Method for managing risk in markets related to commodities delivered over a network
View Patent ↗A system, method, software, and portfolios for managing risk in markets relating to a commodity delivered over a network are described, in which a market participant constructs portfolios of preferably liquid price risk instruments in proportions that eliminate the Spatial Price Risk for the market participant's underlying position. Techniques are also disclosed for constructing and evaluating new price risk instruments and other sets of positions, as well as identifying arbitrage opportunities in those markets. In particular, a “deltas vector” is calculated concerning a portfolio of future positions and derivative contracts, wherein the “deltas vector” is the partial derivative of the market participant's net market position taken with respect to the forward shadow prices λ of the network which depend upon congestion in the network. The “deltas vector” can then be used to simplify the valuation of a derivative contract, develop a hedging strategy, evaluate a hedging strategy with respect to congestion, identify a successful bidding strategy at auctions of derivative contracts, and determine an optimal position in a multi-settlement nodal market. Moreover, techniques are also described for evaluating the matrix of Power Transfer Distribution Factors and loss factors (comprising the A matrix) that are needed to estimate the “deltas vector”.
1. A method for managing risk in a market related to a commodity delivered over a network of one or more congestible lines, the market including at least one traded instrument, a locational derivative contract, and future shadow prices which depend on congestion in the one or more congestible lines, the method comprising the steps of:
a computer system identifying an equation for determining a fair market value of the locational derivative contract, wherein the fair market value is based, at least in part, on the future shadow prices to obtain a fair market value equation;
the computer system calculating a partial derivative of the fair market value equation with respect to the future shadow prices to obtain a calculated partial derivative; and
the computer system generating an indication of risk to congestion for the locational derivative contract based on the calculated partial derivative.
2. The method of claim 1 , wherein the indication of risk that is generated specifies whether the locational derivative contract is long, short or neutral to congestion in the one or more congestible lines.
3. The method of claim 1 , wherein the locational derivative contract is one of a Transmission Congestion Contract (“TCC”), TCC option with a zero strike price, TCC option with a non-zero strike price, portfolio of TCCs, portfolio of TCC options, seller's choice contracts, portfolios of seller's choice contracts, futures positions, options, portfolio of options, and portfolio of futures positions.
4. The method of claim 1 , wherein the locational derivative contract is a non-linear derivative contract.
5. The method of claim 4 , wherein the locational derivative contract is one of a seller's choice contract and an option.
6. The method according to claim 1 , wherein the step of identifying includes the steps of:
determining a payoff value of the locational derivative contract at a predetermined time;
determining a net trading gain of a position y in the at least one traded instrument, and
adding the payoff value and the net trading gain to generate the identified equation.
7. The method according to claim 1 , wherein the partial derivative is a vector δ and the future shadow prices are a vector λ having a same cardinality as δ, such that each element of δ, δ i ,corresponds to the calculated partial derivative of the fair market value equation with respect to a respective element of λ, λ i .
8. The method according to claim 1 , wherein the market is an inefficient market.
9. A method for optimizing a position, y, in a multi-settlement market related to a commodity delivered over a network of one or more congestible lines, the position, y, including taking forward positions at different nodes in the network which are settled against real-time spot prices, and the multi-settlement market including future shadow prices, λ F which depend on congestion in the one or more congestible lines and spot shadow prices λ S , the method comprising the steps of:
a computer system modeling a net trading gain of the position y as a summation δ′(λ S -λ F ) to obtain a modeled net trading gain;
the computer system optimizing the modeled net trading gain to identify the individual elements of δ, where δ′ represents the transpose of δ;
the computer system calculating the position y which satisfies δ=A′y, wherein A is a matrix representing the underlying physics of the network, and A′ represents the transpose of the matrix A, and
the computer system generating an indication of the position y.
10. The method of claim 9 , wherein λ F is considered to be a function of δ.