Price Risk Management and Hedging Instruments
Hedging and price risk
Hedging manages exposure, not the underlying business. Start with an exposure map: volume by month, price reference, delivery point, and index. Instruments include forwards and futures, fixed-for-floating swaps, caps, floors, collars, basis swaps, and weather derivatives. A fixed-price forward locks price but not volume; if load falls, the buyer can be left with excess contracted energy. A cap pays the buyer when the index exceeds a strike, for an upfront premium; a collar buys a cap and sells a floor to reduce premium, accepting a lower benefit if prices fall. Options have delta, gamma, and time value; comparing them on premium alone ignores payoff shape. Hedging also leaves basis risk when the contract settles at a different hub than the physical load, and counterparty risk when a supplier fails. Measure hedge ratio, VaR, stress loss, liquidity, and collateral calls. Avoid overhedging beyond forecast load and underhedging while claiming budget certainty.
Worked example: 10,000 MWh exposure; a $50/MWh cap costs $2/MWh, or $20,000. If the index averages $65/MWh, the cap pays $15/MWh × 10,000 = $150,000, netting $130,000 after premium. If the index averages $45/MWh, the cap expires and the net cost is the $20,000 premium. Rule of thumb: hedge the forecast volume you can defend, layer tranches across time, and state the residual risks-volume, basis, liquidity, and counterparty-in every hedge proposal.