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(total cost: US$ 1,233,000; proposed GEF funding US$ 246,000)
Objectives
(a) To evaluate the potential for energy conservation in traditional street lighting systems in Bulgarian cities.
(b) To reduce energy consumption for street lighting in Gabrovo.
(c) To demonstrate the use of energy efficient and environmentally friendly street lights.
(d) To demonstrate the use of time clocks to optimize energy use.
(e) To disseminate the results to other municipalities.
Description
28. The street lighting system in Gabrovo, as in other Bulgarian cities, is inefficient. The Gabrovo system uses sodium and mercury vapor bulbs ranging in output from 125 to 400 Watts. The total installed capacity for the city is 3,035 Kw. No automatic day/night controls are used in the city street lighting system. A considerable potential exists for both demand and consumption reduction through the replacement with high efficiency sodium lamps, time clocks and automatic control system, and the redesigning of the street lighting system to eliminate over-lit and under-lit areas. In the relighting project, the City of Gabrovo will be divided into different zones to test different relighting approaches and lighting products. The project will be designed to attract both Western and Bulgarian lamp and fixture manufacturers and suppliers to participate in demonstrating their products and approaches in different zones. The project will be designed to encourage the use of top-level technology and quality control applications. The results will be disseminated to other cities, which will be encouraged to consider street lighting retrofit projects. Street lighting consumed 313 gigawatt hours of electricity in Bulgaria in 1994, making this an attractive target.
29. The city street lighting subproject is attractive because the savings are very predictable, municipalities are viewed as a low risk, and the new lights are a highly visible statement to citizens of the city's commitment to ending the waste of energy and financial resources. The subproject can be replicated in cities throughout Bulgaria. Because of the direct participation of the City, this subproject will be closely coordinated with subproject 3, which will be used to identify the optimal method of financing the new city street lights.
Transaction Barriers
(a) The initial cost of energy efficient lamps, fixtures, and time clocks are high, compared with current replacement practices.
(b) The information on the different lighting products available and their potential for reducing electricity costs is limited and not widely available.
(c) Because of low electricity costs in the past, there has little historic demand for energy efficient lighting components in the country.
Outcome
(a) Reduction of electricity consumption and an associated reduction in GHG emissions.
(b) Documentation of the monetary savings from street lighting, which will increase the demand for energy efficient lamps for both Bulgarian and foreign manufacturers.
(c) A case study that can be used to promote similar projects in other cities.
Overcoming Financial Barriers
Energy Efficiency Renovation of District Heating and End Use
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