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30-year simulation report

A close run between five modules

TWMNF-66HD725 delivers 19,552 kWh over 30 years at 0.00 ¢/kWh, which makes its energy 16% cheaper per kilowatt-hour than the dearest module in this report.

27 September 2026, 10:59 7918eae7-c236 Saved - link stays live
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Best long-term value
TWMNF-66HD725 725 Wp
  • Cheapest energy in the set. 0.00 ¢/kWh, 16% below the dearest module in the set.
  • Most energy produced. 19,552 kWh over 30 years, 388 kWh ahead of the next module.
82 of 100
Cost per kWh 0.00 ¢/kWh
Ranking leader
TWMNF-66HD725
Score 82 of 100
Highest 30-year yield
19,552 kWh
2,752 kWh above the lowest module
Lowest cost per kWh
0.00 ¢/kWh
16% cheaper than the dearest
Modules compared
5
Prices entered by the requester
Assumptions Cell temperature55 °C InstallationPitched, equator Baseline yield1,050 kWh/kWp Horizon30 years CurrencyUSD Change and re-run
01

Side by side

# Manufacturer / model Power Price Year 1 30-year Cost per kWh Score
1 TWMNF-66HD725 725 Wp $0.11 690 19,552 0.00 ¢/kWh Cheapest energy in the set 82
2 Huasun RS725S9-132GANT 725 Wp $0.11 677 19,165 0.00 ¢/kWh 78
3 LR7-72HYD-660M 660 Wp $0.11 633 18,044 0.00 ¢/kWh 43
4 RSM132-11-605-630BNDG-625 625 Wp $0.11 593 16,800 0.00 ¢/kWh 27
5 JAM66D45-630/LB 630 Wp $0.11 598 16,935 0.00 ¢/kWh Weakest of the set 20
top 25% middle 50% bottom 25% Bands are relative to the modules in this report.

What drives each score

Each bar is the module's own composite, split into the three weighted parts that make it up. A dimension the whole set ties on separates nothing and splits evenly, and one they nearly tie on counts for nearly nothing.

TWMNF-66HD725 82
RS725S9-132GANT 78
LR7-72HYD-660M 43
RSM132-11-605-630BNDG-625 27
JAM66D45-630/LB 20
30-year yield · 45%Cost per kWh · 40%Warranty · 15%
02

Where the difference comes from

Cumulative energy

Kilowatt-hours added up year by year. The gap widens with every year - by year 30 it is 2,752 kWh between the highest and lowest module.

Power remaining

Percentage of nameplate power still delivered, on each module's own datasheet curve. A module that holds its power longer is producing from a bigger number every year.

03

Method

Full methodology
How each figure is built
1 Annual yield Panel watts times the installation baseline of 1,050 kWh/kWp, times a temperature factor from the module's own coefficient at 55 °C, times whatever degradation has left that year.
2 Degradation Each module ages at its own datasheet rate - TWMNF-66HD725 loses 1% in year one, then 0.4% a year. Where a manufacturer publishes no curve, the 2% / 0.55% convention is used.
3 Cost per kWh Offer price divided by the thirty annual yields added together. The only figure that lets a dearer module win, and often it does.
4 Score A 0-100 composite: lifetime energy 45%, cost per kWh 40%, warranty 15%, each normalised across this report's modules. A dimension they all tie on splits evenly.
What this does not model

Energy price inflation, inverter and installation cost, local irradiance and weather, shading, or degradation behaviour that differs from the datasheet curve. This report compares modules against each other, not a full system business case. Talk to an installer before you buy.

Sources
Panel specifications read from manufacturer datasheets, refreshed daily.
Prices entered by whoever generated this report - not quotes we obtained or verified.
Baseline yield from the installation type, overridable with PVGIS data.
Generated by ComparePV on 27 September 2026, 10:59 · report 7918eae7-c236 · anonymous and shareable Run a new comparison