This document summarizes water usage statistics for Georgia in 2005 and discusses water usage terminology. It shows that in 2005, 50% of water withdrawals in Georgia were for thermoelectric power generation, while 57% of total water consumption was for irrigation. It also discusses that virtually all water consumption for thermoelectric power is from evaporation from cooling towers, and provides estimates of typical water consumption rates for different types of power plants. Finally, it briefly outlines Georgia Power's future generation water usage projections and the role of the State Water Research Center.

1. Water – Energy Insights
TAG – SES July 26, 2012

2. Water Use in Georgia - 2005
Withdrawals
Public
22 %
Dom&Com
Thermo 3%
electric
50 %
Industrial
11 %
Irrigation
14 %
Livestock 1 %

3. Confusing Terminology
“Water Use” is used interchangeably with
“Withdrawals” and “Consumption”
Consumption = withdrawal – returned
water
Consumption measures the true impact on
downstream demands

4. Water Use in Georgia - 2005
Thermo Consumption
electric
Livestock 14 % Public Dom&Com 2 %
5% 16 %
Industrial
5%
Irrigation
57 %

5. Water Use in Georgia - 2005
3,000
Thermoelectric
Million Gallons per Day
2,500
2,000
1,500
Public
Irrigation
1,000
Industrial
500
-
1 2 3 4 5 6
Use Category

6. Virtually all our consumption
is evaporation from cooling towers
mandated by environmental
regulations.

7. Typical Steam Plant Water Consumption
 Nuclear 0.83 gallons per KWH
 Coal, oil or gas 0.78 gallons per KWH
 Combined cycle 0.22 gallons per KWH

8. Georgia Power’s Fleet Consumption
0.6 gallons per KWH
23 gallons per day per household

9. Hydropower
7 % of Georgia Power’s capacity
In Georgia, evaporation from lake surface is comparable to
evapo-transpiration from vegetation that was inundated.
Lakes also provide drinking water, recreation
and for USACE, flood control and navigation support
Georgia Power considers hydropower to be non-
consumptive of water

10. Future Generation Water Use
Plant Water Withdrawal and Consumption
3500
3000
2500
Flow (MGD)
2000
1500
1000
500
0
Withdrawal
Year
Consumption

11. Flow (MGD)
100
150
200
250
0
50
20
00
20
01
20
02
20
03
20
04
20
05
20
06
20
07
Year
20
08
20
09
20
10
20
11
20
12
20
13
Future Generation Water Consumption

12. State Water Plan
Hammond
Bowen
McDonough
Yates
Wansley Branch
Scherer Vogtle
e
McIntosh
Franklin
Kraft
Mitchell
Hatch
McManus

13. Water Research Center
Fulfills one component of State Water Plan -
Water Conservation Implementation Plan
 Available to all utilities and industries
 Water Conservation and Re-Use Projects
 Funding by Southern Co, EPRI, DOE
 Independently managed by Southern Research Institute

14. Discussion