Havnepladsen 1 2 9 9 0 0 Frederikshavn Denm ark Teleph: + 45 9622 3242 Telefax: + 45 9622 3250 E-mail: info@scanel.dk Website: www.scanel.dk Date: 04/10/2009 Re: Energy saving project for lighting installation POTENTIAL OF TOTAL ANNUALLY SAVINGS: Based on upgrading of app. 2400 pcs. of lighting points: - MWh/Year: 688,41 - Ton NOx/Year: 10,04 - Ton CO2/Year: 344 - Energy savings (%): 63 - Cost savings: € 175.000 ($ 235.000) - Investment: € 218.000 ($ 293.000) - Return of investment (ROI): 15 months - Average cost per KWh: € 0.18 ($ 0.25) On the following pages you will find a detailed description of the survey carried out, along with a detailed explanation to how above savings are achieved.
The following report is based on a survey onboard a passenger vessel with app. 2400 lighting points, to verify and confirm an energy saving program of recommended change and / or upgrades of the existing lighting installation. This report is based on following issues: Keys: - To record and verify the complete light installation for different types and numbers of installed light fixtures and lamps throughout the ship. - To measure and record different areas for the total energy consumption with an average in different light circuits to have the real calculation for possible savings. - Recommendations, for upgrade or change to the most optimal energy efficient products on the market according to given calculation with ROI. Based on your requirements, standards and specifications from architect or class societies. - Reduction in Mercury containing equipments. - Reduction in KWh, oil consumption, CO2 and NOx. - To minimize the total numbers of different kind of light types and lamps for better maintenance and logistic. - To reduce the total numbers of lamps with same or better light outputs. - To reduce the heat and fire risk. - To verify with calculation a guaranteed energy savings with given ROI and extended lifetime. - Spare parts available for at least 10 Years. This report includes: Measurements and calculations for energy savings in: • Engine & technical rooms. • Accommodation with corridors, stairs public areas • Cargo hold, provision, car deck and deck lighting. • Restaurants and other public areas. Complete survey with measurement for the existing lighting installation. The effect analyses measured for existing installation has been done together the vessel’s chief electrician for approval. Recommendation for upgrade to the most energy efficient solutions and products.
Instrument used: Logger type: - CA 8334 (Chauvin Arnoux) Power & quality analyzer (Power meter) Recorded measurements: Vrms (True voltage) Arms (True Current) VA (Volt Ampere) W (Active effect) PF (Power factor) Cos phi. All measurements are done according to installed lighting in comparison with upgrade or change to new energy efficient technology. Best regards Scanel Green Energy A/S Tom Haugen Global Sales Director
Introduction: Due to today's high running cost it's important to evaluate old and exciting high consuming electrical light equipments compared to new technology with focus on low effect & low power consumption. Fluorescent lighting has been adopted in the majority of marine, business and industrial sites because of the increased efficiency compared to other lamps. Although this is a welcome step, a significant proportion of electricity consumption is still required for lighting. With the agreements between EU members and many other countries to reduce the levels of CO2 emissions by significant amounts, directives are in place to ensure that inefficient systems are phased out thus reducing energy generating requirements and hence emissions. There is scope to make these savings because all fluorescent tubes require a ballast to ensure that the necessary conditions are present to strike and sustain the lamp. In fluorescent lighting, conventional magnetic ballasts - the original designs are still most commonly found in existing installations - are inefficient. The poorest examples, class D types, have been banned in EU member states since 21/05/2002. Class C types, which limit input power to 70W when operating a 58W lamp, will be banned from 21/11/2005. Even the most energy efficient magnetic ballast, under the CELMA energy efficiency scheme, requires more input power than the rated power of the lamp driven at 50-60Hz. Other issues with magnetic ballasts are flicker, noise and lack of control. Flicker and noise occur because the lamp is being driven at the line frequency, 50Hz, which is on the edge of human sight perception and well within hearing range. The passive design prevents control such as dimming being used to further reduce energy consumption without resorting to expensive, external control equipment. In contrast, electronic ballasts enable large energy savings to be realised. This is primarily because they operate the tube at high frequency which is more efficient and allows equivalent light output with input power equal to or less than the tube rated power. Dimming can be implemented within the ballast, reacting automatically to ambient conditions or via operator interaction, to provide further savings. Reducing the energy consumed by lighting decreases the load on air conditioning systems giving additional indirect savings. Lamp flicker and audible noise are eliminated thus enhancing the working environment. The directives, with which ballasts sold in the EU must comply, also specify how effectively power must be consumed from the supply. The Power Factor (PF) is a measure of this effectiveness. It is the ratio of the actual load power to the apparent load power. A PF of less than 1.0 indicates increased losses in the supply system usually as a consequence of a phase difference between the applied voltage and the current drawn, a high harmonic content or a distorted/discontinuous current waveform. Electronic ballasts commonly include a Power Factor Correction controller (PFC) to maintain the PF within acceptable limits. However, the PFC circuit itself consumes power and is one of the remaining inefficiencies in the ballast-lamp system. Compact fluorescent lamps are being adopted increasingly by consumers keen to reduce their domestic energy costs. Many of the ballasts used to control these low wattage lamps claim compliance with the relevant EU directives whereas in reality they rely on an exemption clause for ballast-lamp combinations consuming less than 25W. The poor PF performance of these units is tolerated by the energy suppliers at present but one has to wonder how long this will continue to be the case when used in ever increasing numbers. The differences can be visualised by comparing voltage and current waveforms for different ballast types.
Scanel Green Energy A/S introduces a complete new solution as a part to your energy saving program where we evaluate a project’s light installation. Do effect measurements with suggested upgrades to new energy efficient solutions with real calculations for the investments. Scanel Green Energy A/S can offer a complete range of fluorescent tube lights, compact down- lights, energy efficient lamps and high quality LED technology for interior, engine room, technical rooms and outside luminaries from IP22 - IP68 and Ex. For refit projects we can offer replacement kits for existing and onboard installed light fixtures of fluorescent, PL lights. This report is based on a complete survey with logged and true measurements for three different light circuits when operating by shaft generators and standard generators: SHAFT GENERATOR OPERATION: Measurement # 1: Switchboard LB9-F19 “Corridor deck 4 stbd .” Consists: 10 units fluorescent light fixture 2x18Watt all T8 tubes. Glamox GKI 218 IP58, magnetic ballast. Measurement # 2: Switchboard LV2- F14 “Aux. engine room deck 1.” Consists: 5 unit’s fluorescent light fixture 2x36Watt, 1 units 2x18Watt T8 tubes. Glamox GKI-IP67, magnetic ballast. AUX.ENGINE/GENERATOR OPERATION: Measurement # 3: Switchboard LB9-F19 “Corridor deck 4 stbd .” Consists: 10 units fluorescent light fixture 2x18Watt all T8 tubes. Glamox GKI 218 IP58, magnetic ballast. Measurement # 4: Switchboard LV5- F10 “Car deck stbd deck 2” Consists: 10 units fluorescent light fixture 2x36Watt all T8 tubes. Glamox GKI-IP67, magnetic ballast.
APPENDIX 1 Existing light installation . 1.1 Engine and technical rooms. Engine and technical rooms: The light installation is based on fluorescent tube light fixtures with T8 tubes, magnetic ballast and starters. • 174 fluorescent fixtures 2x18Watt T8 IP58, normal lighting, ref. # 1 & 2. • 99 fluorescent fixtures 2x36Watt T8 IP58, normal lighting, ref. # 4 & 5. • 50 Down lights, GLX 2x9W PL IP22 normal lighting, ref. # 17. Main engine room: Measurement # 2: Switchboard LV2- F14 “Aux. engine room deck 1.” Consists: 5 unit’s fluorescent light fixture 2x36Watt, 1 units 2x18Watt T8 tubes. Glamox GKI-IP67, magnetic ballast.
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