Revision of the EU Green Public Procurement Criteria for Street Lighting and Traffic Signals - Preliminary Report

Lighting is used on more than 1.6 million km of roads in EU28 countries, accounting for some 35 TWh of electricity consumption (1.3% of total electricity consumption) and costing public authorities almost €4000 million each year. A broad review of relevant technical, policy, academic and legislative literature has been conducted. This report examines the current market situation and the potential for reducing environmental impacts and electricity costs by assessing the recent developments in road lighting technology, particularly LEDs. Particularly important areas identified relate to energy efficiency, light pollution, product durability and, specifically for longer lasting and rapidly evolving new LED technologies, reparability and upgradeability. The information in this report shall serve as a basis for discussion with stakeholders about the further development and revision of EU GPP criteria for street lighting and traffic signals.JRC.B.5-Circular Economy and Industrial Leadershi

Power Flow Analysis and Critical Design Issues of Retrofit Light-Emitting Diode (LED) Light Bulb

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LED PROJECTS AND ECONOMIC TEST CASES IN EUROPE

This report presents the status of existing LED pilot actions in Europe, analysing 106 LED test cases from 17 European countries. Projects from the public and commercial sectors form the focus of the report. Reviewed test cases include the use of LED technology in various applications. The results of test cases demonstrate wide variation. Installations offer energy savings of 59% in average (savings range from 10% up to more than 90%), either compared to the original installation or to reference consumption. In many applications, LEDs are competitive, yet a large number of projects are still in the trial phase. In these cases, economic aspects are relatively less relevant, and are often not even accounted for. From the test cases reviewed, most successful applications, in terms of savings and economic considerations, are 1) replacement of incandescent light bulbs in traffic light systems, and 2) replacement of halogen spotlights in indoor applications. Main co-benefits of LED projects analysed include: low maintenance costs, improved lighting characteristics, good indoor and outdoor lighting quality, improved ambience and atmosphere, no UV radiation, environmental benefits and improved security. On the other hand, some challenges to address include: improve the quality characteristics of LEDs and the quality of information and data provided by manufacturers/suppliers, and optimality of LED technology for existing street lighting systems. In order to fully utilise the energy saving potential of LED technology, careful evaluation of existing projects and exchange of information on good practices is necessary. Exploration of bottlenecks and risks is also an important task. Quality characteristics of LEDs, and quality of data provided by manufacturers, will remain the main challenges to penetration of the technology.JRC.F.7-Renewable Energ

A Survey, Classification and Critical Review of Light-Emitting Diode Drivers

Based on a survey on over 1400 commercial LED drivers and a literature review, a range of LED driver topologies are classified according to their applications, power ratings, performance and their energy storage and regulatory requirements. Both passive and active LED drivers are included in the review and their advantages and disadvantages are discussed. This paper also presents an overall view on the technical and cost aspects of the LED technology, which is useful to both researchers and engineers in the lighting industry. Some general guidelines for selecting driver topologies are included to aid design engineers to make appropriate choices.published_or_final_versio

Efficient Pulse Width Modulation LED Headlight Driver

LED headlights can provide better luminescence and less power consumption when compared to traditional halogen headlights. The adoption of LEDs in automobiles has been slow as the technology is more expensive than halogen bulbs, more complex to integrate, and younger. As such, an efficient, simplistic, and easy to use illumination driver was developed to spur on the widespread adoption of LED use in automobile lighting. The circuit developed is capable of providing the necessary illumination for a fraction of the energy input required by traditional lighting

Current Status And Prospects For Lighting Technologies In Senior Living Facilities

This case study of five senior living facilities in Northwestern North Carolina explains the current lighting scenarios commonly found in assisted living and skilled nursing long-term healthcare communities. The study argues existing lighting conditions in the indoor environments ordinarily found in these facilities–activity rooms, dining rooms, hallways, residents’ rooms, and bathrooms–do not meet current recommended lighting standards. Many qualitative benefits such as health and well-being relate to the technical qualities of artificial lighting including, but not limited to, the following: illuminance, color temperature, luminance, and value contrast. Current technologies–for example, BIOS technology and tunable white light–can help with elderly vision and circadian rhythm simulation. Additionally, with the advancement of LED technology, there are economic considerations for switching to a new lighting design. An extended examination of one of the five case study facilities substantiates that a retrofit LED lighting design will bring about annual energy cost savings and a short payback time as shown by a calculation of the return on investment

Energy-Efficient Solutions: A Study of Electrical Installation Advancements in Hong Kong’s Existing Commercial Buildings

This project, sponsored by Business Environment Council Limited (BEC) in Hong Kong, developed a list of technologies recommended to increase the energy efficiency of Hong Kong’s commercial buildings, and identified barriers to the adoption of energy-saving technologies. Information was gathered through desk-based research as well as interviews with building and hotel managers, property developers, technology developers and suppliers, and energy advisory consultants. The team provided BEC with the list of technologies along with their overall descriptions, cost and energy data, case studies, and explanations of advantages and disadvantages. This information will feed into a larger BEC project to create an informational guide to assist in the overall uptake of sustainable technologies

2014 Update on the Status of LED market

Light-emitting diodes (LEDs), a type of solid-state lighting (SSL), are revolutionizing the lighting market. In just the last few years, LED performance has accelerated quickly and a wave of new commercial, industrial and institutional LED fixtures has been introduced. LED technology is fulfilling its promise of offering the market the most efficient means of converting electrons into photons.. The present report contains information on the latest technological developments concerning LED lighting. The report covers also in details the latest development in the LED markets in Europe and other key countries.JRC.F.7-Renewables and Energy Efficienc

Successful Examples of Efficient Lighting

The report gives an overview of the results achieved by the European GreenLight Programme, a voluntary programme to improve energy efficiency in non-residential buildings and street lighting, which has operated for 5 years. The report will summarise the results of the projects undertaken by Partners.JRC.H.8-Renewable energie