scholarly journals STUDY THE NEED OF BASELINE ENERGY USE BENCH MARKING OF BUILDINGS IN DIFFERENT CLIMATE ZONES OF INDIA

2021 ◽  
pp. 12-17
Author(s):  
Mr. Kishan Khatri ◽  
Dr. Shweta Choudhary
Keyword(s):  
Energy Use ◽  
Minimum Energy ◽  
National Level ◽  
Energy Performance ◽  
Management Program ◽  
Current Status ◽  
Climate Zones ◽  
Energy Star ◽  
Performance Benchmarking ◽  
Portfolio Manager

The aim of research is to identify a need of a baseline energy use for benchmarking the minimum energy performance of the buildings for different climate zones of India. Its objective is to provide information and create awareness among customers on energy performance so that consumers can make informed decisions while purchasing appliances, selecting the ECMs and in creating a sustainable home. This study will help in the identification of underperforming buildings to target for efficiency improvements, identify best practices from efficient buildings, set investment priorities, verify savings and prevent snapback, share and report performance, earn recognition, continuous monitoring and implement a comprehensive management program. There are rating system available in India i.e. BEE Star Labelling program and GRIHA Baseline Energy Use to support these requirements. However, there are some limitation in the terms of Climate Zones and Standardization. The baseline energy use differs with each other on a certain parameter, which can create a misinterpretation for the building owners to rely on any standard. There is a need of knowing the current status/performance of the building as comparison to the similar type of buildings in India in respective climate zones. There is a further need to getting recognized by the authority at national level providing the status of the building energy performance. Enormous studies have been made and have suggested to follow the best Energy Conservation Measures (ECM’s) in the buildings. However, there is no portal or tool which can guide what further energy performance is needed to choose the ECMs accordingly. There is an online portal called Energy Star Portfolio Manager in USA which looks closer to the need and for the same a research has been carried out including all the stakeholders, engineers, architects, consultants to come up with the need of online benchmarking tool, accessible for all the building holders. Further, the expertise of BEE Certified Energy Auditors and Energy Managers can be helpful in the identification of this eco system of energy use benchmarking for the different climate zones of India. KEYWORDS: Energy Use; Green Buildings; Climate Zones; Energy Performance Benchmarking; Energy Star Portfolio Manager

Evaluation of Cooling, Heating, and Power (CHP) Systems Based on Building Energy-Rating

2007 ◽  
Author(s):  
N. Fumo ◽  
P. J. Mago ◽  
L. M. Chamra
Keyword(s):  
Energy Efficiency ◽  
Economic Analysis ◽  
Energy Efficient ◽  
Energy Use ◽  
Management Practices ◽  
Building Energy ◽  
Energy Performance ◽  
Energy Star ◽  
Star Rating ◽  
Energy Efficient Buildings

Cooling, Heating and Power (CHP) systems are a form of distributed generation that uses internal combustion prime-power engines to generate electricity while recovering heat for other uses. CHP is a promising technology for increasing energy efficiency through the use of distributed electric and thermal energy recovery-delivery systems at or near end-user sites. Although this technology seems to be economically feasible, the evaluation and comparison of CHP systems cannot be restricted to economical considerations only. Standard economic analysis, such as life cycle economic analysis, does not take in consideration all the benefits that can be obtained from this technology. For this reason, several aspects to perform a non-conventional evaluation of CHP systems have to be considered. Among the aspects to be included in a non-conventional evaluation are: power reliability, power quality, environmental quality, energy-efficient buildings, fuel source flexibility, brand and marketing benefits, protection from electric rate hikes, and benefits from promoting energy management practices. Some benefits of these non-economical evaluations can be transferred into an economic evaluation but others give intangible potential to the technology. This paper focus on a non-conventional evaluation based on energy-efficient buildings, which is associated to energy conservation and improvement of the building energy performance rating for government energy programs like Energy Star and Leadership in Energy and Environmental Design (LEED). Results show that the use of CHP systems could improve the Energy Star Rating in more than 50 points. The Energy Star Rating is significant on the LEED Rating as a building can score up to 10 points of the 23 available in the Energy & Atmosphere category on energy efficiency alone. As much as 8 points can be obtained in this category due to the Energy Star rating increment from the use of CHP systems. Clearly the use of CHP systems will help building owners to reach the benefits from these energy programs while improving the overall energy use and energy cost.

Benchmarking Wastewater Facility Energy Performance Using ENERGY STAR® Portfolio Manager

2008 ◽  
Vol 2008 (8) ◽  
pp. 7322-7339 ◽  
Author(s):  
Toby Ast ◽  
Michael DiBara ◽  
Caterina Hatcher ◽  
Jason Turgeon ◽  
Mark O. Wizniak
Keyword(s):  
Energy Performance ◽  
Energy Star ◽  
Portfolio Manager

scholarly journals Residential Energy Efficiency: Benefits of Minimum Energy Performance Standard (MEPS) Implementation for Television in Malaysia

2018 ◽  
Vol 7 (4.35) ◽  
pp. 835
Author(s):  
Aishah Mohd Isa ◽  
Mohd Eqwan Mohd Roslan ◽  
Siti Fatihah Salleh
Keyword(s):  
Energy Efficiency ◽  
Performance Test ◽  
Minimum Energy ◽  
National Level ◽  
Performance Standards ◽  
Energy Performance ◽  
Performance Standard ◽  
Residential Energy ◽  
Air Conditioners ◽  
Residential Energy Efficiency

A popular strategy for promoting energy efficiency at the national level is through the minimum energy performance standards (MEPS). Malaysia implemented MEPS in 2013 for five common household appliances; air conditioners, refrigerators, fans, televisions, and lamps. These products must undergo a performance test. Only products that meet the minimum standards are allowed to enter the Malaysian market. Based on their performance, ratings are awarded ranging from 2-star up to 5-star. A survey the authors conducted in 2017 found that about 98% of televisions sold in Malaysia have already achieved 5-star rating. This paper explores the implications of this finding and quantifies the possible savings that can be achieved in terms of electricity savings and emission reductions. 

scholarly journals Comparison of nZEB indicators for hotel renovations under different European climatic conditions

2020 ◽  
Author(s):  
Filipe O Cunha ◽  
Armando C Oliveira
Keyword(s):  
Energy Efficiency ◽  
Energy Use ◽  
Minimum Energy ◽  
Building Energy ◽  
Energy Performance ◽  
Climatic Conditions ◽  
Energy Model ◽  
The European Union ◽  
Building Stock ◽  
Efficiency Measures

Abstract Hotels hold an important role in the energy efficiency policies of the European Union (EU), as they are typically ranked among the top energy consumers in the non-residential sector. However, a significant amount of the energy used in hotels is wasted, leaving ample room for enhancing energy-efficiency and resource conservation. Indeed, energy refurbishment of the hotel building stock is crucial in order to reach the nearly zero energy building (nZEB) status imposed by EU Directives for energy efficiency, and also an important pillar to achieve the energy targets for 2030 and the transition towards climate-neutral levels by 2050. A typical 4-star hotel in operation in Faro (Portugal) was used as a case study in order to establish energy performance indicators for nZEB hotels in three European cities, taking into account the influence of the climatic context, the technical feasibility and cost effectiveness of the best energy retrofit packages. The study started after the calibration of the building energy model by means of an energy audit and measured data, in order to have a baseline model that represents well the actual energy use of the hotel in the reference location. The building energy model was developed by using DesignBuilder/EnergyPlus software. The validated model was then used to assess the effect of the best retrofit interventions (energy efficiency measures and active solar systems) in order to set minimum energy performance requirements and to reach cost-optimal levels and nZEB levels for refurbished hotels. A significant energy-saving potential was found for the cost-optimal benchmarks, and the obtained nZEB levels can be achieved under technically and economically conditions for the selected cities: Faro, London and Athens.

EFFECT OF DIFFERENT CLIMATES ON A SHIPPING CONTAINER PASSIVE HOUSE IN CANADA

2019 ◽  
Vol 14 (4) ◽  
pp. 133-153
Author(s):  
Wesley Bowley ◽  
Phalguni Mukhopadhyaya
Keyword(s):  
Energy Demand ◽  
Energy Use ◽  
Minimum Energy ◽  
Energy Performance ◽  
Building Envelope ◽  
Arctic Climate ◽  
The Arctic ◽  
Passive House ◽  
Shipping Container ◽  
Passive Houses

Passive House buildings with an annual energy demand of less than 15 kWh/m2a (i.e. kWh/m2 per annum) can help Canada and other countries achieve thermal comfort with minimum energy use and carbon footprint through meticulous design and selection of highly efficient building envelope elements and appliances. Shipping container based passive houses can reduce the cost of passive house construction and also promote recycling. In this paper, a passive house built using shipping containers, originally designed for Victoria, BC, Canada, is analyzed using Passive House Planning Package (PHPP) software in different climactic zones of Canada. The locations under consideration are: Halifax (Cool–Temperate), Toronto (Cold–Temperate), Edmonton (Cold), and Yellowknife (Arctic–Climate). This paper critically examines the energy demand changes in various climate zones and make necessary modifications to the design to achieve passive house energy performance requirements in selected climates. Results show that with modified designs shipping container passive houses can meet passive house requirements, except in the Arctic–Climate of Yellowknife.

scholarly journals Energy and Greenhouse Gas Savings for LEED-Certified U.S. Office Buildings

Energies ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 749
Author(s):  
John H. Scofield ◽  
Susannah Brodnitz ◽  
Jakob Cornell ◽  
Tian Liang ◽  
Thomas Scofield
Keyword(s):  
Greenhouse Gas ◽  
Energy Use ◽  
Energy Savings ◽  
Electric Energy ◽  
Building Energy ◽  
Energy Performance ◽  
Office Buildings ◽  
Ghg Emission ◽  
Site Energy ◽  
New Construction

In this work, we present results from the largest study of measured, whole-building energy performance for commercial LEED-certified buildings, using 2016 energy use data that were obtained for 4417 commercial office buildings (114 million m2) from municipal energy benchmarking disclosures for 10 major U.S. cities. The properties included 551 buildings (31 million m2) that we identified as LEED-certified. Annual energy use and greenhouse gas (GHG) emission were compared between LEED and non-LEED offices on a city-by-city basis and in aggregate. In aggregate, LEED offices demonstrated 11% site energy savings but only 7% savings in source energy and GHG emission. LEED offices saved 26% in non-electric energy but demonstrated no significant savings in electric energy. LEED savings in GHG and source energy increased to 10% when compared with newer, non-LEED offices. We also compared the measured energy savings for individual buildings with their projected savings, as determined by LEED points awarded for energy optimization. This analysis uncovered minimal correlation, i.e., an R2 < 1% for New Construction (NC) and Core and Shell (CS), and 8% for Existing Euildings (EB). The total measured site energy savings for LEED-NC and LEED-CS was 11% lower than projected while the total measured source energy savings for LEED-EB was 81% lower than projected. Only LEED offices certified at the gold level demonstrated statistically significant savings in source energy and greenhouse gas emissions as compared with non-LEED offices.

scholarly journals Evaluation of Urban-Scale Building Energy-Use Models and Tools—Application for the City of Fribourg, Switzerland

2021 ◽  
Vol 13 (4) ◽  
pp. 1595
Author(s):  
Valeria Todeschi ◽  
Roberto Boghetti ◽  
Jérôme H. Kämpf ◽  
Guglielmina Mutani
Keyword(s):  
Machine Learning ◽  
Energy Use ◽  
Residential Buildings ◽  
Building Energy ◽  
Energy Performance ◽  
Space Heating ◽  
Engineering Model ◽  
Building Energy Use ◽  
The Impact ◽  
The City

Building energy-use models and tools can simulate and represent the distribution of energy consumption of buildings located in an urban area. The aim of these models is to simulate the energy performance of buildings at multiple temporal and spatial scales, taking into account both the building shape and the surrounding urban context. This paper investigates existing models by simulating the hourly space heating consumption of residential buildings in an urban environment. Existing bottom-up urban-energy models were applied to the city of Fribourg in order to evaluate the accuracy and flexibility of energy simulations. Two common energy-use models—a machine learning model and a GIS-based engineering model—were compared and evaluated against anonymized monitoring data. The study shows that the simulations were quite precise with an annual mean absolute percentage error of 12.8 and 19.3% for the machine learning and the GIS-based engineering model, respectively, on residential buildings built in different periods of construction. Moreover, a sensitivity analysis using the Morris method was carried out on the GIS-based engineering model in order to assess the impact of input variables on space heating consumption and to identify possible optimization opportunities of the existing model.

scholarly journals UNDERSTANDING THE EMBEDDED CARBON CHALLENGES OF BUILDING SERVICE SYSTEMS

2021 ◽  
Vol 1 ◽  
pp. 3279-3288
Author(s):  
Maria Hein ◽  
Darren Anthony Jones ◽  
Claudia Margot Eckert
Keyword(s):  
Energy Use ◽  
Cooling System ◽  
Current System ◽  
Energy Performance ◽  
Service Systems ◽  
Carbon Footprints ◽  
Embodied Carbon ◽  
Study Results ◽  
Operational Energy

AbstractEnergy consumed in buildings is a main contributor to CO2 emissions, there is therefore a need to improve the energy performance of buildings, particularly commercial buildings whereby building service systems are often substantially over-designed due to the application of excess margins during the design process.The cooling system of an NHS Hospital was studied and modelled in order to identify if the system was overdesigned, and to quantify the oversizing impact on the system operational and embodied carbon footprints. Looking at the operational energy use and environmental performance of the current system as well as an alternative optimised system through appropriate modelling and calculation, the case study results indicate significant environmental impacts are caused by the oversizing of cooling system.The study also established that it is currently more difficult to obtain an estimate of the embodied carbon footprint of building service systems. It is therefore the responsibility of the machine builders to provide information and data relating to the embodied carbon of their products, which in the longer term, this is likely to become a standard industry requirement.

Sign in / Sign up

Export Citation Format

Share Document