CongratulationsWelcome to Alternate Energy Inc's. Energy Analysis and Proposal for a grid tied photovoltaic system to be considered for the Ito's residence of 565 Paopua Lp. The purpose of this document is to illustrate the advantages for you, your household and the environment by installing a gridtied photovoltaic system with Alternate Energy Inc. Three GenerationsAlternate Energy Inc. (AEI) is a familyowned and operated business with a long history of serving kamaaina. More than 30 years ago, Bruce Ekimura, a plumber by trade, realized that harnessing the power of the sun could help Hawaii families combat the rising price of electricity and help our state become less dependent on imported oil. Bruce and his father became early specialists in the installation of solar hot water heaters, and later photovoltaic (PV) systems, and in 1993 Alternate Energy was officially incorporated. |
Today, as rising oil prices continue to keep electricity rates soaring, Alternate Energy remains committed to helping local families and businesses discover the clean, green, moneysaving power of the sun. Elite Installer
Alternate Energy Inc. recently achieved
the status of Panasonic Solar's first and only recognized Elite Installer
in the state of Hawaii. This means that we are
Elite Training & CertificationAll of our highly skilled solar technicians are employees (not subcontractors) annually Trained and Certified by Panasonic Solar to design, install and service all of your PV needs. |
Elite ProductsWe understand that photovoltaic systems are a long term investment. That's why we invest in the most reliable companies that have been trusted for years. Panasonic Solar's premium solar panels are among the highest efficiency and highest rated panels in the industry. The solar panels are also designed and warrantied for installations near salt water for long lasting performance. Elite ServiceBeing family-owned and operated, we take pride in every job and make sure each customer is satisfied, every time. We are Hawaii's expert solar company since 1993.
This system will prevent 73.32
lbs sulfur dioxide (causes acid rain) from being released into Hawaii's rainforests. |
| Street Address: | 565 Paopua Lp |
| City, Zip Code, State: | Kailua,96734,HI |
| Solar Sunshine Zone: | 400 |
| Weather Data Source: | (TMY2) HONOLULU, HI 6.2 mi |
| Peak Sun Hours for Production: | 4.6 hrs |
| Current Utility Rate: | $0.40 / kWh |
| Deal Type: | NEM+ w/Storage |
| System Size (DC Rating, kW): | 4.40 |
| DC to AC Derate Factor: | .85 |
| System Size (AC Rating, kW): | 3.74 |
| Module Type: | Hyundai 440NF Black |
| Number of Modules: | 10 |
| Module Power: | 440 W |
| Inverter Type: | Tesla 11.5 kWh |
| Number of Inverters: | 1 |
| Storage Type: | Tesla Powerwall 3 AC (14.0 kWh) |
| Array Azimuth (Orientation):180 ° | |
| Roof Tilt: | 23 ° |
| Est. Annual Energy Production (kWh): | 6,275 / Year |
| Usable Storage Capacity (kWh): | 14 |
| Depth of Discharge: | 100% |
| Storage Type: | Tesla Powerwall 3 AC (14.0 kWh) |
| Number of Storage System: | 1 |
| Round Trip Efficiency: | 92.5% |
| Equivalent Cycles: | 1 full cycle per day for 10 years |
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| MONTHS(2025) | |||||||||||||||||||||||||||||||||
| Month | Sun Hours | Energy (kWh) |
|---|---|---|
| 1 | 3.96 | 450.24 |
| 2 | 4.46 | 507.08 |
| 3 | 4.69 | 533.23 |
| 4 | 4.65 | 528.69 |
| 5 | 4.88 | 554.84 |
| 6 | 4.78 | 543.47 |
| 7 | 4.89 | 555.97 |
| 8 | 5.06 | 575.3 |
| 9 | 5.24 | 595.77 |
| 10 | 4.58 | 520.73 |
| 11 | 4.09 | 465.02 |
| 12 | 3.91 | 444.55 |
| Year | 4.6 | 6274.89 |
 |
|
Est. New Net Bill (w/o storage)
Est. New Net Bill (w/ storage)
Avoided Electrical Cost
| Current Energy Usage (kWh) | Current Bill ($) |
Energy Production (kWh) | Est. PV used - Direct (kWh) (100%) |
Est. PV used - Direct valuation ($0.40/kWh) |
Est. PV available - Battery (kWh) | Est. PV used - Battery (kWh) |
HECO curtailed (kWh) | HECO Delivered (kWh) | Net Bill (* $25 Minimun HECO Service Fee) | |
|---|---|---|---|---|---|---|---|---|---|---|
| Jan | 300.00 | $120.00 | 450.24 | 300.00 | $120.00 | 150.24 | 150.24 | 0 | 0.00 | * $25.00 |
| Feb | 300.00 | $120.00 | 507.08 | 300.00 | $120.00 | 207.08 | 207.08 | 0 | 0.00 | * $25.00 |
| Mar | 300.00 | $120.00 | 533.23 | 300.00 | $120.00 | 233.23 | 233.23 | 0 | 0.00 | * $25.00 |
| Apr | 300.00 | $120.00 | 528.69 | 300.00 | $120.00 | 228.69 | 228.69 | 0 | 0.00 | * $25.00 |
| May | 300.00 | $120.00 | 554.84 | 300.00 | $120.00 | 254.84 | 254.84 | 0 | 0.00 | * $25.00 |
| Jun | 300.00 | $120.00 | 543.47 | 300.00 | $120.00 | 243.47 | 243.47 | 0 | 0.00 | * $25.00 |
| Jul | 300.00 | $120.00 | 555.97 | 300.00 | $120.00 | 255.97 | 255.97 | 0 | 0.00 | * $25.00 |
| Aug | 300.00 | $120.00 | 575.30 | 300.00 | $120.00 | 275.30 | 275.30 | 0 | 0.00 | * $25.00 |
| Sep | 300.00 | $120.00 | 595.77 | 300.00 | $120.00 | 295.77 | 295.77 | 0 | 0.00 | * $25.00 |
| Oct | 300.00 | $120.00 | 520.73 | 300.00 | $120.00 | 220.73 | 220.73 | 0 | 0.00 | * $25.00 |
| Nov | 300.00 | $120.00 | 465.02 | 300.00 | $120.00 | 165.02 | 165.02 | 0 | 0.00 | * $25.00 |
| Dec | 300.00 | $120.00 | 444.55 | 300.00 | $120.00 | 144.55 | 144.55 | 0 | 0.00 | * $25.00 |
Estimated Annual Totals:
| 3,600.00 | $1,440.00 | 6,274.88 | 3,600.00 | $1,440.00 | 2,674.88 | 2,674.88 | 0.00 | 0.00 | $300.00 |
Energy stored for later use
 |
|
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HECO Delivered
Est. PV Used - Direct
Battery Charging
Est. PV Used - Battery
PV Production
| Daytime Load: | 100% |
| Nighttime Load: | 0% |
| PV System Size (kW) | 4.40 kW |
| Inverter Size (kW) | 11.5 |
| Usable Storage Capacity (kWh) | 14 |
| Daytime Load (100%,kWh) | 10 |
| PV Energy Required for NEM+ (kWh) | 21 |
| Available kWh from PV system | 17 |
| % of NEM+ capacity supplied | 81% |
| Current Annual Energy Usage (kWh): | 3,600 |
| Current Annual Energy Bill: | $1,440.00 |
| Total Energy Production (kWh/year.): | 6,275 |
| Round Trip Efficiency (RTE) Battery | 92.5% |
| Estimated PV Used - Direct (kWh/year): | 3,600 |
| Estimated PV Used - Battery (kWh) | 2,456 |
| HECO Delivered (kWh/year): | 0 |
| HECO Curtailed (kWh) | 0.00 |
| Total Annual Production Value: | $2,422.22 |
| % of Bill Offset: | 168% |
* Estimate PV production and battery storage values are provided for illustrative purposes only and should not be construed as predicted and exact energy production or stored energy behavior. Hypothetical PV and battery performance results are simulated and have many inherent factors that may affect your overall system's performance. As your system has not actually been installed and put into service, the results may have under or over compensated for any impact of certain assumptions and weather factors, such as but not limited to your assumptions in daytime vs. nighttime loads and/or cloudy and rainy days. Any methods, techniques, or assumptions presented in this estimate are for educational purposes only and are presented to assist you to make your own judgments on sizing your PV system (for which you are responsible). Any information or data contained in this estimate is historical and provides no indication of future performance.
| System Price: | $31,061.68 |
| Addtional Cost: | $1,300.00 |
| 32nd Anniversary Special: | ($500.00) |
| General Excise Tax (4.712%): | $1,501.32 |
| Total Payable: | $33,363.00 |
| System #1 (4.40 kW): | |
| U.S. Federal Tax Credit 0%*: | ($0.00) |
| Hawaii State Tax Credit 35%*: | ($5,000.00) |
| Total Investment NEM+ | $33,363.00 |
| U.S. Federal Tax Credit 0%: | $0.00 |
| Hawaii State Tax Credit 35%*: (based on value of PV system) | $5,000.00 |
| Net System Investment (Less Tax Credit) | $28,363.00 |
| Simple Payback (Less Tax Credits): | 11.71 |
| Return On Investment (ROI): | 8.54 |
| Cost/watt: | $7.58 |
The Hyundai NF(BK)Series solar modules have passed vigorous international standards and certifications. Manufacturer warranties include 25 years for product defect, Materials and workmanship and 30-Year Performance Warranty.First year degradation is 1% and Linear warranty after initial year with 0.4% annual degradation, 87.4% is guaranteed up to 30years.
.
IronRidge Solar Roof Racking accommodate some of the longest spans in the industry, reducing the number of roof attachments and saving time and money 
S-5! clamps attach to the panel seam by the tightening of two "bullet-nosed" stainless steel setscrews against the seam material. The setscrews compress the seam material against the opposite wall of the clamp. They will "dimple" the seam material, but will not penetrate it. 
The hardware like nuts and bolts used in our installations are all stainless steel. This is to ensure a long lasting installation and foundation for your photovoltaic system.
Powerwall 3 is a fully integrated solar and battery system, designed to accelerate the transition to sustainable energy.Customers can receive whole home backup, cost savings, and energy independence by producing and consuming their own energy while participating in grid services. Once installed, customers can manage their system using the Tesla App to customize system behavior to meet their energy goals. Powerwall 3 achieves this by supporting up to 20 kW DC of solar and providing 11.5 kW AC of continuous power per unit. It has the ability to start heavy loads up to 185 A LRA, meaning a single unit can support the power needs of most homes. Powerwall 3 is designed for mass production, fast and efficient installations, easy system expansion, and simple connection to any electrical.
service.
Wall mounted, rechargeable lithium ion battery with liquid thermal control.
14.0 kWh
For daily cycle applications
Ten years
90% round-trip DC efficiency
| Power | Voltage | Current |
| 7 kW | 350 - 550 V | 14.3 A |
100%
Single phase compatible.
-4°F to 122°F / -20°C to 50°C
Rated for indoor and outdoor installation.
287 lbs / 130 kg
45.3" x 29.6" x 5.75"
1150 mm x 753 mm x 147 mm
UL 9540, UL 1642, UL 1973
AC156 seismic certification
IEEE 693- 2005 seismic certification
FCC Part 15 Class B
Your Solar FutureWhat can you be sure of in times like this? You can be sure that your PV system will pay for itself while saving you money. As an investment property your PV system will yield a steady return year after year regardless of what the economy is doing, protecting your household from rate hikes.
38.73 lbs of nitrogen oxides
(causes smog) avoided
|
Assured WarrantyWhen you choose AEI, you get more than a well trained and professional staff. You also get AEI's thirty years of proven reliability, outstanding customer support and the assurance of our 10-year workmanship guarantee to the original end-user. Workmanship warranty covers any type of roof damage, roof leaks, or damage caused by roof leaks, as a result of defects in AEI's installation or repairs. AEI does not warrant the condition of the roof or the roof structure and excludes glass breaking on the photovolatic module through misuse, abuse, lack of reasonable care, failure of the customer to maintain the property, building and improvements in good condition, alteration or any other failure not resulting from defects in materials or workmanship in the installation. AEI is not responsible for any damages or losses relating to the decrease in output or storage which any occur during the pendency of or delays with warranty claim processing , repairs and/or replacement of parts pursuant to any applicable warranties. AEI includes the first 5 years of labor on any PV panels or inverter/optimizer replacement at no charge. For additional information, please see our Terms and Conditions. Manufacturer Warranties:Panasonic Solar,Hyundai Energy Solutions and REC Alpha Series warrants the power output of their PV panels for twenty-five years. |
The power output degradation will not fall under 92% of the designated minimum power output. Enphase's microinverter has a manufacturer's warranty of 25 years. All of our SolarEdge installations include a 25 year warranty for power optimizers and a 12 year warranty for inverters from the manufacturer. Our Home Energy Storage Solution (HESS) has a manufacturer's warranty of 10 years. These warranties are manufacturer's warranties. AEI will assist the customer if filing a claim with the manufacturer in the event the power output is lower than the minimum power output, however, AEI is not responsible for any damages or losses due to the difference in the warranted power output and actual output or storage which may occur during the pendency of or delays with claim processing, repairs and/or replacement of parts pursuant to any applicable warranties.Trip fees may apply for warranty repairs. ConclusionThank you for the opportunity to present you with a proposal for your grid-tied solar electric system. Alternate Energy Inc. is delighted to be working with you. Please let us know what we can do to win your business. |
| Name | Marshall Ito |
| Street Address | 565 Paopua Lp |
| City, Zip Code, State | Kailua, 96734, HI |
| Property Type | Single Family Home |
|
Primary Phone ,Secondary Phone:
(808) 554-9862
|
|
| han.sourou@gmail.com | |
| Deal Type: | NEM+ w/Storage |
| Storage Type: | Tesla Powerwall 3 AC (14.0 kWh) |
| Number of Storage System: | 1 |
| PV System Size: | 4.40 kW |
| Module Type: | Hyundai 440NF Black |
| Number of Modules: | 10 |
| Inverter Type: | Tesla 11.5 kWh |
| Number of Inverters: | 1 |
| Roof Type: | Metal Standing Seam |
| Charging Cable: | No |
| Additional Work Description: Remote meter, generation sub panel, gutter | |
| Solar Insure added: | Yes |
| PRICE SUMMARY | |
| System Price: $31,061.68 | |
| Addtional Cost: $1,300.00 | |
| 32nd Anniversary Special: ($500.00) | |
| Sub Total: $31,861.68 | |
| General Excise Tax (4.712%): $1,501.32 | |
| Total Payable: $33,363.00 | |
| TAX INCENTIVES | |
| Hawaii Tax Credit (35%)*: ($5,000.00) | |
| Federal Tax Credit (0%)*: ($0.00) | |
| Net Cost (w/ Tax Credits): $28,363.00 | |
| Method of Payment: | Cash/Check |
Jeff Lum Feb 21,2026
Marshall Ito Feb 21,2026
Authorized Agent
Date
Customer Print & Signature
Date
Cancellations made within 24 hours of installation will incur a $500 fee unless due to Force Majeure.
Bruce Ekimura
Feb 21,2026
President and Principal RME (Lic. No. C-26041)
Date
Certified and trusted by Panasonic Solar 