HESOLAR - Solar Panels Austin TX

We Compare Panasonic, Sunpower, LG, and more!

HESOLAR test array comparing sunpower to panasonic and LG solar panels in Austin TX

Behold the HESOLAR Test Array! Located in the Greater Austin TX area showing how Premium Solar Panels perform in our local environment. Our test array uses module level electronics to actively compare all of the latest solar panels on the market.

The Hoffman brothers are both Master Electricians that grew up in the Austin electrical industry. The brothers make a point to test all new electrical equipment before offering it to their customers.

Solar Panels we are testing

Panasonic HIT Solar Panels

Panasonic HIT

Panasonic's HIT solar panels are high efficiency and have a proven 40 year manufacturing history.

SunPower X Series Solar Panels


SunPower's solar panels have a copper backplate that offers a clean aesthetic and high efficiency.

LG NeON2 series solar panels


LG's NeON2 have 2 options: The 12 bus-bar front contact & the R-Series ultra efficient rear contact.

solarworld and other standard efficiency solar panels

Standard Efficiency

We also compare solar panels from Solaria, Q-Cells, Mission Solar, and more!

Get a Free Estimate - Solar and/or Batteries

Use the form below or call 512-921-6763 to schedule a Free Consultation.

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How we test solar panels

HESOLAR Test Array - Located in Austin TX

dc optimizer used to compare solar panels on the HE solar test arrayUsing SolarEdge DC optimizers we are able to mix different solar panels and log their production. DC optimizers do not clip power output like micro inverters. This gives us full output potential under various Central Texas weather conditions.

All of the original HESOLAR Test Array solar panels were deployed at the same time. Solar power output will slowly degrade from age. This is an important variable that we will take into consideration as we add new panels to the array. (NOTE: We have recently added QCells 325W and Solaria 340 & 350W) he solar test array solar panels production  

How we rank solar panels

Premium Solar Panels - tested in the Austin Heat

Ranking Factors – Compared Below:

Before you scroll down to the rankings (you already did.. didn’t you!) get to know the factors we take into consideration.

Cost: Cost is rated by the cost per yield (kWh) of each solar panel as recorded on the HESOLAR Test Array. Consumers interested in cost should pay close attention to QCell vs. LG Solar Comparison below. Visit our Solar Panel Cost page to learn more about complete system cost in Austin TX.

Efficiency: Efficiency is rated by the yield per sqft as recorded on the HESOLAR test array. All panels compared below are considered High Efficiency. Consumers curious about the most efficient solar panels on the market can compare SunPower vs LG R Series below.

Product Warranty: It is important that customers learn the difference between product warranty and power guarantee. Product warranty covers various defects. Solar panel defects are incredibly rare for premium solar panel manufacturers. Compare the top solar panel warranties in the industry below by comparing Panasonic vs SunPower Solar. Note: Warranty assumes Panasonic Enhanced Partner and SunPower Partner Status

Performance: Performance is rated by the yield per watt (nameplate rating) of each solar panel on the HESOLAR Test Array. Keep a close eye on the performance results as they are the most important values. We will continue to update the results as these technologies age.

Factors – Not Compared Below:

Weather Conditions: Our values reflect weather conditions for the Greater Austin / San Marcos TX area where the solar panels are located.

Power Guarantee (AKA Performance Warranty): Guarantees power output for a specified amount of time. Power guarantees are difficult to prove without dc-optimizers or micro inverters.

Warranty Reliability: Solar Panel manufacturers are in a highly competitive environment and we have seen numerous bankruptcies over the years. As an installation company, we add value to companies like LG and Panasonic that have a diverse portfolio and can survive solar market fluctuations.

Ranked Comparison (1=Worst, 10=Best)

How we rankPansonic, LG, SunPower, QCell, and Solaria in the 2019 solar panels market.

QCell 325W Panasonic 330W LG NeON2 335W Solaria 350W SunPower 360W LG NeON R 365W
Cost 10 8 7 6 4 5
Efficiency 6 8 8 7 10 10
Warranty 5 10 10 10 10 10
Performance 7 8 9 7 8 10

Overall Rank 28 34 34 30 32 35