20150818AVU to Staff 85.docx

AVISTA CORPORATION
RESPONSE TO REQUEST FOR INFORMATIONJURISDICTION:IDAHODATE PREPARED:08/12/2015CASE NO.:AVU-E-15-05/AVU-G-15-01WITNESS:Joseph MillerREQUESTER:IPUCRESPONDER:Joe MillerTYPE:Production RequestDEPARTMENT:State & Federal RegulationREQUEST NO.:Staff-085TELEPHONE:[phone]REQUEST:
Please quantify the benefits large customers receive from the capacity that smaller (less than four inches) main and distribution lines provide.RESPONSE:
Under the Company’s allocation of distribution mains only large customers (Schedules 131/132 & 146) who are directly connected to small main (2 inches or less) have their associated throughput and peak demand allocated to small mains.
There is currently one customer who takes service under Schedule 132. This customer is connected to small main and therefore has their entire throughput and peak demand assigned to the small main allocation.
There are currently five customers who take service under Schedule 146, of which none of these customers are directly connected to small main. Therefore all five of these Schedule 146 customers are excluded from the small main allocation.