• Data above is from total Building electrical Energy Usage

• Not all of the building electricity flow through low voltage distribution transformers

• Can use Building Energy Data Book End-Use-Split

– Allow team to estimated energy flowing through Low Voltage Transformers
• Building Energy Data Book 1.1, Building Sector Energy Consumption 

1.1.4, US Building Energy End-Use Splits by Fuel Type 

• Fuel Type above (Site Electricity)

0.00

2.00

4.00

6.00

8.00

10.00

12.00

1999 2000 2001 2002 2003 2004 2005 2006 2008 2020 2030

Space Heating (5) Space Cooling Ventilation (8) Water Heating

Lighting Refrigeration (6) Wet Clean (9) Cooking

Electronics (7) Other (10) Computers Adjust to SEDS (11)
• Space Heating – estimated for electrical energy to flow through LVDT at 100%

• Lighting – estimated for electrical energy to flow through LVDT at less than 5%

(increase to 10% )

• Space Cooling – estimated for electrical energy to flow through LVDT at less than 5%

(increase to 10%)

• Water Heating – estimated for electrical energy to flow through LVDT at 100%

• Refrigeration – estimated for electrical energy to flow through LVDT at 50%

(increase to 66%)

• Electronics – estimated for electrical energy to flow through LVDT at 100%

• Ventilation – estimated for electrical energy to flow through LVDT at 100%

• Computers – estimated for electrical energy to flow through LVDT at 100%

• Cooking – estimated for electrical energy to flow through LVDT at 100%

• Wet Cleaning – estimated for electrical energy to flow through LVDT at 100%

• Other – estimated for electrical energy to flow through LVDT at 60%

(increase to 95%)

• Adjust to SEDs – estimated for electrical energy to flow through LVDT at less than 5%

(increase to 10%)
Comments on the estimated energy percentages when not 100%

• Lighting – estimated for electrical energy to flow through LVDT at less than 5%

(increase to 10% )

Most Lighting is at 480Y/277 so no need for LVDT device to covert the voltage.

• Space Cooling – estimated for electrical energy to flow through LVDT at less than 5%

(increase to 10%)

Most Cooling is at 480 Three wire so no need for LVDT to convert the voltage

• Refrigeration – estimated for electrical energy to flow through LVDT at 50%

(increase to 66%)

Large Commercial Refrigeration uses 480 three wire so no need for LVDT to convert the voltage

Cooking refrigeration and break room refrigeration use 120 so would be through LVDT

• Other – estimated for electrical energy to flow through LVDT at 60%

(increase to 95%)

Includes residential small electric devices, heating elements, motors, swimming pool heaters, hot 

tub heaters, outdoor grills, and natural gas outdoor lighting. Includes commercial service station 

equipment, ATMs, telecommunications equipment, medical equipment, pumps, emergency 

electric generators, combined heat and power in commercial buildings, and manufacturing 

performed in commercial buildings. 

• Adjust to SEDs – estimated for electrical energy to flow through LVDT at less than 5%

(increase to 10%)

same comment as Space Cooling
• Adding the percentage of energy flowing through LVDT

• Suggest taking 50%-60% to the existing Data being used from Building 

Electricity for LVDT loading curve

LVDT Power

50%

Not LVDT Power

50% LVDT Power

57%

Not LVDT Power

43%

Initial Split Increasing

percentages
Data converts to loading below 20% 

for the RMS values, which is the 

expected data for LVDT products 

From Industry intelligence.