scholarly journals Mixed strategies for energy conservation and alternative energy utilization (solar) in buildings. Final report. Volume III. Appendixes. [10 appendices]

1977 ◽  
Author(s):  
Keyword(s):  
Energy Conservation ◽  
Alternative Energy ◽  
Energy Utilization ◽  
Final Report ◽  
Mixed Strategies

Does a carbon emissions trading scheme spur urban green innovation? Evidence from a quasi-natural experiment in China

2021 ◽  
pp. 0958305X2110153
Author(s):  
Chao Li ◽  
Xiangyou Li ◽  
Deyong Song ◽  
Meng Tian
Keyword(s):  
Energy Conservation ◽  
Alternative Energy ◽  
Positive Impact ◽  
Emission Trading ◽  
Green Innovation ◽  
Urban Green ◽  
Carbon Emissions Trading ◽  
The Government ◽  
Trading Scheme ◽  
The Impact

Based on the panel data of 277 cities between 2003 and 2017 and a unique city-level dataset of green patent applications, this study employs the difference-in-differences (DID) method to evaluate the effect of China’s carbon emission trading scheme (ETS) pilots on urban green innovation. The findings indicate that China’s ETS pilots have a positive impact on urban green innovation, and that impact is more significant for municipalities than for prefecture-level cities. Furthermore, the impact on different categories of urban green innovation is heterogeneous. More specifically, China’s ETS pilots have significantly spurred urban green innovation that is closely related to energy conservation and emission reduction, including alternative energy production, transportation, energy conservation and so forth. Moreover, the facilitating effect of China’s ETS pilots on urban green innovation suffers from a lagging effect, which began to show a significant positive effect in 2016. Overall, this paper identifies the effect of China’s ETS pilots on urban green innovation, and suggests that the government should consider the heterogeneity of urban green innovation when designing national ETS policies.

scholarly journals A Dual-Objective Substation Energy Consumption Optimization Problem in Subway Systems

Energies ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 1876 ◽  
Author(s):  
Hongjie Liu ◽  
Tao Tang ◽  
Jidong Lv ◽  
Ming Chai
Keyword(s):  
Energy Consumption ◽  
Energy Storage ◽  
Energy Conservation ◽  
Optimization Problem ◽  
Optimization Problems ◽  
Energy Utilization ◽  
Total Size ◽  
Energy Consumption Optimization ◽  
Regenerative Energy ◽  
Timetable Optimization

Maximizing regenerative energy utilization is an important way to reduce substation energy consumption in subway systems. Timetable optimization and energy storage systems are two main ways to improve improve regenerative energy utilization, but they were studied separately in the past. To further improve energy conservation while maintaining a low cost, this paper presents a strategy to improve regenerative energy utilization by an integration of them, which determines the capacity of each Wayside Energy Storage System (WESS) and correspondingly optimizes the timetable at the same time. We first propose a dual-objective optimization problem to simultaneously minimize substation energy consumption and the total cost of WESS. Then, a mathematical model is formulated with the decision variables as the configuration of WESS and timetable. Afterwards, we design an ϵ -constraint method to transform the dual-objective optimization problem into several single-objective optimization problems, and accordingly design an improved artificial bee colony algorithm to solve them sequentially. Finally, numerical examples based on the actual data from a subway system in China are conducted to show the effectiveness of the proposed method. Experimental results indicate that substation energy consumption is effectively reduced by using WESS together with a correspondingly optimized timetable. Note that substation energy consumption becomes lower when the total size of WESS is larger, and timetable optimization further reduces it. A set of Pareto optimal solutions is obtained for the experimental subway line—based on which, decision makers can make a sensible trade-off between energy conservation and WESS investment accordingly to their preferences.

City Energy Saving Assessment Based on Fuzzy Hierarchical Analysis - A Case Study of Wuhan City in China

2012 ◽  
Vol 485 ◽  
pp. 425-428
Author(s):  
Jun Liang Wang ◽  
Qing Ying Zhang ◽  
Li Yin
Keyword(s):  
Energy Conservation ◽  
Social Development ◽  
Energy Saving ◽  
Emission Reduction ◽  
Energy Utilization ◽  
Evaluation Index ◽  
Hierarchical Analysis ◽  
Wuhan City

Energy conservation has become an important topic of social development. The assessment of the energy utilization results is meaningful, which is the springboard of the paper. Taking Wuhan city in China as an example, lots of in-depth investigations are accomplished, hierarchical analysis and fuzzy computation are made, so as to build a set of evaluation index to estimate the actuality of energy saving and emission reduction in Wuhan. The result is also available to appraise the energy conservation in other cities.

Wind Potential Assessment for the Utilization from Wind Energy in the Household Level: A Case Study of Nakhonratchasima Thailand

2016 ◽  
Vol 835 ◽  
pp. 749-752
Author(s):  
Yuttachai Keawsuntia
Keyword(s):  
Wind Speed ◽  
Wind Energy ◽  
Alternative Energy ◽  
Energy Resource ◽  
Energy Utilization ◽  
Distribution Method ◽  
Household Level ◽  
Wind Speed Data ◽  
Wind Potential

Wind energy is an important alternative energy resource because of it clean, does not cause pollution and it can be used as replacement of a fossil fuel energy. Utilization of the wind energy, the wind speed data has to be analyzed to make sure before use it. In this article is to present the wind speed data analysis by using Weibull distribution method. Wind speed data from the meteorological station at Pakchong district, Nakhonratchasima province, Thailand was used as the case study. The results show that this area has wind speed about 2.5 to 3.5 m/s. The average wind power density was 17.513 W/m2 and the total wind energy was 153.9819 kW·hr/m2 per year. This wind potential of this area can be used for water pumping and electricity generating for use in a household.

Research on the Influence of Wind Energy on New Energy Utilization Coefficient of EEDI

2013 ◽  
Vol 744 ◽  
pp. 561-565 ◽  
Author(s):  
Cai Ling Li ◽  
Song Zhou ◽  
Ye Han
Keyword(s):  
Energy Efficiency ◽  
Wind Energy ◽  
Alternative Energy ◽  
Energy Utilization ◽  
Calculation Formula ◽  
Energy Technology ◽  
Utilization Coefficient ◽  
New Energy ◽  
Energy Efficiency Design Index ◽  
Great Harm

Currently, the emissions discharged by ships are becoming more and more serious, which brings a great harm to the atmospheric and marine environment. In order to solve the emissions, especially of CO2 emission, the new ship energy efficiency design index (EEDI) has been introduced to reduce it. According to EEDI calculation formula, the use of new energy technology can reduce marine EEDI. Nowadays, wind energy as a clean and renewable energy, is an ideal alternative energy to be applied on ships. But until now, there is still no definite calculation formula and value regulation to parameters involved in the application of new energy on ships, including new energy utilization coefficient.

Sign in / Sign up

Export Citation Format

Share Document