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CSI-Thermal MF/Commercial Webinar

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  • Examples of eligible DHW end uses in include: apartment buildings with central DHW systems, convalescent homes, hotels and motels, military bachelor quarters, school dormitories with central DHW systems and prisons. Examples of eligible commercial end uses include: commercial laundries, Laundromats, restaurants, food processors, agricultural processes and car washes.
  • For example: A multi-family building owner owns two buildings on one site under one business. Each building has a natural gas-displacing solar water heating system that qualifies for a CSI-Thermal Program incentive. A separate incentive will be allowed for each building, as long as the combined total of the incentives do not exceed $500,000 for the site.
  • The ideal SOF is a value of 1.0 and the minimum SOF required to receive an incentive is 0.75. Azimuth directions are true orientation: 0° is True North and 180° is True South. Add magnetic declination to the compass magnetic orientation to get true orientation.

CSI-Thermal MF/Commercial Webinar CSI-Thermal MF/Commercial Webinar Presentation Transcript

  • California Solar Initiative Thermal Program Commercial/Multi-family updates
  • Purpose of this webinar
    • Provide information on the recently launched Commercial/Multi-family CSI-Thermal Program
    • Supplement workshop for participants that have already attended the CSI-Thermal Workshop
    • Will not cover single-family residential program information
    • Will not be a substitute for the CSI-Thermal Workshop
  • CSI THERMAL PROGRAM ELIGIBILITY REQUIREMENTS
    • Customer Class and Incentive Rate determined by Utility Rate Schedule
      • Residential Rate = Single-family residential
      • Commercial Rate = Commercial/Multi-family
      • Master Meter Rate = Commercial/Multi-family
    Customer Class
  • Customer Eligibility
    • Host Customer: The utility customer of record at the location where the SWH system will be located.
      • Natural Gas Water Heating Customers of PG&E, SDG&E, SCG
      • Electric Water Heating Customers of PG&E, SDG&E, SCE
    • *Propane Water Heating Customers are not eligible for a CSI-Thermal incentive
  • End Use Eligibility: Multi-family/Commercial
    • Multi-family/commercial applications, SWH applications must directly consume the solar heated potable water, as opposed to using the solar heated water as a medium to carry heat for some other end use. In multi-family/commercial applications, DHW and commercial end uses are eligible.
    • Combination Systems : Applicants must provide documentation proving DHW energy savings for combination systems. Incentives will only apply to the DHW portion of the load.
  • Technology Eligibility Not eligible systems for incentives Solar Water Heater Types Open Loop (Direct) Closed Loop (Indirect) Active Passive Direct Forced Circulation Thermosiphon Active Passive Indirect Forced Circulation Thermosiphon Integral Storage Collector (ICS) 5 3 4 1 2
  • Eligible Equipment
    • Solar collectors used in Multi-Family residential or Commercial SWH systems must have SRCC OG-100 Collector Certification
    • Components must be new and unused, except for the following components:
        • De-scaled copper piping
        • Collector racking (design stamped by Structural Engineer – to ensure the existing racks are appropriate for expected wind loading)
    • System installations must conform to manufacturer's specifications and all applicable codes and standards
    • All systems must have freeze and stagnation protection
      • SRCC = Solar Rating & Certification Corp (www.solar-rating.org)
  • Ineligible Systems (not eligible for incentives)
    • Pools, spas, space heating, space cooling
    • Non OG-100 collectors (e.g. concentrating solar collectors)
    • Systems that use propane as the back-up water heater
    • Direct Forced Circulation, Open Loop Thermosiphon systems, Closed Loop Recirculation Systems that re-circulate water in the collector loop
    • Combination systems will only receive an incentive for domestic hot water (DHW) energy savings (must clearly isolate DHW energy savings)
    • End uses that do not directly consume the solar heated water, but rather use the water as a medium to carry heat for some other end use
    • A SWH system that replaces a SWH system which previously received an incentive through the CSI-Thermal Program
    • Portable systems or systems that are not permanently installed.
    • A SWH system that received incentives from a utility Energy Efficiency program. (Note: The California Energy Commission’s Cash for Appliances Program is not a utility Energy Efficiency Program. Applicants may receive a CSI-Thermal incentive and a Cash for Appliances incentive.)
  • Site Definition
    • For multi-family/commercial projects, site is defined as:
    • The Host Customer’s premises, consisting of all the real property and apparatus employed in a single enterprise on an integral parcel of land undivided, excepting in the case of industrial, agricultural, oil field, resort enterprises, and public or quasi-public institutions divided by a dedicated street, highway or other public thoroughfare or railway.
    • Automobile parking lots constituting a part of and adjacent to a single enterprise may be separated by an alley from the remainder of the premises served.
    • Separate business enterprises or homes on a single parcel of land undivided by a highway, public road, and thoroughfare or railroad would be considered for purposes of CSI-Thermal Program as separate sites.
    • Note: The total incentives for multiple systems on one multi-family/commercial site cannot exceed the incentive cap per customer class ($500,00 for Natural Gas, $250,000 for Electric).
  • Site Definition Example #1 For Illustration Purposes Only Walnut Avenue Temple Street (public street) (public street) = Walnut Gardens Apartment Complex Not an industrial, agricultural, oil field, resort enterprises, and public or quasi-public institutions divided by a dedicated street, highway or other public thoroughfare or railway. 2131 Walnut Ave. 2129 Walnut Ave. 2127 Walnut Ave. 2125 Walnut Ave. 2123 Walnut Ave. 186 Temple Street 2121 Walnut Ave. 178 Temple Street Walnut Avenue Site #1 Site #2 Site #3 (public street)
  • Site Definition Example #2 For Illustration Purposes Only Walnut Avenue Temple Street (public street) (public street) = University of Hastings A public or quasi-public institutions divided by a dedicated street, highway or other public thoroughfare or railway. Building A Building B Building C Building D Building E Building F Building G Building H Walnut Avenue Site #1 (public street)
  • Updated : Surface Orientation Factor (SOF) NE = Not Eligible * Please reference the manufacturer instructions for collectors tilted at 0°
  • Energy Efficiency Requirements
    • Energy Efficiency Survey/Audit: required for all existing residential and commercial buildings or proof of Title 24 energy efficiency compliance
      • Must have been performed during the past three years
      • Acceptable surveys include online, telephone, or onsite audit provided by the utilities, Program Administrators, or a qualified independent vendor or consultant
  • Energy Efficiency Requirements
    • All accessible hot water piping must be insulated with a minimum of R2.6
    • If there is a recirculation loop, all accessible piping must be insulated with a minimum of R2.6
  • Metering Requirements
    • Purposes of Metering
    • 1) Measurement and Evaluation (M&E)
      • Program Selected, or
      • Opt-in
    • 2) Customer Performance Metering
      • System owner knowledge of system performance
      • Required for systems >30kWth
    • 3) True-up Payment
      • Required for systems>250kWth
    • Metering is encouraged for projects that are not required to have it
  • Metering: M&E
    • Program Selected M&E Program
    • Allows for evaluations of program performance and technology over time
    • Small sample ( < 250kWth) will be selected by PAs to be metered and paid by CSI-Thermal Program
    • Customer to be notified after payment of incentive
    • 100% of cost paid for by the CSI-Thermal Program
    • If selected, participants must agree to allow third party to install metering on their system
    • Systems selected for M&E Program may also require CPM monitoring requirements (systems >30kWth)
  • Metering: M&E
    • Opt-in M&E Program
    • Voluntary program which allows customers with any size system to participate in M&E program
    • CSI-Thermal Program will pay an additional $500 to contractor to offset costs
    • One-time payment provided upon completion of project and proof that metering requirements are met
  • Metering Equipment: M&E
    • Opt-In Program Measurement and Evaluation (M&E)
    • Required Equipment
      • • Systems with Two or More Tanks: For systems that have separate solar storage tank(s) and a back-up water heater, required equipment consists of a BTU meter, i.e., a flow meter on the cold water supply line, an appropriately located temperature sensor pair, and a calculator.
      • • One Tank Systems: For one-tank systems in which the storage tank is heated by both thermal solar and an auxiliary heat source, required equipment consists of a BTU meter, i.e., a flow meter on the cold water supply line, an appropriately placed temperature sensor pair, and a meter that measures the gas or electric contribution from the back-up water heater or boiler.
    • Equipment Accuracy Standard : Metering equipment must have a maximum permissible error +/- 2% for the flow meter throughout the meter’s specified flow range and +/- 0.25 °F for the temperature sensors.
    • Equipment Location : Metering equipment must be installed on the potable water side of the SWH system.
  • Metering: CPM
    • Customer Performance Monitoring (CPM)
    • Required for systems >30kWth
    • Paid by system owner
    • Contractor is responsible for maintenance of meter and communication system
    • CPM providers will provide SWH system performance, monitoring, and reporting services to the System Owner
      • The information provided allows the System Owner to maintain and evaluate system performance.
  • Metering Equipment: CPM
    • Customer Performance Monitoring (30 kWth<system ≤ 250 kWth)
    • Required Equipment: Required equipment consists of a BTU meter, i.e., a flow meter, a temperature sensor pair, and a calculator.
    • Equipment Accuracy Standards: Metering equipment must have a maximum permissible error +/- 2% for the flow meter at full flow and +/- 0.25° F for the temperature sensors.
    • Equipment Location: Metering equipment may be installed either on the collector loop or potable water side of the SWH system.
    • Communication Requirements: For a period of five years from start of operation, System Owner must have the means to determine if the system is operating. At a minimum, the CPM equipment must provide the quantity of solar energy delivered to the System Owner.
  • Metering: 70/30 True Up Payment
    • 70/30 True-Up Payment
    • Required on all systems > 250kWth (3850 sq ft of collector area)
    • Paid by system owner
    • Enable PAs to calculate true-up payment based on 12 month solar energy savings
    • Customers may opt-into M&E program
      • Will receive one-time $500 payment if data is provided for additional 4 years
  • Metering Equipment: 70/30 True Up
    • 70/30 True-Up Payment Customers (> 250 kW th )
    • Required Equipment
      • Systems with Two or More Tanks: For systems that have separate solar storage tank(s) and a back-up water heater, required equipment consists of a BTU meter, i.e., a flow meter on the cold water supply line, an appropriately located temperature sensor pair, and a calculator.
      • One Tank Systems: For one-tank systems in which the storage tank is heated by both thermal solar and an auxiliary heat source, required equipment consists of a BTU meter, i.e., a flow meter on the cold water supply line, an appropriately placed temperature sensor pair, and a meter that measures the gas or electric contribution from the back-up water heater or boiler.
    • Equipment Accuracy Standard: Equipment installed must have a maximum permissible error +/- 1% for the flow meter throughout the meter’s specified flow range and +/- 0.25° F for the temperature sensors.
    • Equipment Location: Metering equipment must be installed on the potable water side of the SWH system.
  • Metering Communication Requirements
    • Requires a Program Performance Data (PPD) provider for 70/30 True-up and all Opt-in M&E Metering
      • PPD provider is a service provider that monitors and reports energy delivery data from SWH systems to PA
      • PPD provider must be approved by PAs
      • Data privacy requires system owner to provide written consent to share data with third parties other than system owner and PAs
      • All monitoring equipment must have remote communication capability
      • Application found in Handbook and GoSolarCa website
  • Metering Communication Requirements
    • Data Reporting Requirements
    • PPD provider must monitor, trend, archive and report fields as required in Handbook Table 10
    • PPD provider must electronically submit performance data reports for each project through www.csithermal.com
    • Data must be recorded no less frequently than once every 15 minutes
    • Data must remotely be acquired and process no less than once per day
    • Data collection time period is five (5) years
      • PPD providers must retain data for five years from data collection end date
  • PPD Requirements Data Field 1-Tank System 2-Tank System Date Required Required Time Required Required Cumulative gallons of hot water consumed If Available If Available Solar BTUs delivered (2-tank system) N/A Required Total BTUs delivered (1-tank system) Required N/A Back-up gas consumption (therms) Required if gas N/A Back-up electric consumption (kWh) Required if electric N/A Cold water supply temperature (ºF) If Available If Available Solar hot water delivery temp. (ºF) If Available If Available Collector temperature (ºF) If Available If Available Pump 1 run time (24 hours a day) If Available If Available Pump 1 energy (kWh) If Available If Available Pump 2 run time (24 hours a day) If Available If Available Pump 2 energy (kWh) If Available If Available Pump 3 run time (24 hours a day) If Available If Available Pump 3 energy (kWh) If Available If Available Log data
    • Alarms
    If Available If Available
    • System messages
    If Available If Available
    • System events
    If Available If Available
    • Trends
    If Available If Available
  • Metering, Monitoring, and Communication Requirements Table 11 Summary of Performance Metering and Communication Requirements Incentive Structure System Size Metering Process Min. BTU Meter Accuracy Metering Equipment Location CPM Required PPD Required Who Bears Cost Single Lump-sum Rebate ≤ 30 kW th None N/A N/A N/A N/A N/A Single Lump-sum Rebate 30 kW th < system ≤ 250 kW th Customer Performance Monitoring ± 2% At full flow Collector loop or potable water side Yes No Paid for by System Owner 70/30 True-up > 250kW th 70/30 True-up payment ± 1% Throughout specified flow range Potable water side Yes Yes Paid for by System Owner Single Lump-sum Rebate ≤ 250 kW th Opt-in to M&E (not mandatory) ± 2% Throughout specified flow range Potable water side Required for systems >30 kW th Yes Contractor less $500 offset from PA
  • CSI THERMAL PROGRAM INCENTIVES & APPLICATION PROCESS
  • Commercial/Multi-family ≤ 250kWth
    • Lump Sum Payment
    • One-time payment
    • Based on estimated therm of kWh savings provided by the OG-100 Calculator
    • Paid after project is completed, approved, and inspected (if applicable)
  • Commercial/Multi-family > 250kWth
    • 70/30 True-Up Payment
    • Payment made in two parts:
      • 1) Commercial/Multi-family calculator estimates therm or kWh savings. PA pays 70 percent of that incentive after Incentive Claim and Inspection (if applicable) are approved
      • 2) System is then metered/monitored for 12 consecutive months. PA pays the true-up incentive amount by subtracting the initial 70 percent incentive payment from the final metered incentive amount.
      • *Program will pay no more than 110% of estimated incentive
  • 70/30 True-up Example
    • Actual energy savings less than expected
    • Estimated energy savings is 12,000 therms per year which equates to a $153,840 incentive ($12.82 x 12,000)
    • PA pays 70 percent of this amount, or $107,688 ($153,840x.70), once the project is completed, approved, and inspected (if applicable)
    • Customer’s energy savings is then measured for twelve months and is found to be 10,500 therms
    • Based on the actual metered energy delivered from the SWH system, the total incentive amount is $134,610 ( 10,500 therms x $12.82 per therm)
    • PA then pays the true-up incentive payment of $26,922 ($134,610 - $107,688 upfront lump sum incentive)
  • Natural Gas Step Customer Class $/ therm displaced Incentive Cap Budget Allocation PG&E Budget Allocation 1 Residential Commercial/Multifamily $12.82 $1,875 $500,000 $20 Million $30 Million 7.8 Million 11.7 Million 2 Residential Commercial/Multifamily $10.26 $1,500 $500,000 $18 Million $27 Million 7.02 Million 10.53 Million 3 Residential Commercial/Multifamily $7.69 $1,125 $500,000 $18 Million $27 Million 7.02 Million 10.53 Million 4 Residential Commercial/Multifamily $4.70 687.5 $500,000 $16 Million $24 Million 6.24 Million 9.36 Million
  • Electric Step Customer Class $/kWh displaced Max Incentive 1 Residential Comm/Multifamily 0.37 $1262.5 $250,000 2 Residential Commercial/Multifamily 0.30 $1,025 $250,000 3 Residential Commercial/Multifamily 0.22 $750 $250,000 4 Residential Commercial/Multifamily 0.14 $475 $250,000
  • Application Process
      • Application must be completed using the CSI-Thermal online database: www.csithermal.com
      • Eligible Contractor completes the application for the customer
      • Documents may be submitted online or by mail
      • Online documents must be in pdf format
      • Database demonstration will be provided today
  • Application Process: Commercial/Multi-family ≤ 30kWth
    • Two-Step Process
      • Reservation Request Form and supporting documentation submitted prior to installation
        • Incentive rate locked in upon approval of Reservation Request Form and supporting documentation (Confirmed Reservation)
        • Confirmed Reservation valid for 18 months
      • Incentive Claim Form and supporting documentation are submitted after the final signed-off building permit obtained
  • Two-Step Process Documentation
    • Step 1: Reservation Request
      • Reservation Request Form (RRF): Complete with signatures (originals not required)
      • Energy Efficiency Audit or Title 24 documentation: Must be within the past 3 years
      • Executed Agreement to purchase and install an eligible SWH System: Agreements must be legally binding and clearly spell out the scope of work, terms, price, and SWH system components to be installed.
      • Executed Alternative System Ownership Agreement: If System Owner is Different from Host Customer
      • Authorization to Receive Customer Information or Act on a Customer’s Behalf: Only required for SDG&E applicants
      • GPD justification: signed by P.E. if customer’s building type is not on the Maxium GPD Guideline Table, see Appendix D.
    • Step 2: Incentive Claim
      • Incentive Claim Form (ICF): Complete with signatures (originals not required)
      • Final Signed-off Building Permit: Must be after July 15, 2009
  • Application Process: Commercial/Multi-family > 30kWth
    • Three-Step Process
      • Reservation Request Form and supporting documentation submitted prior to installation
        • Incentive rate locked in upon approval of Reservation Request Form and supporting documentation submitted (Confirmed Reservation)
        • Application Fee required
        • Conditional Reservation
      • Proof of Project Milestone submitted which contains the executed contract.
        • Must be submitted within 60 calendar (90 for gov’t/non-prof) of the Conditional Reservation
        • Confirmed Reservation given upon approval
      • Incentive Claim Form and supporting documentation are submitted after the final signed-off building permit obtained
        • Must be submitted within 180 days of the Conditional Reservation
  • Three-Step Process Documentation
    • Step 1: Reservation Request
      • Reservation Request Form (RRF): Complete with signatures (originals not required)
      • Energy Efficiency Audit or Title 24 documentation: Must be within the past 3 years
      • Application Fee
      • Authorization to Receive Customer Information or Act on a Customer’s Behalf: Only required for SDG&E applicants
      • GPD justification: signed by P.E. if customer’s building type is not on the Maxium GPD Guideline Table, see Appendix D.
    • Step 2: Proof of Project Milestone
      • Executed Agreement to purchase and install an eligible SWH System: Agreements must be legally binding and clearly spell out the scope of work, terms, price, and SWH system components to be installed.
      • Executed Alternative System Ownership Agreement: If System Owner is Different from Host Customer
    • Step 3: Incentive Claim
      • Incentive Claim Form (ICF): Complete with signatures (originals not required)
      • Final Signed-off Building Permit: Must be after July 15, 2009
  • Application Fee
  • Application Fee Process
    • Must be submitted within 30 days of Reservation Request receipt
    • May be mailed at the same time Reservation Request documentation submitted
    • Payment must reference:
      • Host Customer Name
      • Project ID. e.g. SDG-000045
    • Invoice will be issued as part of the Reservation Request submittal
    • Failure to submit payment within 30 days will result in cancellation of application
  • Refund of Application Fee
    • Application fees will be refunded in the following cases:
    • Once systems are complete, the application fee will be refunded. No interest will be paid on refunded application fees.
    • If upon eligibility screening the project does not qualify for the CSI-Thermal Program. No interest will be paid on refunded application fees.
    • If the application fee was invoiced and a refund is due, PAs will pay the invoiced party.
    • If the application fee was not invoiced and a refund is due, PAs will pay the party that submitted the application fee.
  • Forfeit of Application Fee
    • Application fees will be forfeited in the following cases:
    • Once a conditional reservation is granted and the PA rejects the project for failing to meet adequate proof of project milestone or reservation expiration date requirements.
    • Once a confirmed reservation is granted and the project is cancelled or withdrawn by the Applicant and/or Host Customer.
    • If a project reservation is allowed to lapse and the project is later built under a new reservation, the application fee for the previous reservation will be forfeited.
    • If a confirmed reservation is granted and the incentive level has been reduced (due to Commission directive, moving to the next step, etc.), the Applicant and Host Customer will be notified and given 20 calendar days to submit request to withdraw their reservation request without losing their application fee. If the application is not withdrawn within the 20-day period, the Applicant will forfeit the application fee if it subsequently withdraws or fails to pursue its project.
    • All forfeited application fees will be re-allocated to the PAs CSI-Thermal Program budget
  • Application Process Summary
  • Complete Reservation Request Form
    • PA receives new Reservation Request for review:
    • Documentation complete =
      • Application Approved
      • Incentive amount locked in
      • Contractor and System Owner notified
  • Incomplete Reservation Request Form
    • PA receives new Reservation Request for review :
    • Documentation incomplete =
      • Application Suspended
      • Contractor notified of incomplete documentation
      • 20 days to submit corrections
      • Corrections not submitted within 20 days=Cancelled project; Contractor must re-submit application
      • Incentive amount NOT locked in until all documentation is complete
  • Complete Incentive Claim Form
    • PA receives new Incentive Claim for review:
    • Documentation complete =
      • Application Approved
      • Incentive amount locked in (Single-family residential)
      • Project is
        • a) processed for payment or
        • b) selected for inspection
      • Contractor and System Owner notified
  • Incomplete Incentive Claim Form
    • PA receives new Incentive Claim for review :
    • Documentation incomplete =
      • Application Suspended
      • Contractor notified of incomplete documentation
      • 20 days to submit corrections
      • Corrections not submitted within 20 days=Cancelled project; Contractor must re-submit application
  • Payment Process
    • Upon final approval of the Incentive Claim Form and passed onsite field inspection (if applicable), the PA will disburse the CSI-Thermal Program incentive payment.
    • Payment will be made to the Host Customer or a third party as indicated on the Incentive Claim Form, and will be mailed to the address provided.
  • CSI THERMAL PROGRAM TECHNICAL REQUIREMENTS & INSPECTION CHECKLIST
  • System Sizing: MF/Commercial
    • Multi-family (MF)/Commercial Projects – Annual average GPD is estimated based on the Maximum GPD Guideline Table (Appendix D).
    • SWH systems for the building types listed in Maximum GPD Guideline Table must be sized using the GPD value in this table for the appropriate building type. The GPD values in the table are maximum values. Systems may be sized using a lesser GPD assumption.
    • Building types not listed in the Maximum GPD Guideline Table must do one of the following:
      • Meter actual hot water consumption using an in-line water flow meter with accumulator for a minimum of 60 calendar days and adjust for seasonal variability. Hot water consumption calculation must be stamped by a P.E.
      • Meter natural gas or electric consumption at the water heater for a minimum of 60 days and adjust for seasonal variability. Water heater gas or electric meter consumption calculation must be stamped by a P.E.
    • Fluid collector square footage cannot exceed 1.25 times the GPD, or 1.85 times for air collectors.
    • Systems with two or more tanks must have a minimum of one gallon of storage per square foot of collector. One-tank systems must have a minimum of 1.25 gallons of storage per square foot of collector.
  • System Sizing: MF/Commercial
    • Building types not listed in the Maximum GPD Guideline Table must do one of the following:
      • Meter actual hot water consumption using an in-line water flow meter with accumulator for a minimum of 60 calendar days and adjust for seasonal variability. Hot water consumption calculation must be stamped by a P.E.
      • Meter natural gas or electric consumption at the water heater for a minimum of 60 days and adjust for seasonal variability. Water heater gas or electric meter consumption calculation must be stamped by a P.E.
    • Metered Data must be provided upon submittal of Reservation Request
  • System Sizing: MF/Commercial *Small multi-family/commercial systems are those that displace 30 kWth or less.
  • Multi-Family/Commercial Incentive Calculator
    • Scenario:
      • Multi-family Building
        • 10 units
        • Max 42 GPD/Unit
      • 42 x 10 = 420 GPD (maximum)
  •  
  • www.csithermal.com
  • Program Administrator’s Contact Information
    • Pacific Gas and Electric:
    • Phone: (877) 743-4112
    • Email: solar@pge.com
    • Website: www.pge.com/csithermal
    • California Center for Sustainable Energy (SDG&E territory):
    • Phone: (877) 333-SWHP
    • Email: swh@energycenter.org
    • Website: www.energycenter.org/swh
    • Southern California Gas Company:
    • Phone: (800) Gas-2000
    • Email: CSIThermalProgram@SoCalGas.com
    • Website: www.socalgas.com/rebates/solar/
    • Southern California Edison:
    • Phone: (866) 584-7436
    • Email: CSIGroup@sce.com
    • Website: www.sce.com/csithermal
  • Resources
    • Official Program Website
    • www.gosolarcalifornia.org/solarwater
    • Installer Workshop Schedule
    • www.energycenter.org/swh
    • SDG&E Online Business Energy Survey
    • http://www.joule21.com/SDGE/Navigator/CH_Welcome.aspx
    • CSI-Thermal Application Database & Incentive Calculator
    • www.csithermal.com
    • support@csithermal.com
    • 888-323-3133