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LIGTHSUN
by Smartpower

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Complete systems — panels, inverter and professional installation included.

HomeBuying Guides

A Practical Guide for Homeowners Comparing Solar Kits

June 16, 2026 8 min read
A Practical Guide for Homeowners Comparing Solar Kits

Choosing a whole-home solar kit is one of the biggest energy decisions a homeowner will make. Get it right and you lock in decades of lower bills; get it wrong and you'll either overspend on a system you don't need or undersize one that barely dents your monthly costs. This guide walks through everything that actually matters when comparing kits.

1. Start with your actual energy usage

Before looking at a single panel, pull the last 12 months of electricity bills. Summers spike usage hard, so a yearly average is far more useful than a single month. Add up your annual kilowatt-hours and divide by 365 to get your daily consumption — that number drives every sizing decision that follows.

2. Understand what's actually included

A real solar kit isn't just panels. You're looking for Tier-1 monocrystalline panels, a hybrid inverter (so you can add a battery later), mounting hardware, permitting, and professional installation. If a quote leaves any of those out, it's not a complete system — it's a parts list with hidden costs waiting to surprise you.

3. Match the kit to your home size

A 4-panel system offsets a small home up to about 1,200 sq ft. An 8-panel kit is the best-seller for average 1,200–2,000 sq ft homes. 16 panels cover large 2,000–3,000 sq ft family homes, and a 20-panel system delivers whole-home energy independence for estates over 3,000 sq ft. Going bigger than you need just extends your payback period.

4. Compare the real cost of ownership

Look at three numbers together: the down payment, the fixed monthly payment, and the total system cost. A low monthly payment with a huge total can cost more over the loan term than a slightly higher monthly with a lower total. LIGTHSUN shows all three upfront so there's no math to do later.

5. Warranty and workmanship matter as much as hardware

Tier-1 panels come with a 25-year warranty, but that only means something if the company installing them is still around to honor it. Look for a licensed, insured installer with a track record — and make sure the warranty covers workmanship, not just the equipment.

The bottom line: the right kit is the one that matches your home's size, your energy usage, and your budget — installed by a company you can reach in five years. Get a free quote, compare the three numbers, and don't sign anything that hides the total cost.

Buying Guides

How Many Solar Panels Do I Need?

July 13, 2026 6 min read
How Many Solar Panels Do I Need?

"How many solar panels do I need?" is the single most common question we hear — and the honest answer is that it depends on three things: how much electricity you use, how much of that bill you want to offset, and how much sun your roof gets.

Step 1: Find your daily energy usage

Grab a recent electricity bill and look for the monthly kWh usage. Divide by 30 to get your daily average. A typical home uses about 30–40 kWh per day, but summer months can push that well above 60 kWh per day with air conditioning running nonstop.

Step 2: Account for Texas sunlight

Most areas get roughly 4.5 to 5.5 peak sun hours per day on average — among the best in the country. To estimate how many watts of panels you need, divide your daily kWh by your local peak sun hours. A home using 40 kWh/day in a 5 sun-hour zone needs about 8,000 watts (8 kW) of panels.

Step 3: Convert watts to panels

Modern monocrystalline panels produce about 400 watts each. So an 8,000-watt system needs roughly 20 panels. Here's a quick reference:

  • Small home (up to 1,200 sq ft): 4 panels (1.6 kW) — offsets 30–40% of an average bill
  • Average home (1,200–2,000 sq ft): 8 panels (3.2 kW) — offsets 60–70%
  • Large home (2,000–3,000 sq ft): 16 panels (6.4 kW) — offsets 80–90%
  • Estate (3,000+ sq ft): 20 panels (8.0 kW) — near 100% offset

Step 4: Decide how much to offset

You don't have to zero out your bill completely. Many families start with a 4 or 8-panel kit to knock 50–70% off their bill, then expand later. LIGTHSUN kits are battery-ready, so you can add storage or more panels without replacing your inverter.

The fastest way to know for sure is a free assessment — we look at your bills, your roof orientation, and any shading, then tell you exactly which kit fits. No guesswork, no pressure.

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