University-of-West-Virginia-Measurement-Verification

UNIVERSITY OF WEST VIRGINIA MEASUREMENT & VERIFICATION 3413 Ohio AVE Tampa, FL 33611 www.gts-heaters.com info@gts-heaters.com (813) 263-4287 Generator Types Included Generator CAT Cummins Cummins KW Heat Pump Type 1500 KW indoor heat pump 1100 KW inside generator enclosure heatpump 750 KW outside generator enclosure heat pump Table of Contents Summary Savings Analysis - CAT CAT Cummins Cummins Cummins Cummins Total Savings Table University of West Virginia Measurement & Verification Chart analysis Graph Chart analysis Graph Chart analysis Graph Project Summary The generators selected were chosen due to the size and predicted usage This was the perfect scenario to showcase the possible options for Generator Heat Pumps One of the generators (CAT) was an interior generator and had the heat pump install inside as well Another (Cummins 1) was an outside generator and had the heat pump installed outside of the generator enclosure using a NEMA-4 fabricated enclosure The final Generator (Cummins 2) was an outside generator and the heat pump was installed inside the generator enclosure due to the large amount of space inside the enclosure M&V was performed pre and post heat pump install on each generator and is analyzed in this report Proposed Savings Estimation Project Measurement and Verification Measurement and verification was performed for weeks in June and weeks in July before the heat pump install months of post install data was recorded and used to determine the annual usage on the heat pumps and the block heaters Savings is derived from the pre annualized usage data minus the post annualized usage data Data logged (PRE): - Block Heater Amperage Coolant Temperature Ambient Temperature 3413 Ohio AVE Tampa, FL 33611 Data logged (POST): - Block Heater Amperage Coolant Temperature Ambient Temperature Heat Pump Amperage www.gts-heaters.com info@gts-heaters.com (813) 263-4287 Week Data Analysis (2 weeks pre, weeks post) Average Engine Temp Average Ambient Temp KWH Used Block Heaters (Pre) Block Heaters (Post) Heat Pump Reduction (Pre - Post) 98.37 96.29 96.29 75.85 79.68 79.68 Runtime (hrs) 1,503.61 266.35 1,237.26 156.26 33.43 122.83 The weeks of Pre data was analyzed against weeks of Post data during a similar time of year to determine a preliminary savings analysis Annualized Data (annualized from week analysis) Block Heaters (Pre) Block Heaters (Post) Heat Pump Reduction (Pre - Post) Average Engine Temp Average Ambient Temp KWH Used Per Year Annual Runtime (hrs) 98.37 96.29 96.29 75.85 79.68 79.68 43,940.76 6,456.67 37,484.09 4,566.42 810.27 3,756.16 The week data was then used in conjuction with the runtime to project out to year of data Cat Pre Block Heater kWh Pre Average Coolant Temp Pre Average Ambient Temp Post Block Heater kWh Post Average Coolant Temp Post Average Ambient Temp Post Heat Pump kWh Morgantown WV Weather data average Savings JAN 7,536.32 95.70 71.21 0.60 95.70 71.21 172.07 30.00 7,363.65 FEB 6,361.83 94.08 63.69 2.80 94.08 63.69 735.23 33.00 5,623.79 MAR 3,987.47 94.08 68.72 2.80 94.08 68.72 852.18 40.50 3,132.49 APR 2,508.62 94.08 74.15 2.80 94.08 74.15 270.57 51.50 2,235.25 MAY 2,135.44 94.08 76.76 2.80 94.08 76.76 270.57 60.50 1,862.07 JUN 494.54 98.00 74.34 2.80 94.08 81.04 315.98 69.50 175.76 JUL 442.45 98.87 77.50 2.25 96.84 81.04 315.98 73.00 124.22 AUG 1,794.36 94.08 76.76 3.13 96.06 76.76 310.00 72.00 1,481.23 SEP 1,972.43 94.08 74.15 2.42 96.32 74.15 310.00 65.50 1,660.01 OCT 2,990.60 94.08 68.72 6.58 83.00 68.72 270.57 54.00 2,713.45 NOV 4,454.97 94.08 63.69 2.16 95.23 63.69 852.18 43.50 3,600.63 DEC 6,748.94 94.08 71.29 2.46 95.42 71.29 735.23 33.50 6,011.25 Percent Savings Annual 41,427.95 33.59 5,410.56 35,983.80 86.86% The full pre and post data was added up analyzed with some assumptions to determine final savings achieved The block heater kWh post is very low This is due to the fact that this unit is indoors and has supplemental ambient heat Assumed values Averaged values *Assumed values *This data was manually entered due to logger malfunction Based on other logged and averaged data for this unit University of West Virginia Measurement & Verification CAT 8,000.00 80.00 7,000.00 70.00 6,000.00 60.00 5,000.00 50.00 4,000.00 40.00 3,000.00 30.00 2,000.00 20.00 1,000.00 10.00 - Degrees Fahrenheit kWh Cat Pre Block Heater kWh Post Block Heater kWh Post Heat Pump kWh Morgantown WV Weather data average - Month The graph above shows the weather data curve that was used to normalize some of the block heater data The block heater pre-data can be seen projected as the inverse of the weather data curve, but is a slightly steeper curve It is clear that the block heaters run heavily in everything but the summer months, with the winter months being the highest usage The post block heater kWh used is seen as mostly null here The reason for this is due to the fact that the generator is indoors and thus has some supplemental heat and the ambient temperature never falls low enough for the block heaters to engage The heat pump usage is a double peaked line due to the highest usages being in the spring and fall In the summer, the heat pump usage is low due to warmer temperatures outside And in the winter the usage is low due to the block heaters taking some of the burden due to very low outside air temps falling below the heat pump minimum operating temperature The high peak on the heat pump in the fall is a higher usage than is actually the case 3413 Ohio AVE Tampa, FL 33611 www.gts-heaters.com info@gts-heaters.com (813) 263-4287 Week Data Analysis (2 weeks pre, weeks post) Average Engine Temp Average Ambient Temp KWH Used Block Heaters (Pre) Block Heaters (Post) Heat Pump Reduction (Pre - Post) 95.26 97.99 99.77 79.57 78.42 80.19 Runtime (hrs) 467.30 86.42 380.88 58.88 37.39 21.49 The weeks of Pre data was analyzed against weeks of Post data during a similar time of year to determine a preliminary savings analysis Annualized Data (annualized from week analysis) Block Heaters (Pre) Block Heaters (Post) Heat Pump Reduction (Pre - Post) Average Engine Temp Average Ambient Temp KWH Used Per Year Annual Runtime (hrs) 95.26 97.99 97.99 79.57 78.42 78.42 13,656.05 2,002.28 11,653.77 1,720.78 866.35 854.43 The week data was then used in conjuction with the runtime to project out to year of data Cummins Biomed Pre Block Heater kWh Pre Average Coolant Temp Pre Average Ambient Temp Post Block Heater kWh Post Average Coolant Temp Post Average Ambient Temp Post Heat Pump kWh Morgantown WV Weather data average Savings JAN 6,123.51 140.21 42.82 420.26 140.21 42.82 2.44 30.00 5,700.81 FEB 5,169.20 111.31 34.74 504.15 111.31 34.74 80.06 33.00 4,584.99 MAR 3,239.95 111.31 42.63 450.13 111.31 42.63 332.01 40.50 2,457.81 APR 2,038.34 111.31 54.21 450.13 111.31 54.21 807.27 51.50 780.94 MAY 1,735.11 111.31 63.68 360.11 111.31 63.68 807.27 60.50 567.74 JUN 423.81 91.21 75.06 193.28 95.72 73.16 196.85 69.50 33.68 JUL AUG 359.50 1,457.98 93.60 111.31 79.76 76.01 360.11 2.84 97.06 97.97 76.84 76.01 196.85 499.73 73.00 72.00 (197.46) 955.41 SEP 1,602.66 111.31 73.69 2.98 98.06 73.69 464.09 65.50 1,135.60 OCT 2,429.96 111.31 62.33 15.22 96.72 62.33 807.27 54.00 1,607.48 NOV 3,619.81 111.31 43.82 1,415.82 127.27 43.82 332.01 43.50 1,871.98 DEC 5,483.74 111.31 40.74 1,729.23 137.46 40.74 80.06 33.50 3,674.45 Percent Savings Annual 33,683.58 5,904.25 4,605.91 23,173.41 68.80% The full pre and post data was added up analyzed with some assumptions to determine final savings achieved The savings in the month of July were negative due to the fact that the installation of the heat pump was not fully completed as of the beginning of the month and thus the block heater kWh data logged was higher than it actually should be in the following July Assumed values Averaged values University of West Virginia Measurement & Verification CUMMINS Cummins Biomed 7,000.00 80.00 6,000.00 70.00 50.00 kWh 4,000.00 40.00 3,000.00 30.00 2,000.00 20.00 1,000.00 Degrees Fahrenheit 60.00 5,000.00 Pre Block Heater kWh Post Block Heater kWh Post Heat Pump kWh Morgantown WV Weather data average 10.00 - - Month The graph above shows the weather data curve that was used to normalize some of the block heater data The block heater pre-data can be seen projected as the inverse of the weather data curve, but is a slightly steeper curve It is clear that the block heaters run heavily in everything but the summer months, with the winter months being the highest usage The post block heater kWh used is seen as a mostly low usage line here The usage increases in the winter months due to the temperature sometimes dipping below the minimum threshhold of the Heat Pump operating range The heat pump usage is a double peaked line due to the highest usages being in the spring and fall In the summer, the heat pump usage is low due to warmer temperatures outside And in the winter the usage is low due to the block heaters taking some of the burden due to very low outside air temps falling below the heat pump minimum operating temperature 3413 Ohio AVE Tampa, FL 33611 www.gts-heaters.com info@gts-heaters.com (813) 263-4287 Week Data Analysis (2 weeks pre, weeks post) Average Engine Temp Average Ambient Temp KWH Used Block Heaters (Pre) Block Heaters (Post) Heat Pump Reduction (Pre - Post) 105.33 99.77 99.77 82.14 80.19 80.19 Runtime (hrs) 662.56 61.48 164.52 436.56 62.71 14.46 73.23 (24.98) The weeks of Pre data was analyzed against weeks of Post data during a similar time of year to determine a preliminary savings analysis Annualized Data (annualized from week analysis) Block Heaters (Pre) Block Heaters (Post) Heat Pump Reduction (Pre - Post) Average Engine Temp Average Ambient Temp KWH Used Per Year Annual Runtime (hrs) 105.33 99.77 99.77 82.14 80.19 80.19 32,127.32 1,490.54 3,988.00 26,648.78 3,040.68 350.52 1,775.19 914.97 The week data was then used in conjuction with the runtime to project out to year of data Cummins AFA Pre Block Heater kWh Pre Average Coolant Temp Pre Average Ambient Temp Post Block Heater kWh Post Average Coolant Temp Post Average Ambient Temp Post Heat Pump kWh Morgantown WV Weather data average Temp Savings JAN 6,849.23 97.06 44.83 130.69 97.06 44.83 62.23 30.00 6,656.31 FEB 5,781.82 98.37 35.45 353.25 98.37 35.45 378.88 33.00 5,049.68 MAR 3,623.93 98.37 43.50 309.10 98.37 43.50 881.74 40.50 2,433.09 APR 2,279.91 98.37 55.32 264.94 98.37 55.32 723.73 51.50 1,291.24 MAY 1,940.75 98.37 64.98 220.78 98.37 64.98 723.73 60.50 996.24 JUN 423.06 105.11 77.10 176.63 98.37 74.65 188.88 69.50 57.55 JUL 402.11 105.91 81.70 176.63 98.37 78.41 188.88 73.00 36.60 AUG 1,630.77 98.37 77.34 353.25 99.87 77.34 1,131.71 72.00 145.81 SEP 1,792.60 98.37 75.87 556.19 100.59 75.87 909.33 65.50 327.08 OCT 2,717.95 98.37 63.86 615.73 99.91 63.86 723.73 54.00 1,378.49 NOV 4,048.81 98.37 45.79 759.38 97.14 45.79 881.74 43.50 2,407.68 DEC 6,133.64 98.37 43.03 782.62 95.67 43.03 378.88 33.50 4,972.14 Percent Savings Annual 37,624.56 4,699.19 7,173.46 25,751.92 68.44% The full pre and post data was added up analyzed with some assumptions to determine final savings achieved The savings on this one were right in line with the projected savings However, the heat pump usage in the month of January was low due to the data logging during that time period being only a portion of the month Actual usage would be higher Assumed values Averaged values University of West Virginia Measurement & Verification CUMMINS 8,000.00 80.00 7,000.00 70.00 6,000.00 60.00 5,000.00 50.00 4,000.00 40.00 3,000.00 30.00 2,000.00 20.00 1,000.00 10.00 - Degrees Fahrenheit kWh Cummins AFA Pre Block Heater kWh Post Block Heater kWh Post Heat Pump kWh Morgantown WV Weather data average Temp - Month The graph above shows the weather data curve that was used to normalize some of the block heater data The block heater pre-data can be seen projected as the inverse of the weather data curve, but is a slightly steeper curve It is clear that the block heaters run heavily in everything but the summer months, with the winter months being the highest usage The post block heater kWh used is seen as a mostly low usage line here The usage increases in the winter months due to the temperature sometimes dipping below the minimum threshhold of the Heat Pump operating range The heat pump usage is a double peaked line due to the highest usages being in the spring and fall In the summer, the heat pump usage is low due to warmer temperatures outside And in the winter the usage is low due to the block heaters taking some of the burden due to very low outside air temps falling below the heat pump minimum operating temperature 3413 Ohio AVE Tampa, FL 33611 www.gts-heaters.com info@gts-heaters.com (813) 263-4287 The projected savings are determined to have been exceeded The original savings projections were 81,468.05 kWh The original savings dollars were $5,110 The analysis was done on a monthly basis using real data and some projections determined using the real data Some of the projected data was normalized using annual weather data averages that were derived from actual climate data sourced from usclimatedata.com Their data is actual normals from 1981 to 2010 University of West Virginia Measurement & Verification 10 Info@thedigitalagenda.net 3413 Ohio AVE Tampa, FL 33611 www.thedigitalagenda.net www.gts-heaters.com info@gts-heaters.com (954) 854-3361 (813) 263-4287