Electric Reliability Council of Texas (ERCOT)

Incumbent monopolists won't command high premiums

if newcomers can rebuild capacity from scratch at a cheaper price.

At first glance, many of the nation's regional markets for wholesale electric generation appear monopolistic. In some of the 18 regional power markets we have identified, the leading companies account for 75 to 90 percent of the area's generating assets. In other markets, where the concentration problem does not yet seem as pressing, mergers and acquisitions threaten to raise levels of concentration of ownership in generation.

The Texas PUC has approved a plan creating the nation's first independent system operator (ISO) from the Electric Reliability Council of Texas (ERCOT). The ISO will be governed by an 18-member board, with three members each from IOUs, municipal utilities, electric co-ops and river authorities, transmission-dependent utilities, IPPs, and power marketers.

A key part of the ISO plan is an electronic transmission information network (ETIN), which ensures equal access to transmission system information, such as available transmission capacity, product offerings, and prices.

The Oklahoma Municipal Power Authority (OMPA) and the Public Utilities Board (PUB) of the City of Brownsville, TX, have announced their intent to form a municipal power pool spanning four states. OMPA is a full and partial requirements wholesale supplier to 35 municipal electric systems in Oklahoma. PUB owns coal- and gas-fired generation plants. The two entities offer a combined supply resource of about 800 megawatts, but rely on the transmission system of Central and South West (CSW).

A new group, the Independent Power Suppliers of ERCOT (IPSE), has formed to speak for nonutility power suppliers that operate within the Electric Reliability Council of Texas (ERCOT). The stated mission of IPSE is "to promote the reliable operation of power systems within ERCOT, in which a competitive, environmentally responsible and profitable independent electric power industry can flourish." Membership is open to all nonutility generators (NUGs), cogenerators, and power marketers.

The Federal Energy Regulatory Commission (FERC) approved a final order requiring Texas Utilities Electric Co. (TU) and its affiliate, Southwestern Electric Service Co., to provide network transmission service to Tex-La Electric Cooperative of Texas Inc. (Docket No. ER94-1385-000). Network service allows multiple points of receipt and delivery at a single system rate. Tex-La, a customer of Texas Utilities and a bulk-power supplier for seven distribution cooperatives in Texas, is seeking to buy power from third parties and transmit the power over TU's transmission system.