California Solar Initiative. Content. Overview of CSI What’s New CSI Status Update CSI Field Inspection Process CSI Metering CSI Application Process. Overview of CSI. Pacific Gas and Electric Company. Pacific Gas and Electric Company. $946M. $946M. Southern California Edison Company.
Content • Overview of CSI • What’s New • CSI Status Update • CSI Field Inspection Process • CSI Metering • CSI Application Process
Pacific Gas and Electric Company Pacific Gas and Electric Company $946M $946M Southern California Edison Company Southern California Edison Company $996M $996M California Center for Sustainable Energy $223M $223M CSI Budget • Total authorized CPUC CSI budget is $2.165 Billion • Funded by electric distribution rates • Regional CSI incentive budgets are as follows:
CSI Eligible Customers • Eligible customer projects must be within the service territory of and must receive retail level electric service from: • Pacific Gas and Electric (PG&E) • Southern California Edison (SCE) • San Diego Gas & Electric (SDG&E) • The California Center for Sustainable Energy administers the CSI in the SDG&E Service Territory • Municipal electric utility customers are not eligible to receive incentives • Municipal electric utilities are required to have a CSI solar program for their customers starting in 2008
CSI Eligible Projects • Residential Retrofit Projects1 • Non-Residential Retrofit and New Construction Projects • Minimum System Size of 1 kW • Maximum System Size of 5 MW • Incentives will be capped to the First MW • 1 MW under SGIP and 1 MW under CSI allowed • Future system expansions allowed • Installed capacity at site may not exceed actual energy consumed during previous 12 months • Maximum System Capacity = 12-months previous kWh usage / (0.18 x 8760 hr/year) • New Construction and Future Load Growth must be substantiated 1) New construction residential projects administered by the CEC under the New Solar Homes Partnership Program
CSI Incentive Structure As of January 1, 2007, the CSI program pays: • Expected Performance-Based Buydown (EPBB) incentives for PV projects < 100 kW • EPBB is an up-front incentive based on an estimate of the system's future performance • EPBB combines the benefits of rewarding PV System performance with the administrative simplicity of a one-time incentive paid at the time of project installation • Performance-Based Incentives (PBI) for PV projects > 100 kW • Monthly payments based on measured kWh output of solar power produced over a 5-year period
Expected Performance Based Buydown (EPBB) • Applies to Systems < 100 kW • Paid upfront, based on the following incentive rates (based on current incentives reserved) • EPBB Incentive = EPBB Incentive Rate x System Rating x Design Factor • Design Factor = Simulated solar output of proposed system/Simulated solar output for optimal system • Takes into consideration location, orientation, tilt and shading effects on system performance • EPBB Design Factor Tool: www.csi-epbb.com
Performance Based Incentives (PBI) • Applies to systems ≥100 kW • Paid monthly over a 5-year period, based on the following incentive rates: • PBI Incentive = PBI Incentive Rate x Measured PV System Energy Output • Reservation Amount will vary by capacity factor used • Reservation Amount = PBI Incentive Rate x .18 x 8760 x CSI System Size x 5 year (fixed systems) • Reservation Amount = PBI Incentive Rate x .22 x 8760 x CSI System Size x 5 year (tracking systems) • Customers may opt into PBI for systems < 100 kW
CSI Incentive Rates Incentive structure: • Rebates automatically decline based upon reservations reserved • Higher rebates for non-taxable entities
What’s New • Recent TOU decision • PAs to file Advice Letter for proposed CSI Handbook changes • CSI Program Forum held on June 29th in Irwindale (Southern California) • CSI Program Administrators hired technical experts to assess incentives and filed CSI Handbook changes on June 1, 2007 • Beta testing for Statewide Database began in June
Update on Time of Use (TOU) Rate Requirements • TOU tariffs are now optional for CSI applicants not otherwise required to take service on TOU tariffs, until the CPUC develops requirements and approves new PG&E TOU tariffs. • Customers who have already applied for CSI rebates have the option of remaining on their TOU rate schedule or returning to their prior electricity rate schedule or an otherwise applicable flat rate schedule for which they qualify. • If customers were required to switch to a TOU rate schedule in order to receive their CSI rebate, they may be eligible to receive a credit for any difference between their bill under the TOU rate schedule and a qualifying flat rate schedule. • See the Clean Power Estimator at http://www.consumerenergycenter.org/renewables/estimator/index.html
PAs Advice Letter - Procedures • PAs intend to file an Advice Letter with the CPUC to recommend changes to CSI Handbook • Proposed changes are not effective until Advice Letter is approved • Regulatory procedure allows for a Protest Period
Proposed Handbook Changes • System Description Worksheet: Eliminate this requirement for all residential systems and non-residential systems under 10 kW • Proof of Insurance for Installers: Eliminate this requirement within the CSI Program • Application for Interconnection: Eliminate the requirement to submit Interconnection application at the same time as the rebate application for all residential systems and non-residential systems under 10 kW (2-Step Applications) • Electrical System Sizing Documentation: Eliminate load justification requirement for systems less than 5 kW • Advanced Reservation prior to Interconnection: Eliminate the Handbook requirement to have an approved reservation prior to interconnection.
Proposed Handbook Changes • Self-Installations – Revise conflicting language in handbook to allow for self-installations to be eligible for CSI incentives • Copy of Executed PMRS Contract or Cost Cap Exemption Documentation – Add to final paperwork (Incentive Claim Form package) • Correct Minor Typos – Please identify any you have seen! • Change SDREO to CCSE Changes due to Regulatory Decisions • Update MW Trigger Section on how to allocate MWs that have dropped out • Updated language on EPBB calculator • Update TOU Section to reflect new changes
Statewide Trigger Point Tracker http://www.csi-trigger.com
CSI Inspections • Inspections will: • Verify that equipment nameplates and counts match those submitted on the Incentive Claim Form • Include measurements to verify that system tilt, orientation, and shading values are consistent with values used in the EPBB calculator and submitted along with the Incentive Claim Form • Verify that system is operational and output is reasonable for conditions at time of inspection
CSI Inspections • Coordinating Inspections • Inspector will require physical access to the equipment to perform inspection. • Applicant is not required to attend inspection, but it is recommended. • We prefer that the applicant coordinate with customer to provide necessary access to inspectors. • Upon request by the applicant, the inspector will coordinate access directly with the customer.
Equipment Verification • Module verification • If PV modules are mounted such that nameplates aren’t visible, we will request invoice to verify make and model. • Number of modules installed is verified by the inspector on-site. • Inverter verification • Inspector needs to verify make, model, and number of inverters installed and that PV system is operational.
Installation Verification • Verify Inputs • Inspector will measure the tilt, azimuth and shading of array(s) on site and check against submitted values. • Correct Inputs • The EPBB design factor will be recalculated if measured values differ significantly from submitted values. • Approve Inputs • If submitted values are reasonable compared to measured values then the inspector will approve inputs as submitted.
Common Mistakes • Azimuth • Not corrected for magnetic declination • Compass used near metal or magnet • Bad compass • Shading • Misunderstanding of “minimal shading” • Incorrect shading analysis
Measuring Azimuth • Azimuth • Lookup magnetic declination for location (http://www.ngdc.noaa.gov/seg/geomag/jsp/Declination.jsp) • Stay 10-15 ft. away from metal or magnets • Add magnetic declination to compass reading • Check reading against tools like GoogleEarth
Magnetic Declination Correction http://www.ngdc.noaa.gov/seg/geomag/icons/case1.gif
Measuring Shading • Minimal shading requires at least 2:1 distance to height ratio (equal to 26.6° altitude angle) of any object between 80° to 280° orientation. • Systems without minimal shading must submit monthly solar access for site. • Solar access can be measured with tools such as the Solar Pathfinder or Solmetric SunEye.
10 Feet 40 Feet Minimal Shading NO SHADE IMPACT REQUIRED Object Height is 10 feet above the array. 2x Height = 20 feet Distance = 40 feet 2x Height < Distance = Minimal Shading
15 Feet 25 Feet Not Minimal Shading SHADE IMPACT REQUIRED Object Height is 15 feet above the array. 2x Height = 30 feet Distance = 25 feet 2x Height > Distance = Not Minimal Shading
Case Study 3 2 9 panels tilted S 4 1 6 5 21 panels S 7 8 Neighbor’s tree
Compile Data Reading 1 2 3 4 5 6 7 8 • Jan 65 100 100 90 90 100 100 70 • Feb 70 100 100 91 91 100 100 73 • Mar 74 100 100 92 93 100 100 75 • Apr 77 100 100 93 94 100 100 77 • May 80 100 100 95 95 100 100 80 • Jun 85 100 100 96 96 100 100 83 • Jul 90 100 100 97 97 100 100 85 • Aug 85 100 100 98 98 100 100 86 • Sep 80 100 100 96 95 100 100 83 • Oct 75 100 100 93 93 100 100 79 • Nov 70 100 100 92 91 100 100 76 • Dec 65 100 100 90 90 100 100 72 % of Solar Availability per month
Calculate Average Jan 89 Jan 90 Feb 90 Feb 91 Mar 92 Mar 92 Apr 93 Apr 93 May 94 May 94 June 95 June 95 July 97 July 96 Aug 96 Aug 96 Sept 94 Sept 95 Oct 92 Oct 93 Nov 91 Nov 92 Dec 89 Dec 91 Array 1 Reads 1-4 Array 2 Reads 5-8
Calculate Impact Run EPBB tool per Array Array 1 – 9 panels Array 2 – 21 panels
Shade: EPBB vs PBI • PBI • Incentive based on kWh generated • Winter shade matters • Entire year’s system availability determines incentive • EPBB • Only summer availability determines incentive • Much more forgiving of total shade impact
Shading Measurement Tips • Account for tilt & azimuth in shading analysis software (Solar Pathfinder Assistant & Solmetric SunEye). This will affect results. • Communicate tool and method used to inspector if possible.
Inspection Results • Inspector will communicate any discrepancies found with applicant attending inspection. • Inspector will recalculate EPBB design factor if necessary and submit with report. • Inspection report is submitted to the Program Administrator by the inspector. • Program Administrator will contact applicant if discrepancies were found.
Meter Requirements • All Systems Must Have Metering & Performance Monitoring • Performance meters are in addition to utility revenue meters • Must have 5-yrs of independent performance monitoring • Subject to certain exemptions (See Table 16 in CSI Handbook) • Cost Responsibility & Caps • Customer must bear all costs for performance meters & for 5 years of performance monitoring (incl. data communication) • Costs not to exceed 1% of system costs for 30kW and below, 0.5% above 30kW (EPBB Only - See Table 16 for exemptions) • EPBB vs. PBI Accuracy Requirements • EPBB < 10 kW: +/- 5% accurate (inverter meters allowed) • EPBB > 10 kW & AllPBI: +/- 2% accurate
Meter Requirements • Additional 2% Meter Requirements • Must have Certificate from manufacturer verifying accuracy • Must be capable of recording 15-minute interval data • Must have remote communication capability (except EPBB systems < 20 kW that are unable to meet cost cap) • All Meters Must Be Listed by CEC • CEC listing must state that the meter meets the 2% requirement to be eligible for PBI program • Meter Warranty Requirements • 2007: One-Year Warranty • 2008+: Five-Year Warranty
CSI Handbook Refer to CSI Handbook, Section 2.8 and Appendix B
PMRS Documentation • Customers are required to submit proof that they have contracted with an eligible Performance Monitoring & Reporting Service (PMRS) provider • PMRS provider must be listed on CEC web site • PMRS providers must not be “affiliated with the incentive recipient, or any solar manufacturer or installer” (D.06-08-028, Ordering Paragraph 17, page 124) • EPBB customers < 20 kW requesting an exemption per Table 16 must submit evidence that they cannot meet the cost cap • For now, we just need an estimate from an eligible PMRS provider showing the cost exceeds the cap • The Program Administrators are working on an exemption form for use in the near future
Meter Data Requirements Two Separate Data Streams: • Performance Data to Customer • Daily, hourly or “real-time” performance data to customer • Data maintained by PMRS provider per Handbook requirements • Only PMRS providers listed with the CEC currently eligible • PBI Data to Program Administrator • Monthly kWh produced &15-min. interval data (kW) • Submitted via approved “Performance Data Provider” (PDP) • Program Administrators developing PDP requirements • Electronic Data Interchange (EDI) 867 format (proposed) • Eligible PDPs may include PMRS providers, PG&E or 3rd parties such as Meter Data Management Agents (MDMAs)
Meter Installation Options • Customers may contract with utility or qualified 3rd party providers • Can use any qualified provider for the meter installation, so long as the meter is CEC-approved & installed to NEC standards and applicable local codes • We recommend using experienced meter installers for safety & reliability reasons. (See CPUC web site for certified Meter Service Providers) • Customer responsible for installing meter socket for utility-provided meters • Customers should decide early in the process who will provide meter, PBI data & PMRS service to avoid delays, minimize cost and ensure compatibility
Meter Requirements Update • Petition to Modify submitted on March 5th • Submitted by PG&E, SDREO (now CCSE), PV Now, CalSEIA, Vote Solar Initiative, & SMA America • If approved, Petition would modify CSI as follows: • All EPBB customers can use +/- 5% (inverter) meters • Remove cost cap for all PBI customers & confirm 2% meter requirement for all PBI, regardless of size • Remove requirement for PMRS providers to be unaffiliated with solar vendors & installers
Meter Requirements Update(Cont’d) • CPUC issued a Proposed Decision (PD) on June 26th that would implement the first two issues • CPUC to issue separate PD on the PMRS issue at a later date • CPUC expected to act on first PD at July 26th Commission meeting • We are now in the 30-day comment period • The Commission could adopt the PD as is, modify it, or reject it • PG&E to file comments in support of PD • Until/unless CPUC adopts PD, current meter requirements apply
Meter & PMRS Links • Eligible Equipment, MSP’s, MDMA’s, and PMRS Listings • Eligible Meters – Listed on CEC website: http://www.consumerenergycenter.org/cgi-bin/eligible_meters.cgi • MSP – Listing on CPUC website: http://www.cpuc.ca.gov/static/energy/electric/electric+markets/metering/msps.htm • MDMA – Listed on CPUC website: http://www.cpuc.ca.gov/static/energy/electric/electric+markets/metering/mdmas.htm • PMRS – Listed on CEC website: http://www.consumerenergycenter.org/erprebate/monitors+rsp.html