Power System Management
EECS 4460/5460-901
Lecture #5A
Customer Demand and Considerations – Update
1
On average in 2019, 154.9Million customers were served by the power industry in the U.S., a 1.0% increase from 2018.
2018 was a record consumption year at 4.178Trillion kwhr
The average use per customer was 24,792 kwhr
Total electric company revenues in 2018 were $406B
The average price to retail customers in 2019 was 10.54 cents/kwhr
Annual 2018 sales by Sector:
Industrial – 1001 GWhr (1,001,000 MWhr)
Commercial – 1382 GWhr
Residential – 1469 GWhr
Overall, for electricity, recently….
All Data EIA unless noted
2
Including Record Consumption in 2018
2019 Update: 4,118 million MWh
3
Also: Industrial Load Leveled Off Prior to COVID-19
4
Weather impact on usage is a primary driver
Load varies substantially daily and on weekends (duty cycle)
This spring was relatively mild; warmer summer
COVID-19 consequences:
Industrial and commercial consumption is lower
Residential consumption is higher
Overall 8-14% demand reduction in March and April
Morning load pickup has shifted
Renewable generation unchanged, but now a higher percentage
New York (NYISO) most significant
NYCA (New York Control Area) averaging 8-9% reduced demand
New York City averaged 13-14% reduced demand through May
NYC currently 7-9% below typical demands
Today: winter weather and response to COVID
COVID-19 Effect on the Load (U.S)*
Measured Residential Load Profile
6
Demand Impacts Vary by Region: NYISO
Demand Impacts Vary by Region: Florida
Aggregated Monthly Historical Retail Load through October 2020
9
Current estimates for total U.S. consumption
EIA January 2021
And finally …Winter Weather!
Source:
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