LED Channel Signage Channel signage refers to the illuminated signs found inside and outside shopping malls to identify store names. Typically these signs are constructed from sheet metal sides forming the shape of letters and a translucent plastic lens. Luminance is most commonly provided by single or double strip neon lamps, powered by neon sign transformers. Retrofit kits are available to upgrade existing signage from neon to LED light sources, substantially reducing the electrical power and energy required for equivalent sign luminance. Red, green, blue, yellow, and white LEDs are available, but at higher cost than red. Red is the most common color and the most to retrofit, currently comprising approximately 80% of the market. Eligibility Requirements This measure must replace inefficient argon-mercury or neon channel letter signs with efficient LED channel letter signs. Retrofit kits or complete replacement LED signs are eligible. Replacement signs cannot use more than 20% of the actual input power of the sign that is replaced. Measure the length of the sign as follows: Measure the length of each individual letter at the centerline. Do not measure the distance between letters. Add up the measurements of each individual letter to get the length of the entire sign being replaced. Algorithms The savings are calculated using the equations below and the assumptions in Table 393. Indoor applications: kWh = [kWbase X(1+IF energy) X HOU X (1-SVGbase)] [kWee X(1+IF – energy) X HOU X (1 SVGEE)] – kWpeak = [kWbase X(1+ IF demand) X CF X (1-SVGbase)] [kWee X(1+ IF – demand) X CF X (1 SVGEE)] – Outdoor applications: kWh = [kWbase X HOU X (1-SVGbase)] [kWee X HOU X (1 SVGEE)] – – kWpeak = = [kWbase X CF X (1-SVGbase)] [kWee X CF X (1 – – SVGEE)] Definition of Terms = Annual energy savings (kWh/letter) ΔkWh kWbase = Change in connected load from baseline (pre-retrofit) to installed (post-retrofit) lighting level (kW/letter)
LED Channel Signage Channel signage refers to the illuminated signs found inside and outside shopping malls to identify store names. Typically these signs are constructed from sheet metal sides forming the shape of letters and a translucent plastic lens. Luminance is most commonly provided by single or double strip neon lamps, powered by neon sign transformers. Retrofit kits are available to upgrade existing signage from neon to LED light sources, substantially reducing the electrical power and energy required for equivalent sign luminance. Red, green, blue, yellow, and white LEDs are available, but at higher cost than red. Red is the most common color and the most to retrofit, currently comprising approximately 80% of the market. Eligibility Requirements This measure must replace inefficient argon-mercury or neon channel letter signs with efficient LED channel letter signs. Retrofit kits or complete replacement LED signs are eligible. Replacement signs cannot use more than 20% of the actual input power of the sign that is replaced. Measure the length of the sign as follows: Measure the length of each individual letter at the centerline. Do not measure the distance between letters. Add up the measurements of each individual letter to get the length of the entire sign being replaced. Algorithms The savings are calculated using the equations below and the assumptions in Table 393. Indoor applications: kWh = [kWbase X(1+IF energy) X HOU X (1-SVGbase)] – [kWee X(1+IF energy) X HOU X (1 – SVGEE)] kWpeak = [kWbase X(1+ IF demand) X CF X (1-SVGbase)] – [kWee X(1+ IF demand) X CF X (1 – SVGEE)] Outdoor applications: kWh = [kWbase X HOU X (1-SVGbase)] – [kWee X HOU X (1 – SVGEE)] kWpeak = = [kWbase X CF X (1-SVGbase)] – [kWee X CF X (1 – SVGEE)] Definition of Terms ΔkWh = Annual energy savings (kWh/letter) kWbase = Change in connected load from baseline (pre-retrofit) to installed (post-retrofit) lighting level (kW/letter)