The following examples illustrate the factors to consider in determining asset groupings for power plants.
EXAMPLE UP 12-4
Determining the asset group for a group of power plants—interrelated operations
Ivy Power Producers owns numerous power plants located in the midwestern and northeastern United States, including nuclear, natural gas, renewable, and coal plants. The facilities are located in five independently operated control areas.
The plants in each control area are managed as a group of assets, including common hedging strategies, budgeting, dispatch decisions, and fuel management. Each of the five independently operated control areas conducts an annual auction for capacity. IPP bids the output from its plants into the annual capacity auctions on a portfolio basis for each control area. In this process, IPP includes a cushion/margin within its bid in a control area (due to severe penalties for failure to provide capacity under contract). Dispatch decisions are made based on multiple factors as follows:
- Economic dispatch — plants are operated based on the lowest costs taking into account current fuel prices and expected load (there is a cost to starting up individual plants)
- Operational needs — certain plants can be ramped up and down quickly to respond to fluctuations in demand while others are typically operated as base load units (operated continuously at a consistent level of output)
- Reliability — certain plants are needed to ensure the stability of the grid and to provide power where it is needed
As a result, certain plants operate infrequently and have minimal cash flows on a stand-alone basis. IPP does not measure or allocate revenues to any individual plant. Instead, revenues are recorded and performance is evaluated at the portfolio level for each control area.
What should IPP consider to be the asset groups?
Analysis
Based on the way the plants are managed and operated (i.e., for each control area), and the measurement and allocation of revenue on a control area basis, there would be five asset groups, composed of the plants in each control area.
EXAMPLE UP 12-5
Determining the asset group for a group of power plants—plant-specific contract
Assume the same facts as in Example UP 12-4, except IPP has one renewable plant, the output of which is sold entirely under contract to Rosemary Electric & Gas Company, a regulated utility located in one of IPP’s control areas. The plant is in a remote location of the control area and IPP does not operate the plant as part of the overall dispatch of the system.
What should IPP consider to be the asset groups?
Analysis
Although the specific plant is located in the same control area as other IPP plants, it is directly contracted to a third party and not operated in connection with the other plants or relied upon for purposes of system reliability. Therefore, the renewable plant should be a separate asset group.
EXAMPLE UP 12-6
Determining the asset group for a group of power plants—revenue interdependencies due to a contractual relationship
Ivy Power Producers owns five power plants in California. IPP has entered into a contract with the state to supply a specified amount of power and capacity, representing the majority of the output available from the five plants, to the state’s regulated utilities. Under the terms of the agreement, IPP is permitted to supply the power and capacity from any of its five power plants located in the state.
What should IPP consider to be the asset groups?
Analysis
The plants are operated under contract as a group. The revenues under the contract are interrelated and the cash flows from individual plants are not independent of each other. As a result, the five plants should be considered one asset group.