Rod Roy Eads Lane, Lane Consulting Services.

Transcription

1 Project: Address: Happy OXNARD Community VILLAS, NORTH Apartments BLDG (INITIAL APP P Sample OXNARD Blvd. ST Los VAN Angeles, NUYS, CA CA9141 Prepared By: Phone: Fax: Date: Rod Roy Eads Lane, Lane Consulting Services Beach Ave Marina Del Rey, CA rlane@laneconsultingservices.com RLane@LaneConstructionServices.com 3/4/214 This report includes the results of an on-site assessment of this project for the purposes of the evaluation of the energy consumption and upgrade potential of the building. Results reported are based upon information determined at the site, and discussions with the project occupants as well as incorporating published typical weather year information. If you have any questions about this report or would like to discuss the details or findings, please call or us

2 Cover Page Table of Contents Project Summary Energy Use Summary Recommendations Utility Bill Summary HVAC System Heating and Cooling Loads Summary Form ECON-2 Energy Upgrade Recommendations

3 Project Summary 1445 OXNARD ST VAN NUYS, CA Sample Blvd. Project consists 2 buildings: 17 Units in the North and 23 units in the South. There is one common non-setback wall between buildings and accessed through a breezeway which connects the north and south courtyards. This report covers the North Building only. North Bldg 1st floor = slab on grade (SOG); South Bldg 1st floor = SOG / Parking areas under the 2nd floor South Bldg 2nd floor = Raised Lightweight concrete over parking Roof = R-3 Flat built-up on both buildings; Walls = R-13 2x4.16 wood frame HVAC-- North Bldg = In-wall Heat Pump PTAC; South Bldg = Wall furnace w/ no cooling DHW = 1 gallon central boiler w/ recirc both buildings No utility bills were provided for analysis Date of Audit: 2/18/214 House Type: Multi-Family Conditioned Floor Area: 16,94 Foundation Type: Raised Floor Number of Stories: 2 California Climate Zone: 9 Number of Bedrooms: 4 Weather Data: CZ9RV2.wy2 WHERE THE ENERGY IS USED This pie chart estimates the energy cost for the various types of end uses in the home. Data has been calculated using software that uses typical profiles of usage to estimate end use cost. Your costs may vary from these numbers depending upon how the home is operated. EnergyPro 5.1 by EnergySoft User Number: 835 RunCode: T1:25:41 ID: HAPPY OXNARD VIL Page 3 of 1

4 Energy Use Summary 1445 OXNARD ST VAN NUYS, CA Sample Blvd. The tables and graphs below summarize the major energy uses in the home for both electricity and fossil fuels. Ancillary uses include swimming pools and spas. ELECTRICITY End Use Space Heating Space Cooling Fans Pumps Domestic Hot Water Indoor Lighting Outdoor Lighting Ancillary Renewables TOTAL kwh/yr 13,987 25,438 6,121 1,37 11, ,536 98,12 FOSSIL FUEL End Use Space Heating Therms/yr Domestic Hot Water Ancillary TOTAL 2, ,694 EnergyPro 5.1 by EnergySoft User Number: 835 RunCode: T1:25:41 ID: HAPPY OXNARD VIL Page 4 of 1

5 Recommendations 1445 OXNARD ST VAN NUYS, CA Sample Blvd. The recommendations shown in this table are based upon the computerized analysis of the home, and show predicted energy and cost savings. Savings may vary depending upon occupant use habits as well as the proper installation of measures. Savings Improvement Description Annual Savings Est. Cost to Install Site TDV Replace 8 refrigerators with Energy Star <4 kwh/yr. Formula used= (9 units x 775 kwh/yr default) + (8 units x 4 kwh/yr) Divided by 17 units = 598 kwh/yr average Frigidaire $8 each $282 $6,4 1.8 % 2.2 % Solar Domestic Hot Water Solar Fraction = 6 % $1,391 $45, 2.4 % 1.2 % Each savings row also includes the savings from prior rows in table EnergyPro 5.1 by EnergySoft User Number: 835 RunCode: T1:25:41 ID: HAPPY OXNARD VIL Page 5 of 1

6 Recommendations 1445 OXNARD ST111 Sample Blvd. VAN NUYS, CA 9141 The summary below compares the annual home energy cost before and after the measures shown in the recommendations table. Some savings may occur in features that have not been upgraded simply because the reduced energy usage from other recommendations moves the home into a lower utility rate tier. The existing data shown is based upon the calculated amount the home would use under normal weather and operating conditions. Annual Results Energy Cost End Use Existing Improved Savings Space Heating $1,265 $1,295 ($3) Space Cooling $2,31 $2,267 $33 Fans $554 $547 $7 Pumps $118 $118 $ Domestic Hot Water $2,342 $1,235 $1,17 Indoor Lighting $997 $997 $ Outdoor Lighting $54 $54 $ $3,852 $3,578 $275 Ancillary $ $ $ Renewables $ $ $ TOTAL $11,483 $1,91 $1,391 Misc Existing Improved Savings Average Demand (kw) TDV Energy (kbtu/ft 2 -yr) Demand usage is important to the utility as it impacts how much power plant capacity they must have at a given hour. Time Dependent Valuation (TDV) energy is a metric used by the California Energy Commission to value energy at different hours of the year. CO 2 (tons/year) Existing Improved Savings Electricity Fossil Fuel TOTAL This table compares calculated Carbon Dioxide (CO 2 ) emissions before and after the home improvements. By reducing the energy usage of the home, the amount of CO 2 emissions resulting from electricity production and fossil fuel combustion will be reduced. EnergyPro 5.1 by EnergySoft User Number: 835 RunCode: T1:25:41 ID: HAPPY OXNARD VIL Page 6 of 1

7 Recommendations 1445 OXNARD ST VAN NUYS, CA Sample Blvd. Annual Results Electricity (kwh) Fossil Fuel (therms) End Use Existing Improved Savings Existing Improved Savings Space Heating Space Cooling Fans Pumps Domestic Hot Water 13,987 25,438 6,121 1,37 14,315 25,69 6,48 1, ,49 1,284 1,125 This summary compares the calculated annual home energy usage before and after the measures shown in the recommendations table. The existing data shown is based upon the calculated amount the home would use under normal weather and operating conditions. Indoor Lighting 11,27 11,27 Outdoor Lighting ,536 36,527 3, Ancillary Renewables TOTAL 98,12 94,889 3,123 2,694 1,568 1,125 EnergyPro 5.1 by EnergySoft User Number: 835 RunCode: T1:25:41 ID: HAPPY OXNARD VIL Page 7 of 1

8 Utility Bill Summary 1445 OXNARD ST VAN NUYS, CA Sample Blvd. These graphs show the energy use for the home based upon billing data collected from the utility. Also shown are the projected use numbers based upon the energy simulation tool for a typical year. The projected use numbers may vary from the actual year of billing data due to occupant use patterns and differing weather conditions. ELECTRICITY LADWP R-1 Zone 2 kwh Tier Rate Los Angeles R-1 Winter Zone 2 5 kwh $.72/kWh Los Angeles R-1 Summer Zone 2 1 kwh Over Over 5 kwh 1 kwh $.72/kWh $.72/kWh $.12/kWh $.72/kWh $.852/kWh Many electricity rates are tiered, which means you get charged a higher rate per unit of electricity used as your usage increases. Saving energy in these higher tiers can produce substantial cost savings. FOSSIL FUEL SoCal Gas GR-1 Therm Tier Rate SOCAL Gas GR-1 Winter 5.73 therms $.736/therm SOCAL Gas GR-1 Summer Over therms Over $.986/therm $.736/therm $.986/therm The tables above show the utility rate structure for the home which is based upon usage tiers. EnergyPro 5.1 by EnergySoft User Number: 835 RunCode: T1:25:41 ID: HAPPY OXNARD VIL Page 8 of 1

9 HVAC SYSTEM HEATING AND COOLING LOADS SUMMARY Project Name OXNARD HAPPY COMMUNITY VILLAS, NORTH APARTMENTS BLDG (INITIAL APP PHASE) Date 3/4/214 System Name Floor Area HEAT PUMP PTAC 16,94 ENGINEERING CHECKS SYSTEM LOAD Number of Systems 17 COIL COOLING PEAK COIL HTG. PEAK Heating System Output per System Total Output (Btuh) Output (Btuh/sqft) Cooling System Output per System Total Output (Btuh) Total Output (Tons) Total Output (Btuh/sqft) Total Output (sqft/ton) Air System CFM per System 12, 24, , 36, Total Room Loads Return Vented Lighting Return Air Ducts Return Fan Ventilation Supply Fan Supply Air Ducts TOTAL SYSTEM LOAD HVAC EQUIPMENT SELECTION CFM 21,835 Sensible 441,633 6, ,55 Latent 19,237 19,237 CFM 9,93 Sensible 342,331-6, ,415 Airflow (cfm) Airflow (cfm/sqft) Airflow (cfm/ton) Outside Air (%)... % EXISTING PTAC HEAT PUMP Total Adjusted System Output 274, ,249 6,798 6, ,44 134,44 Outside Air (cfm/sqft). (Adjusted for Peak Design conditions) Note: values above given at ARI conditions TIME OF SYSTEM PEAK Aug 3 PM Jan 1 AM HEATING SYSTEM PSYCHROMETRICS (Airstream Temperatures at Time of Heating Peak) 28 ºF 7 ºF 15 ºF Outside Air cfm Heating Coil 16 ºF 7 ºF 7 ºF COOLING SYSTEM PSYCHROMETICS (Airstream Temperatures at Time of Cooling Peak) 98 / 71 ºF 75 / 63 ºF 55 / 54 ºF Outside Air cfm Cooling Coil 56 / 54 ºF 49.7 % 75 / 62 ºF 75 / 62 ºF EnergyPro 5.1 by EnergySoft User Number: 835 RunCode: T1:25:41 ID: HAPPY OXNARD VILLAS Page 9 of 1

10 Energy Upgrade Recommendations Project Name Project Address Recommended Improvements Solar Domestic Hot Water OXNARD Happy Community VILLAS, NORTH Aparentments BLDG (INITIAL APP PHASE) Sample OXNARD Blvd. ST VAN Los Angeles, NUYS, CA9141 Documentation Author Author Address Description Indoor Refrigerator = 598 kwh Garage Refrigerator = kwh Dishwasher =.46 EF Solar Fraction = 6 % Roy Rod Eads Lane, Lane Consulting Services Beach Ave Marina Del Rey, CA 9292 Annual Savings $282 $1,391 Est. Cost to Install $6,4 $45, ECON-2 Savings Site TDV 1.8 % 2.4 % 2.2 % 1.2 % Annual Results Energy Cost Electricity (kwh) Fossil Fuel (therms) End Use Existing Improved Savings Existing Improved Savings Existing Improved Savings Space Heating Space Cooling Fans Pumps Domestic Hot Water Indoor Lighting Outdoor Lighting /Plug Loads Ancillary Renewables TOTAL $1,265 $2,31 $554 $118 $2,342 $997 $54 $3,852 $ $ $11,483 $1,295 $2,267 $547 $118 $1,235 $997 $54 $3,578 $ $ $1,91 ($3) $33 $7 $ $1,17 $ $ $275 $ $ $1,391 13,987 25,438 6,121 1,37 11, ,536 98,12 14,315 25,69 6,48 1,37 11, ,527 94, ,9 3,123 2, ,694 1, ,568 1,125 1,125 CO 2 (lbs/year) Existing Improved Savings Climate Zone: Electricity 67,628 65,473 2,155 Electric Rate: Fossil Fuel 31,382 18,272 13,11 Gas Rate: TOTAL 99,11 83,745 15,265 Floor Area: Average Demand (kw) TDV Energy (kbtu/ft 2 -yr) The estimated operating costs shown in this report are dependent upon many factors. The construction and conservation features of the project clearly are important. Equally important is the thermostat setting. How the thermostat is used, appliance use, and occupant interaction all influence the annual operating cost. The estimates provided in this report are based on typical conditions; your actual usage will vary. EnergyPro by EnergySoft User Number: 835 Type: LADWP R-1 Zone 2 SoCal Gas GR-1 Improvements above shown with cumulative savings benefit for combined measures RunCode: T1:25:41 ID: HAPPY OXNARD VILLAS Page 1 of ,94 Multi-Family