Perspectives | Forced Outage Insurance for Electric Utilities

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Forced Outage Insurance for Electric Utilities

Last year we published this piece to explain what then was a relatively new insurance product. The sudden collapse of Enron, we believe, brought to the forefront the counter-party credit risk exposures that are present in the use of knock-on power options and other derivative products available from commodities traders like Enron. We point out that forced outage protection, when underwritten by licensed insurance companies that are A.M. Best Rated, eliminates counter-party or credit risk exposure of these hedging techniques.

In the wholesale market the price per megawatt of electricity can "spike," or go up sharply, and then fall just as quickly, especially during summer heat waves. If a utility is unable to meet the demand for electricity from its subscribers, it must go into the wholesale or spot market and buy extra power. Sometimes the reason the utility must do this is because one of its power stations has experienced a boiler & machinery type of accident.

After deregulation in 1998, utilities can no longer be certain what the price of each megawatt will be. While daily prices may trade between $20 and $50 for most of the summer, a three-day heat wave can boost demand above system capacity and prices can trade in the $200 to $500 per megawatt range. The utility that owns or controls power stations with more than enough capacity to satisfy its local load requirements can earn extra money by selling its unneeded megawatts in the spot market. On the other hand, when demand exceeds the utility’s capacity, it may have to buy megawatts in the spot market whatever the hourly price.

Conventional boiler & machinery insurance policies are of little use, mainly because there typically is 30-day waiting period. The economic loss is usually sustained within the first 48-hours of the forced outage.  For example:

Assume a 500 megawatt power station must shut down for two days due to a boiler & machinery accident during a heat wave. Concurrently, the price of replacement power in the spot market has spiked to as high as $1,000 per megawatt hour and the weighted average daily price per megawatt throughout the two-day period is $350/megawatt hour.

Replacement Power Loss = 32 hours times 500 megawatts times $350 per megawatt hour = $6.3 million

* Typically, the insurance policy only pays for the 16 on-peak hours of each day.

 

 

In June of 1998, an Ohio utility experienced forced outages as a result of the failure of a step up transformer at a large fossil fuel plant and tornado damage at a nuclear power station. Concurrently, the supply of available megawatts had dried up, largely due to surge in demand as a result of a heat wave. The situation was aggravated by transmission failures. Other regions were unable to dispatch megawatts to this utility and more than one broker defaulted on contracts to deliver power.

The absolute high price during this three-day period of market turmoil was $7,000/MWh. This investor-owned utility reportedly lost $50 million.

Throughout the summer of 1999, many of the North American Electric Reliability Council ("NERC") regions experienced heat wave-induced price volatility. Once again, generation and transmission outages flamed the fires. In the mid-west, MegawattDaily reported that an absolute high price of $3,000/megawatt hour was paid by one utility in late July.

Benefits of Forced Outage Insurance

Utility risk managers have four basic risk management techniques at their disposal.

  • Increase generating capacity and either buy or build power stations. Many utilities are building peaking plants that burn more expensive natural gas, but turn on only when needed to meet peak demand. Either way, It takes time to build and acquire power plants – this technique involves the investment of hundreds of millions of dollars.
  • Long-term supply contracts where utilities contract with merchant power plants and brokers to supply them the megawatts they need to meet their native demand. There is, however, a counterparty credit risk associated with this technique.
  • Multiple-trigger derivatives have been developed to treat forced outage risk. In a derivative transaction, there are two triggers: First, the utility must experience a forced outage. Second, the spot price must exceed an agreed upon strike price per megawatt hour. If both of these events occur at together, the derivative contract will pay an amount specified in the contract. In the experience of The Risk & Insurance Advisors, derivatives are very costly.
  • Forced outage insurance is an attractive risk treatment technique, mainly because it is a fixed and tax-deductible expense. In other words, it is not an investment whose value can change. In the experience of The Risk & Insurance Advisors, a forced outage insurance policy is less costly than a derivative contract. A third advantage of insurance is that there is no counterparty credit risk. True, insurance companies can become insolvent -- but the buyer can manage this by de-selecting insurers that do not have acceptable A.M. Best Ratings. Lastly, only licensed insurance companies can issue insurance policies -- and for multiple years.