You just spent $15,000 on a Tesla Powerwall 3, and your installer says “7 panels is enough.” But come August in Texas, your battery is barely hitting 60%. Did you get ripped off?
In this video, we debunk the common “simple math” installers use to size solar systems and show you the ACTUAL math required to keep your Powerwall charged and your home running. We break down the three hidden factors most calculators forget (home usage, efficiency losses, and seasonal gaps) and walk through two real-world Texas case studies to help you decide exactly how many panels you need.
Whether you want 100% energy independence or just a lower bill, this guide will give you the framework to evaluate any solar quote.
Helpful Links: Watch our Battery Sizing Guide: [Link to your other video] Get a Free Professional Sizing Consultation: https://IntegrateSun.com
Timestamps:
0:00 – The $15,000 Powerwall Mistake
0:57 – Why Every Installer Gives You a Different Number
1:17 – 3 Things Online Calculators Forget (Usage, Efficiency, Seasons)
2:33 – The “Simple Formula” (And Why It fails)
3:19 – Why 7 Panels is Almost Never Enough
4:15 – Case Study 1: The Rodriguez Family (100% Offset Goal)
5:43 – Real World Results: 100% Offset System
6:08 – Case Study 2: The Chen Family (70% Offset Goal)
7:19 – Real World Results: 70% Offset System
7:55 – The Truth About Undersized Systems in Texas
8:12 – 5 Steps to Calculate Your Own System Size
9:02 – How to Get an Honest Second Opinion
📍 ABOUT INTEGRATESUN:
Texas-based solar installer with 25+ years combined experience. Tesla Powerwall certified. Specializing in battery backup systems sized correctly the first time.
We don’t under-size to win your business. We don’t over-size to maximize our commission. We size systems that actually work for your specific situation.
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How many panels does YOUR installer recommend? Drop your specs and I’ll tell you if it sounds right.
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