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Updated: July 6, 2011
Net Energy Metering (or NEM) is one way to lessen Hawaii's dependence on imported oil by encouraging the greater use of eligible renewable energy sources like solar (photovoltaic, PV), wind, biomass, or hydroelectric power for electrical generation by residential and commercial customers. Hawaiian Electric Company (HECO), Maui Electric Company (MECO), and Hawaii Electric Light Company (HELCO) support Net Energy Metering and recognize our roles to help Hawaii transition from fossil fuels to more renewable energy resources. Below is information for HELCO's customers and contractors that we hope will be helpful. For information on NEM for MECO, visit www.mauielectric.com; and for HECO, www.heco.com.
1. WHAT IS NET ENERGY METERING?
Net energy metering is a program for customers with eligible distributed generation (small, utility or customer sited generation) that allows them to offset the cost of their electricity usage with energy they produce and consume on site or export to the grid. Eligible power generation systems are solar, wind, biomass, or hydroelectric generation facilities, or a hybrid system of two or more of these technologies. A specially programmed meter will be installed to measure the difference between electricity the customer purchases and the electricity that is exported to the grid.
NEM allows the export of any excess electricity (kilowatt-hours, kWh) produced by the customer's eligible renewable energy generator to the HELCO grid. NEM customers are billed for the net energy purchased, which is determined by subtracting the excess energy exported to the utility grid from the toal energy supplied by the utility. Here is the formula:
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Energy Supplied by the Utility (kWh) |
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Excess Energy Exported to the Utility (kWh) |
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Net Energy Billed to the Customer (kWh) |
In a given month, if more kilowatt-hours are exported to the grid than purchased from HELCO, they are carried forward as credits to offset subsequent bills within a 12-month period, and NEM customers will only be charged the "Minimum Charge" specified in the applicable rate schedule in effect during the billing period. Under NEM, no check or cash payments will be made for excess electricity generated.
2. WHAT IS THE DIFFERENCE BETWEEN THE NEM PROGRAM AND THE FEED-IN TARIFF (FIT) PROGRAM?
Under the NEM program, the customer connects to the utility grid, allowing it to export surplus electricity onto the grid. The customer receives credit for that surplus electricity at the utility's retail rate which credit can be used to offset customer electricity purchases over a 12-month period. Under the FIT program, the eligible renewable generating facility is paid for the energy it delivers to the grid at a fixed rate approved by the Commission for the 20-year term of the FIT Agreement. For energy delivered to a FIT customer from HELCO, the customer will be billed at the regular retail rate.
Under the NEM program, there are no fees to apply for the program. Under the FIT program, there is an application fee and additional fees depending on the size of the project. In addition to these differences between the two programs, there are a number of other differences that a customer should become familiar with before choosing to participate in a program, as the decision to proceed under either the NEM or FIT program is a decision that each customer must make based on their system size, surplus energy generated, energy consumed, as well as any circumstances which are unique to their system. For more information on the FIT program, please click here or visit www.hecofitio.com.
3. HOW ARE REQUIREMENTS ESTABLISHED FOR NEM?
The 2005 Legislature, by Act 104, gave the Hawaii Public Utilities Commission authority to set requirements and limits; as well as safety, performance, and reliability standards for NEM by order, tariff, or rule.
4. WHAT IS THE VALUE OF NEM?
Under NEM, customers with executed NEM agreements may use the energy produced from their eligible renewable energy power generation systems to offset all or part of their electricity purchases from HELCO in two ways:
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Energy produced from these renewable energy power generation systems is used directly to operate appliances and other electric equipment in a home or business, thereby offsetting electricity purchased from HELCO. |
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When a customer generates more electricity than what is consumed, excess energy produced may be exported to HELCO for credit at full retail value, which can be used to offset electricity purchases over a 12-month period. |
This is in contrast to other non-NEM customers with renewable energy generation systems. Customers with generating systems connected under a power purchase agreement are compensated for power exported to the utility grid at a lower wholesale rate. Customers with generating systems connected under a Feed-In Tariff (FIT) are compensated for power exported to the utility grid at a rate set by the State of Hawaii Public Utilities Commission to encourage the use of renewable energy resources. Customers with generating systems connected under a standard interconnection agreement must consume all the electricity that they generate, and the export of surplus energy to the grid is not allowed nor compensated for. With NEM, you are in effect being given the higher retail credit for excess power which you generate. For information on non-NEM generation, visit: www.heco.com.
5. WHAT TYPES OF GENERATORS ARE ELIGIBLE?
Hawaii law specifies that NEM applies to solar, wind, biomass or hydroelectric generating facilities, or a hybrid system of two or more of these technologies, with a capacity up to 100 kW. (For more information about these technologies, visit the website of the State of Hawaii, Department of Business, Economic Development and Tourism, Strategic Industries Division, Energy Branch).
6. WHERE CAN I FIND A LICENSED CONTRACTOR TO INSTALL A NEM SYSTEM?
Information on contractors specializing in NEM generating systems is available from a number of sources. Below are just a few:
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Phone book yellow pages under "solar" and "electric contractors" |
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Newspaper ads |
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Friends, relatives, and neighbors who have installed NEM systems |
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On the web by searching for "solar contractors Hawaii" or "big island solar contractors" |
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Hawaii Solar Energy Association, www.hsea.org |
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North American Board of Certified Energy Practitioners (NABCEP), www.nabcep.org |
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State of Hawaii Professional and Vocational Licensing (PCL) search - This search is designed to help the public obtain basic information about businesses and individuals that hold professional and vocational licenses issued by the State of Hawaii, http://pvl.ehawaii.gov/pvlsearch/app |
Please note that it is HELCO's general policy to not provide recommendations regarding contractors, equipment, or their suitability for any intended purpose. Customers are advised to use all due diligence in selecting contractors and investigating their proposals, just as they would with any major equipment purchase or appliance.
7. DOES A SOLAR WATER HEATING SYSTEM QUALIFY FOR NET ENERGY METERING?
No. NEM applies only to systems that generate electricity. Solar water heating systems use heat from the sun directly to heat water for your use. Solar water heating systems do not produce electricity and therefore cannot feed electricity into the grid. For more information on rebates available for solar water heaters and other energy efficiency measures, contact Hawaii Energy at www.hawaiienergy.com or (877) 231-8222.
8. HOW MANY CUSTOMERS CAN SIGN UP?
The amount of generation from all distributed generation sources, including NEM systems, that can be interconnected to HELCO’s grid on each individual distribution feeder before significant impacts may occur to the grid is limited. This limitation therefore determines the number of customers who can participate in NEM.
A feeder screening check is done to determine what the percentage of planned and installed distributed generation is on a feeder. Currently, when the amount of installed or planned capacity of distributed generation on a feeder is 15% or greater, an interconnection requirement study (IRS) is required to determine what the grid impacts will be, what additional equipment may be needed if any, and if the interconnection can be made. (Refer to “How do I sign up for NEM?” under #15 below.)
9. WHAT IS A FEEDER SCREENING CHECK?
A feeder screening check will determine if the specific feeder to which a planned NEM system seeks to be interconnected has reached the threshold level of distributed generation, currently set at 15% of the peak KVA load per feeder. Once the feeder reaches this threshold level, an additional study may be required to determine if the system can be interconnected without adversely affecting safety, reliability or impacting other customers on that feeder. (See #16 "How do I request a feeder screening check?" and #10 "What is an Interconnection Requirement Study?")
10. WHAT IS AN INTERCONNECTION REQUIREMENT STUDY (IRS)?
An IRS is a study performed to determine if the interconnection of additional distributed generation poses significant impacts to HELCO’s grid or quality of service. An IRS will determine if additional distributed generation can or cannot be connected and if there is a need for additional interconnection equipment, protective devices, and/or control systems.
HELCO continues to address the technical issues associated with the interconnection of increasing levels of distributed generation on a proactive basis. Customers and contractors should be aware, however, that if an IRS indicates that adverse impacts may occur, the interconnection may be denied, or for systems greater than 10 kW, additional interconnection equipment may be required to be installed at the customer’s expense.
Following receipt by HELCO of a complete NEM application, HELCO will assess the availability of sufficient distribution and transmission capacity to connect the generating system to HELCO’s system and determine if an IRS is required. If an IRS is required, the applicant will be notified and must decide if they will pay for the IRS or withdraw their application.
If the applicant agrees to pay for the IRS, they will be required to execute a signed IRS Letter Agreement to initiate the IRS process and submit payment in full to HELCO. Factors that affect the cost of the IRS include system size, type of technology, the number of feeders involved, and the complexity of the feeder(s). From submittal of the IRS proposal and payment, an IRS may take approximately four to six months or more to complete.
Upon completion of the IRS and the determination of any interconnection costs that may be the responsibility of the applicant, the applicant will have the option of agreeing to proceed with the interconnection work or withdraw the application.
11. WHY IS THE NUMBER OF CUSTOMERS (POWER PRODUCING CAPACITY) THAT MAY SIGN UP LIMITED?
The limit placed on the amount of distributed generation interconnected to HELCO’s distribution feeders and the interconnection requirements help to ensure that the NEM power generation system will not adversely impact HELCO’s electric distribution system so that you and other customers continue to receive reliable service and good power quality, avoiding potentially disruptive swings in voltage levels that could damage your equipment and that of the utility.
12. WILL I NEED A NEW METER AND, IF SO, DO I NEED TO PAY FOR IT?
New and existing NEM systems will require a new bi-directional digital meter capable of measuring the energy supplied by HELCO and the excess electricity from your renewable energy generation system exported to the grid. HELCO will provide the NEM meter at no cost to you.
Your NEM power generation system should not be turned on (energized) until an executed NEM agreement is in place between you and HELCO and your meter has been replaced. A meter change will be scheduled after HELCO receives a completed NEM agreement application, notification of the electrical permit being closed, and verification of the inverter set points.
Two types of NEM meters have been installed. To learn how to read a NEM meter installed prior to January 1, 2011, click here. For a NEM meter installed after January 1, 2011, click here. Please note that your NEM meter will not read the same as the output shown on your inverter, as the energy generated by your system first powers your home's electrical devices and only the excess will then be registered as received from the customer on the NEM meter.
13. WHAT HAPPENS TO MY ELECTRIC BILL IF I GENERATE MORE ELECTRICITY THAN I USE FROM THE UTILITY?
Billing is on a monthly basis and you are responsible for a minimum charge even if you export more electricity than you take from the utility. The minimum charge covers some of the fixed costs of maintaining your electric account, including reading your meter and billing.
An executed NEM agreement allows the customer to carry over unused credits (excess net generation expressed as a monetary value) to future bills within a 12-month period, starting from when the agreement is executed. Unused credits left at the end of each 12-month reconciliation period may not be carried over to the next 12-month period. No check or cash payments will be made for unused credits.
14. WHAT ARE THE REQUIREMENTS FOR EXECUTION OF THE NEM AGREEMENT?
According to Hawaii state law (Hawaii Revised Statutes (HRS) Section 269-101 - 269-111), all residential and commercial utility customers who own and operate an eligible renewable energy generation system up to a generating capacity of 100 kW and intend to connect to the utility grid, must register their systems with their utility by executing a NEM agreement. The executed agreement allows the NEM customer to connect their renewable generator to the utility grid, allowing it to export surplus electricity into the grid, and to receive credits at full retail value which can be used to offset electricity purchases over a 12-month period.
All NEM systems must comply with HELCO’s interconnection requirements in effect at the time of signing the NEM agreement or at the time of system interconnection, whichever is later.
For qualified renewable energy generation systems of 10 kW or less:
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The NEM agreement (Appendix I) must be completely filled out with the customer information including the customer's name, address, electric account number, and contact information provided. The agreement must be signed by both the customer and the licensed electrical contractor who completed the work. The make, model and number of renewable generators (PV modules, wind turbine, hydroelectric generator, or biomass generator) and inverter(s) information must also be provided. |
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A single line drawing accurately illustrating how power output from the renewable energy generator is interconnected to the utility is also required. |
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A lockable utility disconnect must be installed within close proximity of the meter. |
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The County of Hawaii must have inspected the renewable energy generation system and closed the electricl permit for the installation. |
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Verification that the inverter(s) settings were changed to meet HELCO interconnection requirements must be submitted by the installing electrician, contractor, or inverter manufacturer. Forms of proof can be a letter from the inverter manufacturer or an inverter screenshot showing that the required changes have been made. |
For qualified renewable energy systems greater than 10 kW but not more than 100 kW:
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Download Rule 18 - Net Energy Metering and complete Appendix II and Exhibit A. The agreement must be signed by the customer. |
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For systems greater than 10 kW and less than 30 kW, submit a single line drawing accurately illustrating how the system is interconnected to the utility along with relay list, trip, and inverter(s) settings of the generating facility. For systems greater than 30 kW but not more than 100 kW, submit a three line drawing with a licensed professional electrical engineer stamp along with relay list, trip, and settings of the generating facility. |
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A certificate of insurance as described in Section 6 of the NEM agreement is also required. |
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A lockable utility disconnect must be installed within close proximity of the meter or the electrical room. |
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The County of Hawaii must have inspected the renewable energy generation system and closed the electrical permit for the installation. |
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Verification that the inverter(s) settings were changed to meet HELCO interconnection requirements must be submitted by the installing electrician, contractor, or inverter manufacturer. Forms of proof can be a letter from the inverter manufacturer or an inverter screenshot showing that the required changes have been made. |
15. WHAT INVERTERS AND PV MODULES ARE REQUIRED?
Only UL listed inverters and PV modules may be used for NEM systems.
In addition, an inverter must be able to be programmed to meet HELCO's interconnection requirements. The inverter trip point setting must be settable to 57.0 Hz and the inverter clearing time to 300 seconds. Following system installation, verification that the settings for the specific inverter installed have been changed to these required settings must be provided to HELCO by the customer, contractor, or inverter manufacturer, for the NEM Agreement to be executed by HELCO and the system interconnected and energized. HELCO recommends that confirmation be obtained from the inverter manufacturer that the inverter selected for installation can meet HELCO's interconnection requirements prior to system design and inverter purchase. As of May 1, 2011, exceptions to these requirements will not be granted.
16. HOW DO I SIGN UP FOR NEM?
Due to the volume of NEM applications being received, HELCO recommends that customers considering participation in the NEM program submit a complete application as soon as possible. As the level of NEM activity increases, there may be delays in HELCO's processing of NEM applications, and we greatly appreciate our customers' understanding and patience.
HELCO strongly recommends the following steps:
FIRST:
For all NEM systems:
PRIOR TO SYSTEM INSTALLATION
STEP 1
Work with an electrician or contractor who specializes in the qualified NEM energy system you are interested in installing to find out from HELCO whether or not there is sufficient remaining capacity on your utility distribution feeder to install the proposed NEM system and if an Interconnection Requirement Study (IRS) will be required. HELCO will notify the requestor within approximately 10 business days whether or not there is currently remaining capacity on the circuit or if an IRS should be budgeted for. (See #16 “How Do I Request a Feeder Screening Check?” and #10 “What is an Interconnection Requirement Study?”)
Note: Please be aware that this initial feeder screening check does not reserve a place in the NEM queue for your system capacity nor guarantee that an Interconnection Requirement Study (IRS) will not be required upon HELCO’s review of the NEM agreement application following its submittal to HELCO. Following receipt of a complete NEM agreement application and prior to placing the application in the queue, HELCO will again review the capacity on the applicable feeder to determine if an IRS should be done. If an IRS is required, HELCO will send a proposal to the customer/contractor which will include the projected cost of the study.
STEP 2
If an NEM system installation is feasible, working with your contractor, submit a complete NEM agreement application (Appendix I for systems 10 kW and less, or Appendix II for systems greater than 10 kW but not more than 100 kW) including the single line drawing (three line drawing for systems >30 kW) to HELCO’s Engineering Department. Applications will be processed in the order in which they are received. Incomplete agreements will be mailed back to the person submitting the application with a letter specifying what was missing. Due to the volume of applications, it typically takes 4-6 weeks to process the NEM application request.
A second feeder screening check will then be done by HELCO. If no Interconnection Requirement Study is needed, a letter will be sent to the customer and contractor informing them that the application has been placed in the NEM queue. The system may then be installed. If an IRS is required, a HELCO engineer will contact the customer/contractor to discuss the cost and necessary steps for initiating the study.
STEP 2a
To receive confirmation from HELCO of the date that your NEM application documents were initially received, you must include a self-addressed stamped envelope with your submittal. Address the envelope to the most appropriate person to receive the confirmation. The confirmation reply will be date-stamped with the date your NEM submittal was received.
SECOND:
For systems 10 kW and less:
PRIOR TO SYSTEM INSTALLATION:
STEP 1
Await notification (mailed letter) from HELCO that your NEM agreement application has been placed in the queue or that an Interconnection Requirement Study is required.
STEP 2
If your application has been placed in the NEM queue, arrange with your contractor for system installation. If an IRS is required, a HELCO engineer will be contacting you or your contractor. Prior to proceeding, await the results of the IRS.
FOLLOWING SYSTEM INSTALLATION:
STEP 3
Have your contractor submit verification of a closed County of Hawaii electrical permit along with verification of the required inverter(s) settings to HELCO’s Engineering Department. Following HELCO’s review of these documents, you will be scheduled for the installation of a NEM meter. Please allow 3 to 4 weeks for the meter to be changed. YOU SHOULD NOT OPERATE YOUR SYSTEM UNTIL HELCO HAS REPLACED YOUR EXISTING METER WITH AN NEM METER AS YOU MAY NOT RECEIVE ANY CREDIT FOR THE ELECTRICITY PRODUCED. IN ADDITION, YOUR EXISTING METER MAY INACCURATELY RECORD THE FLOW OF ELECTRICITY AND THEREBY INCREASE THE AMOUNT BILLED.If no one is at home at the time of the meter change out, a tag will be left on your door.
STEP 4
Notify your contractor that the NEM meter has been installed.
STEP 5
Following HELCO’s installation of the NEM meter, energize your system.
For systems greater than 10 kW and up to 100 kW:
For systems over 10 kW but not more than 100 kW, you must enter into a more detailed NEM agreement. Please refer to Appendix II and III under Rule No. 18 for the requirements and steps in the interconnection process and a process overview flowchart. Download Rule No. 18 here.
17. HOW DO I REQUEST A FEEDER SCREENING CHECK?
Submit the following information to LVM@helcohi.com
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Name |
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HELCO account number for the site where the system is to be installed |
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Service address as shown on your electric bill |
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TMK (tax map key) |
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Size of the system to be installed |
In approximately 3 to 7 business days, HELCO will inform the contractor or customer if:
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At the present time, there is sufficient capacity on the circuit for the size of system proposed, or |
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If an Interconnection Requirement Study (IRS) is needed and should be budgeted for, or |
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If interconnection of additional distributed generation on the respective feeder is not presently being accepted or if additional interconnection equipment is needed. |
Note: Please be aware that this initial feeder screening check does not reserve a place in the NEM queue for your system capacity nor guarantee that an Interconnection Requirement Study (IRS) will not be required upon HELCO’s review of the NEM agreement application following its submittal to HELCO. Following receipt of a complete NEM agreement application and prior to placing the application in the queue, HELCO will again review the capacity on the applicable feeder to determine if an IRS should be done. Due to the volume of NEM agreement applications being received, HELCO recommends that customers considering NEM submit a complete agreement application as soon as possible.
18. WHERE DO I SUBMIT COMPLETED NEM FORMS?
| For East Hawaii installations, mail to: |
For West Hawaii installations, mail to: |
| Hawaii Electric Light Company |
Hawaii Electric Light Company |
| Attn: Net Energy Metering |
Attn: Net Energy Metering |
| 54 Halekauila Street |
74-5519 Kaiwi Street |
| Hilo, HI 96720 |
Kailua-Kona, HI 96740 |
19. WHAT IS THE NEM QUEUE?
NEM is available to customers on a first come, first serve basis. Basically, the NEM queue reserves your place in line for an executed agreement with HELCO. To be placed in the NEM queue, HELCO’s Engineering Department must receive a complete NEM agreement application, verify the information provided, determine if there is room on the applicable feeder for the size of system planned, and if an Interconnection Requirement Study (IRS) is required. If the feeder capacity for distributed generation is less than 15% at the time a complete NEM agreement application is reviewed by HELCO, no IRS will be required.
If the NEM system is not installed and verification of a closed County of Hawaii permit received along with verification of the inverter settings within 12 months for systems 20 kW and less or 18 months for systems greater than 20 kW, the NEM agreement application will be removed from the queue and the applicant will lose their place in line. A one-time extension of up to a maximum of 180 days may be requested in writing by the applicant. The length of the extension will be at HELCO’s sole discretion and will be based on progress made towards completion of the project. To reapply once an application is removed from the queue, a new application must be submitted, a new feeder screening check performed, and an IRS performed if required.
20. HOW DO I GET PLACED IN THE NEM QUEUE?
You must submit a complete NEM agreement application to HELCO. Working with your contractor or licensed electrician, fully complete a NEM agreement application for the system size proposed and submit it to HELCO’s Engineering Department at the applicable address listed in #17 above. The NEM agreement application must be completely filled out with the customer information including the customer's name, address, electric account number, and contact information provided. The agreement application must be signed by both the customer and the licensed electrical contractor who will complete the work. The make, model and number of renewable generators (PV modules, wind turbine, hydroelectric generator, or biomass generator) and inverter(s) information must also be provided.
Along with the NEM agreement form, a single line drawing (three line drawing for system > 30 kW) accurately illustrating how power output from the renewable energy generator is interconnected to the utility for the size of system to be installed is also required. Proof of liability insurance is also required for any system greater than 10 kW.
21. WHY ARE INTERCONNECTION REQUIREMENTS NECESSARY?
Interconnection requirements are necessary for safety reasons and to mitigate potentially adverse impacts of customer-sited distributed generation interconnected to HELCO’s grid.
If your renewable energy generation system mistakenly back-feeds power into an electric line that utility crews think is de-energized, the crews can be seriously injured or even killed. Interconnection requirements help to ensure that the renewable energy installation meets all safety requirements. In addition, the requirements help to ensure that the NEM system will not adversely impact HELCO’s electric distribution system so that you and other customers continue to receive reliable service and good power quality, avoiding potentially disruptive swings in voltage levels that could damage your equipment and that of the utilities.
Whether you are installing a new renewable energy generation system or considering NEM for an existing renewable energy generation system, compliance with all interconnection requirements, including safety and other codes, is required.
22. WHAT IF MY NEM SYSTEM IS ALREADY INSTALLED?
For NEM agreement applications received for systems already installed, HELCO will conduct a feeder screening check prior to approving the interconnection. If an IRS is required, the study will need to be paid for, conducted, and the results analyzed prior to interconnection authorization.
Please note that all generating systems interconnected with HELCO’s grid must be in compliance with all applicable codes, ordinances, and interconnection requirements and have the appropriate interconnection agreement executed with HELCO.
23. HOW DO I GET THE COUNTY OF HAWAII ELECTRICAL PERMIT CLOSED?
Call the contractor who installed your renewable energy generation system and have the contractor set an appointment with the county’s electrical inspectors. Closure of the electrical permit signifies that your system has been inspected and found to be designed and installed in conformance with applicable codes for safe operation.
Final inspection and approval by the county electrical inspector is required and is a vital part of executing a NEM agreement. In accordance with NEM tariff rule (Rule 18), the utility will not execute a NEM agreement without verification of approvals and closure of applicable permits. After the permit has been closed, have your contractor submit verification of the closed permit to HELCO following the county’s inspection.
For information on how to obtain an electrical permit or to determine permit status, call the County of Hawaii Building Department: 961-8331 (Hilo) or 327-3520 (Kona).
24. WHAT NEEDS TO BE DONE IF I PURCHASE OR RENT A RESIDENCE OR BUSINESS WITH A NEM SYSTEM?
If you purchase or rent a home and the electric account will be in your name, you must sign a new NEM agreement at the time electric service is applied for.
25. HOW DO I GET MORE INFORMATION ABOUT NEM?
If you have questions about renewable energy installations or need more information about NEM or the required forms that must be submitted to HELCO, please call us at 969-0358 or visit our website at www.helcohi.com under the link to Renewable Energy.
26. HOW DO I GET INFORMATION ABOUT INCENTIVES AND TAX CREDITS FOR PV AND OTHER RENEWABLE ENERGY SYSTEMS?
Consult the following sources for information about available state and federal incentives and tax credits for PV and other renewable energy systems:
Database of State Incentives for Renewables & Efficiency (DSIRESOLAR™) www.dsireusa.org.
Hawaii Department of Taxation
Taxpayer Services Branch
P.O. Box 259
Honolulu, HI 96809
Phone: (808) 587-4242
E-Mail: Taxpayer.Services@hawaii.gov
Web Site: http://www.state.hi.us/tax
In addition, contact your NEM contractor to discuss contractor incentives or financing opportunities that may be available.
27. HOW DO I GET INFORMATION ABOUT ENERGY EFFICIENCY INCENTIVES FOR APPLIANCES, LIGHTING, SOLAR WATER HEATING, AND OTHER ENERGY EFFICIENCY EQUIPMENT?
Contact Hawaii Energy at www.hawaiienergy.com or (877) 231-8222.
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