ENERGY
ENERGY SAVINGS
Energy savings is important to end users, and in some instances may be a compliance requirement of the project. When comparing past methods to present and future technologies, there is no apparent single method to solve all energy challenges while meeting the multitude of application specific job requirements. Envoy has numerous options to consider when energy savings is desired.
LAMP OPTIONS
Pulse Start Metal Halide/High Pressure Sodium/Compact
Watts/Lamp Type | Bulb Type | ANSI Code | Nominal Lamp Watts | Initial Lumens | Life [Hours] | |||
175w | MH | Clear | ED17 | M57 | 175 | 14,000 | 10,000 | |
200w | MP | Clear | ED17 | M136 | 200 | 21,000 | 12,000 | |
175w | MP | Clear | ED17 | M152 | 175 | 17,500 | 15,000 | |
150w | MP | Clear | ED17 | M102 | 150 | 14,000 | 15,000 | |
100w | MP | Clear | ED17 | M90 | 100 | 9,000 | 15,000 | |
150w | HPS | Clear | ED17 | S55 | 150 | 16,000 | 24,000 | |
100w | HPS | Clear | ED17 | S54 | 100 | 9,500 | 24,000 | |
70w | CF | Coated | 70 | 5,200 | 12,000 | |||
57w | CF | Coated | 57 | 4,300 | 12,000 | |||
42w | CF | Coated | 42 | 3,200 | 12,000 | |||
85w | Induction | Coated | P41 | 85 | 6,000 | 100,000 |
NOTE: Values are per [1] lamp. Information varies; consult manufacturer for specific information.
CONTROL OPTIONS
Consider Envoy’s available control options to vary output and save energy. By harvesting available daylight along garage perimeters, designers can strategically place sensor activated luminaires that can be dimmed during daylight hours. Photo sensors, timers and motion sensors [all available by others] are all viable control methods that can be used to promote energy savings during daytime operating hours.
Hi/Low Dimming [HL]: Available with specific HID lamps and CWA ballast circuits, this option features a PC board within Envoy that allows step dimming through low voltage wires hooked to a control module, making it ideal to harvest natural daylight along perimeters of open parking structures. Compared to the same fixture at full power, this method offers an astounding energy savings of approximately 51% in low power mode.
CF
Electronic Ballasts: HID electronic ballasts can be used integrally or remote mounted to save energy
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| Average | Number |
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| Yearly | Total |
Lamp Source | Hours 5 | Days/Year |
| Savings | |||||
Input Watts | of Fixtures 4 | Cost [$] | Per Year [$] | ||||||
175W | MP [Full Power] | 208 1 | 1250 | 12 | 365 | .1065 | 121,282 | 62,390 | |
175W | MP [Low Power] 2 | 101 2 | 1250 | 12 | 365 | .1065 | 58,892 | ||
[4] 42W | CF [4 | 186 | 1250 | 12 | 365 | .1065 | 108,454 | 54,227 | |
[4] 42W | CF [2 | 93 | 1250 | 12 | 365 | .1065 | 54,227 |
NOTE: 1 Magnetic ballast CWA circuit. 2 Pulse Start Metal Halide using HL option with Lumark CML Industrial HID dimming system. 3 circuits. Control management by others. 4 Fixture quantity and amount of usable daylight may vary in garage application and design. 6 Average national cost per
Compact Fluorescent lamps using 4CF2 option. Lamps are wired on 2 separate 5 12 hour low power mode used for example, applications may vary.