Overview of Net Energy Metering in Hawaii - Heco.com

MECO, HELCO, HECO SupportRenewable EnergyDemonstration ProjectsIntegrated Resources Plan (IRP)Renewable Portfolio Standard (RPS)Sun Power for Schools (SPS)Net Energy Metering (NEM)4

MAKING THE CONNECTIONWe’ve Come A Long Way• Code Issues• Building Codes• Local Covenants• Electrical Codes• Utility Issues• Power Quality• Metering Agreements• Safety and Reliability5

What is Net Energy Metering?Allows eligible customers to generate theirown electricity & export any surplus electricityto the utilityCustomers receive full retail credit for anysurplus electricityAnnual reconciliation6

What is Net Energy Metering?KWH from electric utility- KWH to electric utilityNet KWHNote: Minimum customer charge applies7

Is Net Energy Metering New?39 states, including Hawaii have NEM*Arizona 1 st state to adopt (1981)Hawaii– 2001: adopted NEM w/10 kW max.– 2004: increased cap to 50 kW– 2005:allows annual reconciliationauthorizes PUC to make changes– 2006: PUC opens NEM docket* Source: www.dsireusa.org as of July 20058

Statutory Purpose of NEMIntended primarily to offsetall or part of customer’sown electricity use9

NEM Status2001-2005 Jan. - Aug. 2006Systems KW Systems KWHECO 13 25 24 116HELCO 25 110 23 157MECO 34 144 24 286TOTAL 72 279 71 55912

NEM SystemsInstalled by licensed electrical contractorElectrical permit issued by the CountyComply with NEM Agreement interconnectionrequirements13

NEM PROCESSTwo separate processes– NEM ≤ 1O KW– NEM > 1O ≤ 50 KWAll NEM systems will receive electronic metersMeters are bi-directionalRecord– Electricity exported to utility– Electricity imported from utility14

NEM ≤ 10 kWAgreement SignedafterSystem Is Installed

NEM Agreement (10 kW or less)Simplified interconnection agreement– applicant information– generating facility information– certification by licensed electrical contractor– customer-generator signatureSubmittals– completed agreement– Notice of Electrical Inspection– single line diagram16

Residential 5 kW NEM17

NEM > 1O ≤ 50 kWAgreement SignedbeforeSystem Is Installed

NEM > 1OkW ≤ 50kW AgreementComprehensive interconnection agreementExhibits (3)– Exhibit A: Description of Facility (5 pages)– Exhibit B: Facility Owned by Customer-Generatoror Third Party Owner (5 pages)– Exhibit C: Interconnection Facilities Owned by theCompany (2 pages)Diagrams– SLD – single-line line diagram– 3-line diagram (only if ≥ 30 kW)19

Commercial 45 kW NEM20

45 kW Power Conditioning21

Appendix III:NEM > 1O ≤ 50 KW ProcessStep1 Customer provided Appendices II & III and Rule 14H2 Customer submits completed Exhibit A, Appendix II3 Company performs technical review (expedited forPV systems)4 Customer & Company work together to finalizesystem design and Customer submits completedExhibit B5 Company completes Exhibit C6 Customer and Company sign the NEM andInterconnection Agreement22

What happens afteragreement is signed?Customer receives a copy executed agreementBi-directional meter installedRate schedule changed (example: R to RNM)Customer receives monthly NEM billingstatement23

Net Energy Metering ContactsHECO: Ron Richmond (543-4784)4784)HELCO:– East Hawaii – Chengwu Chen (969-0358)– West Hawaii - Laura Rogers (327-0519)MECO: Ray Okazaki (871-2340)www.meco.com>Renewable Energy>Net Energy Metering24