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o: S t e v e H ill 03 / 21 / 2012 04 : 00 PM

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S t e v e H ill 03 / 16 / 2012 09 : 28 : 50 AM As r eque s t ed b y EPA

, PPE C i s p r o v i d i ng t he a t...

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e v e H ill < S H ill @ s i e rr

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D a t e: 03 /

16 / 2012 09 : 28 AM

S ub j e c t: U s e o f c o m b i ned cyc l e f o r pea k i ng s e r

v i c e f o r PPEC

### A s r e qu e s t e d b y E P A

, PP E C i s p r o v i d i n g t h e a tt ac h e d l e tt e r f r o m K i e w it P o w e r

, w h i c h p r o v i d e s a

c o m p a r i s o n b e t w ee n PP E C ’ s p r o p o s e d t u r b i n e c o n f i gu r a t i o n a n d a c o m

b i n e d c y c l e f

ac ili t y o f

c o m p a r a b l e ca p ac i t y . T h i s l e tt e r i s p r o v i d e d a s a n a dd it i o n t o t h e r ec o r d s upp o r t i n g PP E C ’ s PS D

p e r mit a pp li ca t i o n.

P l ea s e l e t m

e k n o w i f y o u h a v e a n y qu e s t i o n s.

S t e v e H ill [ a tt ac h m

e n t " K i e w i t P o w e r

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