PNOC Renewables Corporation provided 128 units of 50 Watt-peak solar photovoltaic (PV) modules to the Department of Energy as part of its contribution to the Boni Tunnel Energy-Efficient Lighting System (EELS) Project. The project is an initiative of the Department of Energy towards efficient use of energy through promotion of EELS and to showcase the application of solar photovoltaic technology to power tunnel lighting system. It involves installation of energy efficient lighting system consisting of light emitting diode (LED) lamps which will be provided by Philips Electronics and Lighting, Inc., and solar power supply with a total peak capacity of 6.4 kW from PNOC RC and lithium batteries for energy storage to be provided by the Asian Development Bank (ADB).
Presently, the power requirement of the tunnel lighting is 6 kW. Replacement of the existing lamps with EELS will reduce the power requirement by more than 30%. From 4.3 MWh, about 3 MWh of electricity will now be required by the EELS on a monthly basis, 18% of this will be supplied by the solar PVs. Through this project, the Mandaluyong City government would realize savings on electricity bill of about Php10,000 per month.
Installation of the solar PV power supply system is almost finished. Mounting of brackets for the LED lamps as well as installation of electrical wiring system is ongoing. The target commencement of operation is April 2012.
Other participants of the project include the Department of Public Works and Highways (DPWH) for the design and construction of appropriate infrastructure, and supply of electrical wiring system; Metropolitan Manila Development Authority (MMDA) for assistance in the installation of the electrical system and management of traffic during the installation of the EELS; and the Mandaluyong City Government for the operation, maintenance, and security of the entire installation.