Controlling The Greenhouse Environment
The cost of supplemental lighting should be considered : prior to the purchase of a light supplementation use a total of 400 + 40 x 3 = 1,320 watts per KWhr. Lettuce seedlings require 24 hours of daylight (Table 3), (Btu/(hours x °F x square feet) Glass - single 1.2: Plastic film ... Return Document
Energy Efficiency Guidlines
Cost for lighting $75 Billion in the US for commercial SQFT Cooling BTU/SQFT Cooling TON/SQFT Heating cost per square foot Cooling cost per square foot Electrical cost per square foot Total Utility cost per square foot Lighting cost per square foot Water & sewer cost ... Fetch Full Source
FINAL AOBA Comments On 12 DCMR I - 2013 Energy Conservation ...
60 lumens per watt unless the luminaire is controlled by a motion sensor or qualifies for 405.6.2 Exterior building lighting power. must be reduced from .7 watts/square feet to .66 watts/square feet. This ... Fetch Full Source
Energy Analysis Case For Sustainable Supply Chain/Operations ...
$17.97 cost. 8.6 Watts. 50,000 hour life. 429 Lumens output . Compact Fluorescent bulb. 4 pack = $5.85. BTU/yr. Y= years remaining of useful building life to you. E f = Furnace Efficiency Cost of insulation = $.0425 per R for each square foot. ... View Full Source
2009 IECC
The commercial building project for shell buildings, all cooling systems ≥54,000 Btu/ha aThe total capacity of all systems without economizers shall not exceed 480,000 Btu/h per building, Spaces that use less than 0.6 watts per square foot ... Read Here
Why Are Buildings So Important? - Iowa Energy Center
Lighting Energy is typically about 40% of Building Energy Cost Reducing Lighting energy reduces Cooling Energy Requirements Personnel Costs can be $300 to $500 per Square Foot per Year 100+ Lumens per Watt systems available ... Access Document
Energy $avings Oppourtunities - Pollution Prevention Office
Typically largest energy user in a commercial building Lighting efficiency = Lumens/watts Compact Fluorescents- not to scale Globe R40 OutdoorPost-top R30 $23.10 $86.50 Life Cycle Cost $1.50 $6.50 Bulb Cost over 10K hours $1.50 $0.50 Cost per Bulb $21.60 $80.00 Operating Cost ... Access Doc
1. 60 lumens per watt for lamps over 40 watts, 2. 50 lumens per watt for lamps over 15 by the appropriate unit lighting power allowance, in watts per square foot, for the use as specified The total capacity of all systems without economizers shall not exceed 480,000 Btu/h per building, ... Document Viewer
LIGHTING DESIGN And TIPS FOR ECBC COMPLIANCE
Relative heat gain = 188 Btu per hour per square foot (Btu/h/ft2). for example, a small commercial building in a cold climate that has a net site HVAC penalty of 25 percent might have a net economic HVAC bonus of 2 the lamp or ballast in watts. Its units are lumens per watt. However, ... View Doc
Creating Energy-Efficient Communities In California: A ...
KW Kilowatt or Thousand Watts LCC Life Cycle Cost LPW Lumens per Watt (lights) Retail/Commercial Mixed Use Building (Commercial only) 9 Civic/Commercial Mixed Use (Commercial only) 12 square footage is based on 20 sqft per first two family members plus 8 sqft for every additional ... Read Content
De Anza College HVAC Module
Lumens, watts per sq. ft.) fixture performance use of “day-lighting” and occupancy sensors Definition of Terms/Concepts higher maintenance cost (cooling towers) HVAC: Building/Energy Management Systems Typical System lighting levels (ft.candles, lumens, watts per sq. ft.) ... Fetch Full Source
Hospital Corporation Of America - HCA - Energy
Commercial Building Energy profile. 80 % Load Factor. • Energy Usage/Cost – 362,366 Btu sqft/yr – $4.94 sqft/yr • Lighting – Interior – T8 fluorescent, incandescent to compact fluorescent Lumens Lumen Maint. Lumens per Watt ... Document Viewer
2010 FL Energy Titlepage
Pound of water one degree Fahrenheit. 1 BTU per minute = 17.6 watts. BUILDING. expressed in lumens per watt. EFFICIENCY. Performance at specified rating conditions. The annual energy cost for the budget building. ENERGY EFFICIENCY RATIO (EER). ... Return Document
Watt - Wikipedia, The Free Encyclopedia
A surface area of one square meter on Earth receives one nanowatt of power from a single star of apparent magnitude A large residential or commercial building may use several megawatts in electric power and Terms such as watts per hour are often misused when watts would be correct. ... Read Article
Energy Management - Aquatic Consulting Services
Per square inch •1/30 of 1 psi • Natatorium Lighting •Cost of light bulb •Exterior building lights, parking lot lighting. Wet Niche Underwater Pool Lights ... Get Doc
AE Calcs Spreadsheet - Drexel University
BTU_Wt_Hr Building_Cost Building_Cost_Per_SF Lt1 Lumens Per Lamp Lt1 Watts Per _Load_Weight Lobby_Allocation Lt1_Area_Luminaire Lt1_Coeff_of_Util Lt1_Efficacy___Lumens_Watt Lt1_Lamp_Type Lt1_Lighting_Level Lt1_Lumens_Per_Lamp Lt1_Maintenance_Factor Lt1_Number_of ... Fetch Here
Good Energy: Energy Saved By Efficient Buildings
Money Savings from DOE Building Energy Codes Program DOE’s $37.5 M investment has resulted in energy savings of $1B per year. Cumulative cost savings E.g. lighting- list allowable watts per square What are they? Commercial or Residential? Building Code Example (1) Building ... Return Document
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