AlfaTech Sustainability Presentation 2020

ELECTRICITY – Water - Energy Nexus

Energy CO2 Intensity & Water Consumption

Water Consumption Gallons/kWh

Water Consumption Gallons/kWh

lb CO2/kWh

lb CO2/kWh

Carbon Intensity

Rank

State

Rank

State

• Carbon is released to atmosphere when electricity is generated. In U.S., this metric varies from 0.057 to 2.026 with the average value of 1 lb per kWh.

1 2 3 4 5 6 7 8 9

Vermont

0.057 0.187 0.189 0.306 0.337 0.453 0.464 0.498 0.513 0.558 0.629 0.811 0.814 0.821 0.855 0.867 0.871 0.879 0.887 0.913 0.926 0.932 0.941 0.77

0.25

27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

Tennessee

0.992 0.998 1.002 1.013 1.013 1.024 1.044 1.116 1.196 1.251 1.281 1.389 1.466 1.468 1.522 1.573 1.627 1.688 1.813 1.954 1.05 1.1

3.6

Washington

2.7

Iowa

0.11 1.65 0.41 0.21 0.14 8.39 0.43 0.48 0.26 0.58

Idaho

7.85 3.71

Georgia

Oregon

Minnesota Maryland

New Hampshire 0.311

0.1

• If the state has high carbon intensity electrical generation, “decarbonization” at building level can cause more harm to the environment.

Maine

0.12 4.64 1.62 1.61 0.07 0.07 0.25 7,25 1.05 0.06 72.64

Florida

California New York

Oklahoma

Texas

District of Columbia 0.482

Michigan Arkansas Kansas Montana Nebraska Wisconsin

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

Connecticut South Dakota New Jersey South Carolina

Water Consumption

16.74

0.3

• Water is utilized for different processes during electrical generation. Water withdrawal and consumption factors vary greatly by the type of the fuel used. U.S. average is 2 gallons per kWh.

Nevada

0.46 0.94

Illinois

Ohio

Virginia

Colorado

1.2

Massachusetts Pennsylvania North Carolina Rhode Island

0

Hawaii

0.04 1.13 3.05 5.13 0.41 5.32 0.58 4.15 0.3

0.53 0.55

New Mexico

• Water is required for energy generation and energy is required to extract, clean and deliver water.

Utah

0

North Dakota 1.664

Louisiana Delaware Alabama

1.47 0.01

Missouri Indiana Kentucky

• If the state water consumption is high, “decarbonization” at building level can be problematic in draught zones.

2.5

Alaska Arizona

0.27 7.85 0.37

West Virginia 1.976

Wyoming

2.026

Mississippi

US Average

1

2

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