Capacity Charges & Load Shedding July 28, 2015 Capacity = Charge kW Demand You control the demand Capacity * Price Price set by ISONew England Capacity Prices Increasing Start Date Current 6/1/2015 6/1/2016 6/1/2017 6/1/2018 NEMA Capacity Price ($/kW-Month) $3.21 $3.43 $6.66 $15.00 $9.55 Rest of Region Capacity Price ($/kW-Month) $3.21 $3.43 $3.15 $7.025 $9.55 (Except SEMA and RI at $11.08) Capacity Prices are Increasing Dramatically N N N N N N N N N N N N N Zones N = NEMA S = SEMA W = WCMA U = Undetermined (boundary passes through community) Potential Impact Scenario 2015 Calculation Cost 1000 kW * 3.43 * 12 = $41,160 2016 – Business 1000 kW * 6.66 * 12 = $79,920 as usual 2016 – Load 500 kW * 6.66 *12 = $39,960 shedding 1,000 kW (or 1 MW) is an estimate of the demand that a municipality may have across its time-of-use accounts Audience Polls • Did your community load shed on 7/20? • If yes, in how many buildings did you load shed? 7/20 Peak Event Actual vs Estimated Load on 7/20/2015 Estimated Load from ISO 3 Day System Demand Forecast Table Actual Load Reported on ISO Real Time Graph Estimated Load Updated at 10am *Estimated Load is graphed at the mid-point of a given hour. E.g. If 3-4 PM was estimated at 24,050 MW, that load is graphed at the point of 3:30 PM. 25000 24500 24,328 MW At 4:50 PM 24000 23500 MW 23000 22500 22000 21500 21000 20500 20000 9:30 10:00 10:30 11:00 11:30 12:00 12:30 1:00 1:30 2:00 2:30 3:00 3:30 4:00 4:30 4:50 5:00 5:30 6:00 6:30 7:00 7:30 AM AM AM AM AM PM PM PM PM PM PM PM PM PM PM PM PM PM PM PM PM PM Scenario Calculation Cost 2016 – Business as usual 600 kW * 6.66 * 12 = $47,952 2016 – Load shedding 223 kW * 6.66 *12 = $17,822 Real-Time Tracking Tools • The estimate on the 3-Day Capacity Forecast is updated at 10 am www.iso-ne.com Real-Time Tracking Tools • Step 1 – www.iso-ne.com Real-Time Tracking Tools • Step 2 – Expand graph Real-Time Tracking Tools • Step 3 – Mouse over Updated Risk Thresholds • HIGHLY LIKELY: Season Peak or Higher • THINK!: Within 2% of Season Peak • UNLIKELY: Out of 2% range *One exception: Peak in 2007 was 6/10 Updated Risk Thresholds As of 7/28/2015: • HIGHLY LIKELY: 24,300 MW • THINK!: >23,800 MW • UNLIKELY: <23,800 MW Discussion Communication Strategy • Communication strategy • Start and end times for the load shed? • What measures were implemented? • Challenges? • How are you tracking the impact? How to Get Data • One-time request: free once per account per year • Subscription to Energy Profiler Online tool • Eversource: $161 per account per year • National Grid: $154 per account per year, $76 per account thereafter • Install a pulse meter interface and connect with your EMS system • Eversource: $207 • National Grid: $167 How to Get Data • Talk with your utility account executive or energy efficiency rep if interested in pursuing any of the options below. • To see the cost for accessing data via the Energy Profiler Online subscription go to: • Eversource: https://www.eversource.com/Content/docs/default-source/ratestariffs/151.pdf?sfvrsn=2 • National Grid: https://www.nationalgridus.com/non_html/Optional_Int_Data_01.01.10.pdf • To see the cost for installing a pulse meter-interface see Option #2 at: • Eversource: https://www.eversource.com/Content/docs/default-source/ratestariffs/152.pdf?sfvrsn=2 • National Grid: https://www.nationalgridus.com/non_html/Opt.%20Enhanced%20Metering_01. 01.10.pdf • *Just remember you will still need a quote to pay for all the integration with your EMS system. EnerNOC or others may also offer pricing for real-time monitoring services.