liu ◽  
Mingyu Dong ◽  
Xiangnan Liu ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Power Systems ◽  
Power System ◽  
Time Scales ◽  
Carbon Emissions ◽  
Storage Capacity ◽  
Rapid Development ◽  
Super Capacitor ◽  
Energy Storage Capacity

With the rapid development of industry, more fossil energy is consumed to generate electricity, which increases carbon emissions and aggravates the burden of environmental protection. To reduce carbon emissions, traditional centralized power generation networks are transforming into distributed renewable generation systems. However, the deployment of distributed generation systems can affect power system economy and stability. In this paper, under different time scales, system economy, stability, carbon emissions, and renewable energy fluctuation are comprehensively considered to optimize battery and super-capacitor installation capacity for an off-grid power system. After that, based on the genetic algorithm, this paper shows the optimal system operation strategy under the condition of the theoretical best energy storage capacity. Finally, the theoretical best capacity is tested under different renewable energy volatility rates. The simulation results show that by properly sizing the storage system’s capacity, although the average daily costs of the system can increase by 10%, the system’s carbon emissions also reduce by 42%. Additionally, the system peak valley gap reduces by 23.3%, and the renewable energy output’s fluctuation range and system loss of load probability are successfully limited in an allowable range. Lastly, it has less influence on the theoretical best energy storage capacity if the renewable energy volatility rate can be limited to within 10%.

scholarly journals Natural and economic effects of renewable energy sources in the developing countries: a case of Azerbaijan

2021 ◽  
Vol 250 ◽  
pp. 03007
Author(s):  
Zhala Rzayeva ◽  
Aysel Guliyeva ◽  
Arzu Miriyeva
Keyword(s):  
Developing Countries ◽  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Economic Effects ◽  
Energy Sources ◽  
Gas Oil ◽  
Renewable Electricity ◽  
Clear Cut ◽  
Toxic Gases ◽  
Near Future

This paper focuses in the natural and economic effects of renewable energy sources in the developing countries using a case of Azerbaijan. Traditional fuel supplies dependent on gas, oil, and coal are highly useful for the development of a country’s economy. However, certain detrimental effects of these commodities on the environment have limited us to use these resources under clear cut-off points. As a result, we were able to turn our intuition into renewable energy sources. By using renewable energy sources, social, natural, and financial challenges can be ignored because these sources are considered harmless to the atmosphere, as there are little or virtually no fumes discharged, and toxic gases such as carbon dioxide, carbon monoxide, and sulfur dioxide. Renewable electricity would be a major advantage for power generation in the near future so we will reuse these assets to generate useful electricity. The paper discusses these and other issues with the implementation of renewable energy and assess the potentials of Azerbaijan in adapting this type of energy in the future.

scholarly journals Does Globalization Moderate the Effect of Economic Complexity on CO2 Emissions? Evidence From the Top 10 Energy Transition Economies

2021 ◽  
Vol 9 ◽  
Author(s):  
Kai He ◽  
Muhammad Ramzan ◽  
Abraham Ayobamiji Awosusi ◽  
Zahoor Ahmed ◽  
Mahmood Ahmad ◽  
...  
Keyword(s):  
Economic Growth ◽  
Renewable Energy ◽  
Transition Economies ◽  
Carbon Emissions ◽  
Environmental Sustainability ◽  
Energy Transition ◽  
Cross Sectional ◽  
Economic Complexity ◽  
Long Run ◽  
The Government

The association between economic complexity (sophisticated economic structure) and carbon emissions has major implications for environmental sustainability. In addition, globalization can be an important tool for attaining environmental sustainability and it may also moderate the association between economic complexity and carbon emissions. Thus, this research examines the effects of economic complexity, economic growth, renewable energy, and globalization on CO2 emissions in the top 10 energy transition economies where renewable energy and globalization have greatly increased over the last 3 decades. Furthermore, this study also evaluates the joint effect of globalization and economic complexity on carbon emissions. Keeping in view the presence of slope heterogeneity and cross-sectional dependence in the data, this research utilized second-generation unit root tests (CIPS and CADF), Westerlund cointegration approach, and CS-ARDL and CCEMG long-run estimators over the period of 1990–2018. The results affirmed the presence of cointegration among the considered variable. Long-run findings revealed that globalization, renewable energy, and economic complexity decrease carbon emissions. Conversely, economic growth increases carbon emissions. Moreover, the joint impact of economic complexity and globalization stimulates environmental sustainability. Based on these findings, the government of these groups of economies should continue to expand the usage of renewable energy. They should also promote interaction with the rest of the world by adopting the policy of opening up.

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