Cost Benefit Opportunity for End Use Segment Using Lighting Retrofit at Taylor’s University

Effective Demand Side Management (DSM) practices require adequate assessment in which several important factors are taken into consideration. Criteria to measure DSM potential and setting DSM targets are substantial to be well predefined. The aim of this paper is to propose assessment framework towards effective residential lighting demand side management planning. The assessment involves multi-dimensional factors comprising technical, economic, society preference, and environmental emission along with their mean of analysis. Technical dimension in terms of electricity demand is analyzed using Baseline Energy Use method whereas Life Cycle Cost analysis along with Cost-Benefit Assessment is used to calculate economic cost and other parameters during the project lifetime. Multi-criteria decision making using Analytic Hierarchy Process is performed to capture customer preference on selecting the preferable DSM loading scheme. In addition, environmental emission reduction potential is revealed using End-use Electricity Saving method.

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Daylight Factor for Energy Saving in Retrofitting Institutional Building

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.724-725.1630 ◽

2013 ◽

Vol 724-725 ◽

pp. 1630-1635 ◽

Cited By ~ 3

Author(s):

Rozana Zakaria ◽

Armin Amirazar ◽

Mushairry Mustaffar ◽

Rosli Mohammad Zin ◽

Muhd Zaimi Abd Majid

Keyword(s):

Energy Consumption ◽

Cost Benefit ◽

Lighting Design ◽

Payback Period ◽

Total Energy Consumption ◽

Interior Space ◽

Existing Building ◽

Artificial Lighting ◽

Lighting Retrofit ◽

The Cost

In Malaysia, lighting is the second electric power consumption after air conditioning and it is increasing every year. Most of the lighting design standard for building in Malaysia is based on MS1525, and this being taken without further measure on daylight consideration. Movement from inefficient and unsustainable energy practice to more energy efficient initiatives is vital for building. Universiti Teknologi Malaysia as one of the major institutional building is consuming 9 to 16 million kWh per year. Thus, about 20% of energy consumed was from artificial lighting. This paper aim to highlights the cost benefit study of lighting retrofit, which integrates the utilization of daylight into existing building. Data for this study was obtained through illumination in-situ measurement on two types of artificial lighting with the inclusive of day lighting before and after lighting retrofit. The measurement was conducted in a typical building in Block C09 of Universiti Teknologi Malaysia (UTM). Annual saving and payback period were analysed from the collected data. It is estimated that total energy consumption decreasing around 47.7% over a year from 84,232kWh to 44,014kWh by retrofitted the fluorescent T8, 36W with fluorescent T5, 25W. The estimated total annual electricity bill saving is at RM11,073 (USD3500.00). The return in retrofitting cost is at 2.5 years payback period. The payback analysis portray that lighting design is best integrated with daylight. The significant amount of saving in energy consumption and the cost of retrofit is obtained by integrating daylight as a source of lighting for interior space.

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Evaluating treatment pathways for managing packaging materials from construction of a solar photovoltaic power station

Waste Management & Research ◽

10.1177/0734242x20939627 ◽

2020 ◽

Vol 38 (12) ◽

pp. 1345-1357

Author(s):

Turlough F Guerin

Keyword(s):

Circular Economy ◽

Cost Benefit Analysis ◽

Cost Benefit ◽

Soil Improvement ◽

Packaging Materials ◽

Sustainable Business ◽

Treatment Pathways ◽

End Use ◽

Solar Electricity ◽

Utility Scale

The reuse of end-of-life packaging materials (EOLPM) on site represents, particularly for remote sites, an important contribution to sustainable business practice because it provides a higher value end use when used to develop on-site mulch to enable soil improvement, thereby reducing transport emissions (in relation to the least preferred option of off-site disposal to landfill), lowering costs and offering employment to local contractors. The objective of the study was to demonstrate a local application of the circular economy for EOLPM to a utility-scale solar electricity (USSE) construction site. Although the principles of the circular economy could not be applied fully at the site, it was possible to demonstrate that EOLPM can be reused on site for a higher value than off-site disposal would give. Given the common occurrence of these materials in the rapidly growing renewable energy sector, this represents an important step forward for the sector internationally. The study is the first of its type reported, and the methods used for characterization of the EOLPM included a range of organic and inorganic chemical analyses and phytotoxicity testing, which were followed by an environmental and financial cost-benefit analysis. The selected option of on-site reuse of the materials as a mulch had a global warming potential of 58 t CO2e compared with the business as usual option (transport to landfill) of 3145 t CO2e. The results also demonstrated the broader potential for using EOLPM from USSE sites for soil improvement at remote locations rather than transporting these materials off site for disposal or reuse.

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Laboratory Validation of Integrated Lighting Systems Retrofit Performance and Energy Savings

Energies ◽

10.3390/en13133329 ◽

2020 ◽

Vol 13 (13) ◽

pp. 3329 ◽

Cited By ~ 1

Author(s):

Jordan Shackelford ◽

Paul Mathew ◽

Cynthia Regnier ◽

Travis Walter

Keyword(s):

Energy Savings ◽

Cost Benefit Analysis ◽

Cost Benefit ◽

Lessons Learned ◽

Benefit Analysis ◽

Light Emitting ◽

Occupant Comfort ◽

Advanced Controls ◽

Lighting Systems ◽

End Use

Light-emitting diodes (LED) fixtures and lamps have emerged as leading technologies for general illumination and are a well-established energy efficiency retrofit measure in commercial buildings (from around 2% of installed fixtures and lamps in 2013 to 28% by 2020). Retrofit approaches that integrate elements, such as networked controls, daylight dimming, and advanced shade technologies lag in comparison. Integrated retrofits have been shown to increase savings over single end-use retrofits, but are perceived as higher complexity and risk. More validation of integrated lighting system performance is needed. This study presents results from laboratory testing of three packages combining fixtures, networked controls, task tuning, and daylight dimming, advanced shades, and lighting layout changes. We characterize performance in perimeter open-office zones, finding energy savings from 20% for daylight dimming and automated shades (no LED retrofit) to over 70% for LED retrofits with advanced controls and shades or lighting layout changes. We present some implementation details, including lessons learned from installation and commissioning in the laboratory setting. We also discuss cost-benefit analysis approaches for the types of packages presented, including the need to quantify and incorporate energy and non-energy benefits for advanced shades packages, which enhance occupant comfort but add significant cost.

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