Major problems have not been reported in Texas, however they have little practical experience with the network interconnection using the rules.
Standards have been in place since January 2001.
No complaints have been reported to the Public Utility Commission of Texas.1
ONCOR has processed 19 applications (2001-2002).2 This represents about 80% of all applications in Texas.
Only one application was for a network interconnection. That project was an 8MW (4x2MW recip engine) back-up power system installed in a 4kV spot network.
The network interconnection aspects of the standard do not appear to be a concern to ONCOR. The rules allow, “A utility may reject applications for a distributed generation facility under this section if the utility can demonstrate specific reliability or safety reasons why the distributed generation should not be interconnected at the requested site. However, in such cases the utility shall work with the customer to attempt to resolve such problems to their mutual satisfaction.”
Centerpoint Energy has not received any applications for network interconnection.3
Telephone Interview with Tony Marciano, Public Utility Commission of Texas, Electric Division January 7, 2003
Telephone Interview with Ken Brunkenhoefer, ONCOR Electric Delivery Company January 7, 2003
Telephone Interview with Ben Gazara, Centerpoint Energy, January 8, 2003
Approaches from Other States and Jurisdictions Texas