SOPD Load Forecasting & Energy Scheduling 2

Question 1

Which factor most commonly causes a load forecast to UNDERESTIMATE actual demand during a heat wave?

Accepted Answer

Underestimating residential air conditioning saturation

Answer

Residential AC saturation is often underestimated, causing significantly higher-than-forecast cooling loads during extreme heat events.

Question 2

A system operator receives a day-ahead forecast showing a 15% demand increase at 5 PM due to a major sporting event. Which action is MOST appropriate?

Accepted Answer

Pre-position additional spinning reserves before the event

Answer

Pre-positioning spinning reserves ensures the system can respond quickly to the anticipated demand surge without relying on slow-start units.

Question 3

In energy scheduling, the term 'economic dispatch' refers to:

Accepted Answer

Allocating generation output to minimize total fuel cost while meeting load

Answer

Economic dispatch allocates generation among committed units to meet system load at the lowest possible total production cost.

Question 4

A short-term load forecast for the next 4 hours shows demand declining steadily. Which generation scheduling action is MOST appropriate?

Accepted Answer

Begin decommitting peaking units according to their minimum down-time constraints

Answer

As forecast demand declines, operators de-commit peaking units while respecting minimum down-time constraints to avoid mechanical damage.

Question 5

What is the primary purpose of a 'load pocket' analysis in energy scheduling?

Accepted Answer

To locate transmission-constrained areas that require local generation

Answer

Load pocket analysis identifies areas electrically isolated by transmission constraints, requiring local generation that may be more expensive to dispatch.

(SOPD) System Operator/Power Dispatching Practice Test

(SOPD) System Operator/Power Dispatching Practice Test

SOPD Load Forecasting & Energy Scheduling 2