SOPD Load Forecasting & Energy Scheduling

Question 1

Which weather variable is MOST influential for day‑ahead electric load forecasting in temperate climates?

Accepted Answer

Ambient temperature

Answer

Wind speed

Answer

Solar irradiance

Answer

Barometric pressure

Question 2

The load duration curve plots:

Accepted Answer

Ranked load levels versus percent of time

Answer

Demand versus time chronologically

Answer

Energy versus cost

Answer

Generation versus frequency

Question 3

Which statistical technique is commonly applied to model linear relationships between load and explanatory variables?

Accepted Answer

Multiple linear regression

Answer

K‑means clustering

Answer

Random forest

Answer

Principal component analysis

Question 4

Unit commitment in energy scheduling primarily determines:

Accepted Answer

Which generators are started or shut down to meet forecasted demand

Answer

Real‑time price spikes

Answer

Transmission line power flow

Answer

Reactive power dispatch

Question 5

Spinning reserve is scheduled to:

Accepted Answer

Respond to sudden contingencies

Answer

Balance hourly energy

Answer

Cover forecast error for the next day

Answer

Provide voltage regulation only

Question 6

A SARIMA model is MOST suitable for forecasting:

Accepted Answer

Monthly energy demand with seasonality

Answer

Instantaneous frequency

Answer

Real‑time voltage

Answer

Hourly protection relay status

Question 7

The morning ramp in a daily load curve usually occurs during which period?

Accepted Answer

05:00–09:00

Answer

00:00–02:00

Answer

12:00–14:00

Answer

22:00–23:00

Question 8

Demand‑side management programs that shift consumption from peak to off‑peak hours will ____ the forecasted peak load.

Accepted Answer

Reduce

Answer

Increase

Answer

Delay

Answer

Have no effect on

Question 9

In economic dispatch, the marginal cost curve intersects the system demand curve to determine:

Accepted Answer

System lambda (incremental cost) and dispatched outputs

Answer

Voltage reference

Answer

Power factor

Answer

Line impedance