FortisBC Inc. (FortisBC) Application for a Certificate of Public ...

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Response:
FortisBC Inc. (FortisBC or the Company)
Application for a Certificate of Public Convenience and Necessity
for the Advanced Metering Infrastructure Project
Response to British Columbia Utilities Commission (BCUC or the Commission)
Information Request (IR) No. 1
Submission Date:
October 5, 2012
Page 253
107.3 Please provide the peak: off-peak residential energy price ratio assumed in the
Future Program Study by Navigant (for example, 2:1, 3:1) for the purposes of
estimating customer response to FortisBC TOU rates.
Please see the response to BCUC IR1 Q107.2.2 and Q109.1.1. No on-peak/off-peak pricing
was developed or assumed by Navigant for the purposes of the study. Assumptions on the
TOU impact on conservation and response were drawn from the BC Hydro Conservation
Research Initiative.
Response:
107.3.1 Are these assumptions reasonably consistent with the peak: offpeak
differences expected in the Midgard BC Wholesale Market
Energy Curve? Please explain why or why not.
This comparison cannot be made for the reason stated in the response to BCUC 107.3.
Response:
107.4 Please estimate how much money a residential customer with average
consumption volume would save in one month if they shifted 10 percent of their
consumption from peak (HLH) to off-peak periods (LLH) in 2012.
In undertaking this analysis, please assume the customer is on a FortisBC
residential TOU tariff where the peak: off-peak ¢ /kWh difference is set equal to
the peak: off-peak ¢ /kWh difference forecast in the Midgard BC Wholesale
Market Energy Curve. Please state all assumptions made.
In order to respond to the question, FortisBC has made the following assumptions:
• Based on load and customer count forecasts contained in its 2012 – 2013 Revenue
Requirements Application, the average residential customer will use 1,040 kwh each
month;
• Residential customers will consume 40% of their power in dual peak (morning and
evening) on-peak periods; and