According to a typical economic theory, prices are optimally determined in a fair and transparent market, and not by a political or academic body. In deregulation of electricity markets, one immediate concern with pricing is that incumbent electricity providers would undercut the prices of new entrants, preventing competition and perpetuating the existing monopoly of providers. Thus, the SB7 bill introduced a phase-in period during which a price floor would be established (for incumbent electricity companies) to prevent this predatory practice, allowing new market entrants to become established. New market entrants could charge a price below the price to beat, but incumbents could not. This period was to last from 2002 to January 1, 2007. As of 2007 Texas investor owned utility affiliates no longer have price to beat tariffs.
In this free market competing electricity retailers buy electricity wholesale from private power generators to sell at retail to around 85% of Texas residents. The partnership between generators and retailers is governed by the Electric Reliability Council of Texas, or ERCOT, which attempts to balance the power grid’s electricity supply and demand by purchasing small amounts of electricity at 15-minute intervals throughout the day.