Cash for Coolers: Evaluating a Large-Scale Appliance Replacement Program in Mexico

2014 ◽  
Vol 6 (4) ◽  
pp. 207-238 ◽  
Author(s):  
Lucas W. Davis ◽  
Alan Fuchs ◽  
Paul Gertler
Keyword(s):  
Energy Efficient ◽  
Carbon Dioxide Emissions ◽  
Air Conditioning ◽  
Large Scale ◽  
Energy Use ◽  
Electricity Consumption ◽  
Program Cost ◽  
Air Conditioners ◽  
Household Level ◽  
The Universe

This paper evaluates a large-scale appliance replacement program in Mexico that from 2009 to 2012 helped 1.9 million households replace their old refrigerators and air conditioners with energy-efficient models. Using household-level billing records from  the universe of Mexican residential customers, we find that refrigerator replacement reduces electricity consumption by 8 percent, about one-quarter of what was predicted by ex ante analyses. Moreover, we find that air conditioning replacement actually increases electricity consumption. Overall, we find that the program is an expensive way to reduce externalities from energy use, reducing carbon dioxide emissions at a program cost of over $500 per ton. (JEL L68, L94, O12, O13, Q41, Q54)

scholarly journals Contribution of air conditioning adoption to future energy use under global warming

2015 ◽  
Vol 112 (19) ◽  
pp. 5962-5967 ◽  
Author(s):  
Lucas W. Davis ◽  
Paul J. Gertler
Keyword(s):  
Carbon Dioxide ◽  
Energy Consumption ◽  
Carbon Dioxide Emissions ◽  
Air Conditioning ◽  
Energy Use ◽  
Electricity Consumption ◽  
Future Research ◽  
Low Carbon ◽  
Middle Income ◽  
Global Action

As household incomes rise around the world and global temperatures go up, the use of air conditioning is poised to increase dramatically. Air conditioning growth is expected to be particularly strong in middle-income countries, but direct empirical evidence is scarce. In this paper we use high-quality microdata from Mexico to describe the relationship between temperature, income, and air conditioning. We describe both how electricity consumption increases with temperature given current levels of air conditioning, and how climate and income drive air conditioning adoption decisions. We then combine these estimates with predicted end-of-century temperature changes to forecast future energy consumption. Under conservative assumptions about household income, our model predicts near-universal saturation of air conditioning in all warm areas within just a few decades. Temperature increases contribute to this surge in adoption, but income growth by itself explains most of the increase. What this will mean for electricity consumption and carbon dioxide emissions depends on the pace of technological change. Continued advances in energy efficiency or the development of new cooling technologies could reduce the energy consumption impacts. Similarly, growth in low-carbon electricity generation could mitigate the increases in carbon dioxide emissions. However, the paper illustrates the enormous potential impacts in this sector, highlighting the importance of future research on adaptation and underscoring the urgent need for global action on climate change.

scholarly journals PENGATURAN ULANG ZONING RUANG UNTUK MENGETAHUI EFISIENSI BEBAN AC DAN PENCAHAYAAN PADA SUMMARECON OFFICE, JAKARTA

2018 ◽  
Vol 1 (2) ◽  
pp. 355
Author(s):  
TANTRI OKTAVIA
Keyword(s):  
Energy Consumption ◽  
Interior Design ◽  
Energy Efficient ◽  
Air Conditioning ◽  
Energy Use ◽  
Electricity Consumption ◽  
Important Thing ◽  
Office Design ◽  
High Rise ◽  
Heat Value

People always work with using energy especially electricity. Global warming gives big impact to electricity consumption. Lighting and air conditioning is important thing to improve a human comfort inside the building. Architecture and interior design give impact to building’s energy consumption. Many high rise rent office are build at the city. High rise office is a branding for the company to look good. Not all building will use for the company, but share with other. The Office design must be good, comfort and good service and cheap for the rent. Energy consumption for operational cost is important thing to decrease rent cost. The solution to make energy efficient is make new design for interior. Air conditioning and lighting is a big part in energy comsumption. Designer must calculate the energy use to decrease an energy comsumption from AC and lighting. This research will collect all heat data from interior and from outdoor penetration. This research use Sun Path Method to know when the buildings have a biggest heat from sunlight everyday. The use of OTTV method (Overall Thermal Tranfer Value) to check a heat value transfer from the façade material. The result will help the designer to make zoning and will make a building efficient  Keyword: cooling load; energy efficient; lighting load; rental office; zoning

Scenarios for examination of highly distributed power systems

2008 ◽  
Vol 222 (7) ◽  
pp. 643-655 ◽  
Author(s):  
C N Jardine ◽  
G W Ault
Keyword(s):  
Power Systems ◽  
Carbon Dioxide Emissions ◽  
Power Flow ◽  
Large Scale ◽  
Energy Use ◽  
Housing Stock ◽  
Distributed Power ◽  
Distributed Power Systems ◽  
Network Operation ◽  
The Uk

A set of three scenarios has been created in order to examine the incorporation of extensive penetrations of micro-generators into electricity networks (termed ‘highly distributed power systems’). The scenarios have been created as a synthesis of the Future Network Technologies scenarios and the UK domestic carbon model, and yields energy use and carbon dioxide emissions of the UK housing stock from inputs of household numbers, house type, thermal efficiency, appliance efficiency, as well as the number and efficiency of micro-generators used. The centralized supply mix also varies between scenarios and features extensive penetrations of large-scale renewables. The scenarios illustrate the scale of change required to reduce CO2 emissions by 60 per cent by 2050, which has substantial impacts for electricity network operation. Moving from a centralized system to the one where one-third of electricity comes from distributed sources poses significant challenges including: reverse power flow on networks, load balancing, storage requirements, phase unbalance, harmonics, and ancillary services.

scholarly journals A survey on software methods to improve the energy efficiency of parallel computing

2016 ◽  
Vol 31 (6) ◽  
pp. 517-549 ◽  
Author(s):  
Chao Jin ◽  
Bronis R de Supinski ◽  
David Abramson ◽  
Heidi Poxon ◽  
Luiz DeRose ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Parallel Computing ◽  
Energy Efficient ◽  
Large Scale ◽  
Energy Use ◽  
Power Saving ◽  
Computing Methods ◽  
Power Budget ◽  
Load Imbalance ◽  
Mixed Precision

Energy consumption is one of the top challenges for achieving the next generation of supercomputing. Codesign of hardware and software is critical for improving energy efficiency (EE) for future large-scale systems. Many architectural power-saving techniques have been developed, and most hardware components are approaching physical limits. Accordingly, parallel computing software, including both applications and systems, should exploit power-saving hardware innovations and manage efficient energy use. In addition, new power-aware parallel computing methods are essential to decrease energy usage further. This article surveys software-based methods that aim to improve EE for parallel computing. It reviews the methods that exploit the characteristics of parallel scientific applications, including load imbalance and mixed precision of floating-point (FP) calculations, to improve EE. In addition, this article summarizes widely used methods to improve power usage at different granularities, such as the whole system and per application. In particular, it describes the most important techniques to measure and to achieve energy-efficient usage of various parallel computing facilities, including processors, memories, and networks. Overall, this article reviews the state-of-the-art of energy-efficient methods for parallel computing to motivate researchers to achieve optimal parallel computing under a power budget constraint.

scholarly journals Statistical analysis of air-conditioning and total load diversity in typical residential buildings

2021 ◽  
Vol 10 (1) ◽  
pp. 1-9
Author(s):  
Naja Aqilah Hisham ◽  
Sheikh Ahmad Zaki Shaikh Salim ◽  
Aya Hagishima ◽  
Fitri Yakub ◽  
Hafizah Farhah Saipan Saipol
Keyword(s):  
Air Conditioning ◽  
Residential Buildings ◽  
Electricity Consumption ◽  
Outdoor Temperature ◽  
Night Time ◽  
Total Load ◽  
Air Conditioners ◽  
Electrical Grid ◽  
Usage Patterns ◽  
The Stability

Electricity consumption by air-conditioners in residential buildings significantly affects the electrical grid. The stability of the grid can be improved by a precise prediction of air-conditioning (AC) variations. Therefore, more information about the electricity usage patterns specifically on AC load is important. This paper aims to determine the consumption patterns of AC and total load through a field measurement of 20 dwellings located in Kuala Lumpur and Selangor. Next, correlation and clustering are employed to identify the relationship between outdoor temperature and AC electricity consumption. The results revealed 75% of the occupants use the AC almost every day for about five to six hours per day at the rates of 0.93 kWh/day during day time and 3.43 kWh/day during night time. The correlation coefficient between the total daily AC consumption and the mean daily outdoor temperature ranged from -0.1 to 0.48. The variation of electricity consumption with time shows that AC electricity consumption increases with the increase of usage time. Lastly, the clustering process of AC usage pattern based on outdoor temperature displayed the uncommon behaviour from dwellings whereby high AC electricity consumption was recorded at low outdoor temperature.

scholarly journals Solar hybrid air conditioning system to use in Iraq to save energy

2019 ◽  
Vol 124 ◽  
pp. 01024
Author(s):  
Y. V. Vankov ◽  
A. K. Al–Okbi ◽  
M. H. Hasanen
Keyword(s):  
Air Conditioning ◽  
Power Plants ◽  
Cooling System ◽  
Renewable Energy Sources ◽  
Electricity Consumption ◽  
Air Conditioners ◽  
Reduce Electricity Consumption ◽  
Central Air Conditioning ◽  
Save Energy ◽  
Air Conditioning Systems

The energy saving issues are becoming necessary worldwide, as excessive consumption of energy leads to the consumption of a larger amount of fuel, increases environmental pollution and negatively affects the ozone layer. In Iraq, in particular, the demand for central air conditioning systems and home air conditioners with high electrical capacity has become increasingly clear in the recent years. Air conditioning systems within residential and public buildings, as well as government facilities became a necessity for good internal comfort, which was driven by desertification, high temperature, air pollution and increased population, resulting in increased consumption of electric power and pressing of power plants. Aiming at usage of renewable energy sources, the proposed system uses solar collectors as auxiliary solar thermal compressors and integrate them with air conditioning systems. The proposed solution will increase the cooling system efficiency, reduce electricity consumption and pollution.

Open-Cycle Desiccant Air Conditioning as an Alternative to Vapor Compression Cooling in Residential Applications

1984 ◽  
Vol 106 (3) ◽  
pp. 252-260 ◽  
Author(s):  
J. J. Jurinak ◽  
J. W. Mitchell ◽  
W. A. Beckman
Keyword(s):  
Solar Energy ◽  
Air Conditioning ◽  
Energy Use ◽  
Energy System ◽  
Primary Energy ◽  
Vapor Compression ◽  
Air Conditioners ◽  
Open Cycle ◽  
Vapor Compression Cooling ◽  
Better Than

The performance of open-cycle desiccant air conditioners for residential applications is evaluated. The performance of these systems is compared to that of vapor compression air conditioners on the basis of primary energy use and cost. Systems with improved dehumidifiers can achieve seasonal COP’s on the order of 1.1. These systems, when coupled with a solar energy system to supply regeneration energy, are significantly better than conventional air conditioners on a primary energy basis, but are not presently cost-competitive.

scholarly journals Effectiveness of China’s Labeling and Incentive Programs for Household Energy Conservation and Policy Implications

2021 ◽  
Vol 13 (4) ◽  
pp. 1923
Author(s):  
Zhuangai Li ◽  
Xia Cao
Keyword(s):  
Energy Efficiency ◽  
Energy Saving ◽  
Energy Efficient ◽  
Durable Goods ◽  
Energy Use ◽  
General Social Survey ◽  
Policy Implications ◽  
Air Conditioners ◽  
Incentive Programs ◽  
Consumption Decisions

With incomplete information about the potential benefits and costs of energy-using durables, households may be unwilling to invest in products that are more energy-efficient but also more expensive in purchase decisions. To deal with this problem, labeling policy has been developed to guide customers’ energy consumption decisions by providing understandable information to evaluate the energy efficiency of products. Over the last 20 years, China has implemented a series of mandatory and voluntary energy labeling and incentive policies to reduce energy use and improve the energy efficiency of durable goods in dwellings. This study has employed empirical survey data from the Chinese General Social Survey to study the implementation effectiveness of these policies and explore demographic factors behind consumer investments in energy-saving durables by using the logistic regression model. Statistical results show that energy efficiency labeling, incentive programs, education levels, and regional differences of customers appear to be strong predictors for investing in energy-efficient air conditioners and washing machines. House size is a decisive factor in driving consumers to choose energy-saving air conditioners. In light of the above results, the study suggests improved policy for motivating consumers to purchase energy-efficient appliances in dwellings.

scholarly journals Analysis of Methodology for Scaling Up Building Retrofits: Is There a Role for Virtual Energy Audits?—A First Step in Hawai’i, USA

Energies ◽  
2021 ◽  
Vol 14 (18) ◽  
pp. 5914
Author(s):  
Mark B. Glick ◽  
Eileen Peppard ◽  
Wendy Meguro
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Large Scale ◽  
Energy Use ◽  
Electricity Consumption ◽  
Initial Step ◽  
Existing Building ◽  
Electricity Use ◽  
Energy Audits

Energy audits are a time-consuming and expensive initial step in the building retrofit process. Virtual energy audits purport to be an alternative that remotely identifies energy efficiency measures (EEMs) that may reduce electricity consumption and offset operational costs to businesses operating during and after the COVID-19 pandemic. This case study reviews virtual energy audits as a means to benchmark energy use and estimate cost savings from future EEMs. A novel feature was the estimation of energy costs associated with increasing ventilation to improve indoor air quality. The authors analyzed ten virtual energy audits performed in Honolulu, Hawai’i, over a two-week period that used existing building information and electricity use data to estimate a potential 9% to 41% annual electricity use reduction per building and a 24 MWh to 1195 MWh reduction, respectively. This paper makes a significant contribution through its assessment of virtual energy audits as a step beyond benchmarking, which has merit as an educational tool to motivate business owners to reduce energy use and improve indoor air quality. Further evaluation and improvements are suggested to study how often the virtual energy audits instigate action, how they compare with in-person audits, and their potential for use at a large scale.

An investigation of the cooling performance of air-conditioning systems in seven Chinese hub airport terminals

2019 ◽  
pp. 1420326X1989164 ◽  
Author(s):  
Xiaochen Liu ◽  
Xiaohua Liu ◽  
Tao Zhang ◽  
Lingshan Li
Keyword(s):  
Air Conditioning ◽  
Large Scale ◽  
Rapid Development ◽  
Electricity Consumption ◽  
Normal Operation ◽  
Cooling Performance ◽  
Wide Range ◽  
Ac Systems ◽  
Airport Terminals ◽  
Hub Airport

Airport terminals are key infrastructures with rapid development currently, where the air-conditioning (AC) systems aim to guarantee the normal operation. This research investigated the AC systems in seven Chinese hub airport terminals by a large-scale on-site measurement. The average annual electricity consumption was 177 kWh/(m2 · year), in which 30–60% was consumed by AC systems. The terminal device of AC systems is one of the key components restricting the cooling performance. The commonly used terminal devices (i.e. air handling units) accounted for 40–74% of the AC electricity consumption. As an alternative, the AC system combining radiant floor and displacement ventilation could save 34% of the AC electricity consumption in one investigated airport terminal. Furthermore, the designed cooling capacities were 132–176 W/m2, while the measured values were only 43–90 W/m2. Thus, the AC systems, especially the terminal devices, should have the ability to adjust cooling capacity over a wide range to cope with this prevailing situation of low load rates. This study is beneficial for the design and operation of AC systems in airport terminals.

Sign in / Sign up

Export Citation Format

Share Document