Aug 2 (Reuters) - Talen Energy Corporation ( TLN ) said

on Friday it would work with utility companies, PJM

Interconnection, and PPL Electric Utilities Corporation to

respond quickly to a question from the Federal Energy Regulatory

Commission.

FERC, the federal agency that oversees interstate power

transmission, sent a letter earlier on Friday stating that PJM's

request to change an agreement involving the utility,

Susquehanna Nuclear, and PPL Electric Utilities is incomplete.

The regulator said it would need more information before it

can process this request.

Talen, which owns and operates Susquehanna Nuclear, said it

expects the commission to find the amendments will "not

negatively impact system-wide reliability."