CEP Energy Market Fundamentals 2 — Questions and Answers
Question 1: What does the term 'basis' refer to in energy markets?
- The spot price at a delivery hub
- The price difference between a regional location and a benchmark hub (Correct answer)
- The fixed leg of a swap contract
- The minimum contract volume for a power purchase
Correct answer: The price difference between a regional location and a benchmark hub
Basis is the price differential between a specific delivery point and a liquid benchmark hub such as Henry Hub for natural gas.
Question 2: Which of the following best describes a 'heat rate' in the context of power generation?
- The rate at which a boiler heats water
- The BTUs of fuel required to produce one kilowatt-hour of electricity (Correct answer)
- The thermal efficiency of a nuclear reactor
- The temperature differential across a heat exchanger
Correct answer: The BTUs of fuel required to produce one kilowatt-hour of electricity
Heat rate measures generator efficiency as BTUs of input fuel needed per kWh of electrical output — lower heat rates indicate more efficient plants.
Question 3: What is the primary function of an Independent System Operator (ISO)?
- To own and sell electricity generation assets
- To manage the transmission grid and wholesale electricity markets in a region (Correct answer)
- To regulate retail electricity rates for residential customers
- To finance new transmission infrastructure projects
Correct answer: To manage the transmission grid and wholesale electricity markets in a region
An ISO/RTO coordinates the operation of the transmission grid, dispatches generators, and administers wholesale energy markets to ensure reliability.
Question 4: A 'swing' contract in natural gas procurement allows the buyer to:
- Lock in a fixed price for delivery anywhere in the country
- Take variable volumes within a stated minimum and maximum range (Correct answer)
- Trade gas futures on the NYMEX exchange
- Sell excess gas back to the pipeline operator
Correct answer: Take variable volumes within a stated minimum and maximum range
Swing contracts give buyers flexibility to take volumes anywhere between a floor and ceiling, accommodating demand uncertainty.
Question 5: In electricity markets, what is meant by 'locational marginal pricing' (LMP)?
- A flat tariff applied uniformly across all load zones
- The cost of serving the next megawatt of load at a specific grid location, reflecting energy, congestion, and losses (Correct answer)
- The average wholesale price across an entire ISO footprint
- A price cap set by the Federal Energy Regulatory Commission
Correct answer: The cost of serving the next megawatt of load at a specific grid location, reflecting energy, congestion, and losses
LMP decomposes the nodal price into energy, congestion, and marginal loss components, reflecting actual grid conditions at each location.
Question 6: Which market participant typically sets the clearing price in a wholesale electricity energy market?
- The lowest-cost generator dispatched
- The most expensive generator needed to meet demand (the marginal unit) (Correct answer)
- The transmission owner operating in that zone
- The retail utility serving end customers
Correct answer: The most expensive generator needed to meet demand (the marginal unit)
Wholesale markets use a single-clearing-price mechanism where all accepted bids are paid the price of the last (most expensive) unit committed.
Question 7: What does the 'load factor' of an electricity customer indicate?
- The ratio of peak demand to installed generation capacity
- The ratio of average demand to peak demand over a billing period (Correct answer)
- The percentage of renewable energy in the customer's supply mix
- The number of hours per year the customer operates at full capacity
Correct answer: The ratio of average demand to peak demand over a billing period
Load factor (average demand ÷ peak demand) reveals how consistently a customer uses electricity — high load factors generally yield better supply rates.
CEP Energy Market Fundamentals 2
What does the term 'basis' refer to in energy markets?