US residential solar · 2026 data

2,000 sq ft Home — Solar Guide for All 50 States

Q: "How many solar panels does a 2,000 sq ft house need?"

"Nationally, a 2,000 sq ft home (~899 kWh/month) needs about **21 panels** (8.0 kW) at average US rates and sun hours. State totals range from **14** in Arizona to **30** in Alaska."

Q: "Which state has the fastest solar payback for 2,000 sq ft?"

"**Hawaii** leads at **3.3-year** payback (6.0 kW, $12,600 after ITC). **Washington** is slowest at **18.7 years**."

Q: "What does solar cost for a 2,000 sq ft home after the 30% tax credit?"

"US average net cost is **$16,800** for a **8.0 kW** system ($24,000 gross). State costs range from **$12,600** (Hawaii) to **$24,400** (Alaska)."

Q: "Is a 2,000 sq ft sizing guide different from a monthly bill guide?"

"Yes — same end goal, different starting point. 2,000 sq ft maps to roughly **$150/month** nationally. Use this hub for **home size**; use the [$150/month bill hub](/guides/solar-panels-150-month-bill-by-state/) if you know your utility bill."

Q: "Where can I read the full national 2,000 sq ft methodology?"

"See the [national 2,000 sq ft guide](/guides/how-much-do-solar-panels-cost-2000-sq-ft-home/) for roof orientation, panel wattage, and calculator walkthrough. Each state link below adds **local rate \u0026 sun hours**."

SAVE

$0+

Over 25 Years

$16,800 Cost after ITC

11.0 yrs Payback

8.0 kW Typical system

Most homeowners need:

19–24 panels nationally
8.0 kW average system
$16,800 after tax credits
11.0 year national payback

✓ Updated monthly ✓ NREL data ✓ Reviewed by solar experts ✓ IRS tax credit included

Updated June 9, 2026 · 3 min read ·By Mark Sullivan ·Reviewed by Green Energy Calculators Editorial Team

Calculate System Size National 2,000 sq ft Guide

Without solar vs with solar

25-year cost comparison for a $300/month US electric bill.

Without solar

25-year utility cost

$64,100

Rates rise ~3% per year (EIA avg.)

With solar

Net system cost

$16,800

After 30% federal ITC

Your savings

Difference

+$47,300

Estimated lifetime advantage

Author Mark Sullivan

Reviewed by Green Energy Calculators Editorial Team

Last updated Jun 9, 2026

Sizing formula kW = Annual kWh ÷ (Peak Sun Hours × 365 × 0.82)

A 2,000 square foot home in the US typically needs 21 solar panels (8.0 kW) at national average electricity rates and sun hours — $16,800 after the 30% ITC with 11.0-year payback. State-by-state, system size ranges from 5.5 kW in Arizona to 11.6 kW in Alaska, and payback spans 3.3–18.7 years.

Start here: National 2,000 sq ft guide · System size calculator · $150/month bill by state

National Snapshot: 2,000 sq ft Solar in 2026

Metric	US average (2,000 sq ft)
Est. monthly usage	~899 kWh
System size	8.0 kW
Panels (400W)	21
Net cost after ITC	$16,800
Simple payback	11.0 years
25-year savings	$47,300+

Formula: kW = Annual kWh ÷ (Peak sun hours × 365 × 0.82)

Fastest & Slowest Payback States for 2,000 sq ft Homes

	Fastest payback	Slowest payback
State	Hawaii	Washington
System	6.0 kW · 16 panels	9.0 kW · 23 panels
After ITC	$12,600	$18,900
Payback	3.3 yrs	18.7 yrs

High electricity rates (e.g. Hawaii, California, Massachusetts) often beat sunny low-rate states for 2,000 sq ft payback.

2,000 sq ft Home — Solar by State (2026)

State	System	Panels	After ITC	Payback
Alabama	6.8 kW	18	$14,300	11.4 yrs
Alaska	11.6 kW	30	$24,400	11.1 yrs
Arizona	5.5 kW	14	$11,600	9.4 yrs
Arkansas	7.2 kW	19	$15,100	13.6 yrs
California	6.2 kW	16	$13,100	4.7 yrs
Colorado	6.6 kW	17	$13,800	10.3 yrs
Connecticut	8.6 kW	22	$18,000	7.7 yrs
Delaware	8.0 kW	21	$16,800	12.1 yrs
Florida	6.3 kW	16	$13,300	10.5 yrs
Georgia	6.9 kW	18	$14,600	11.9 yrs
Hawaii	6.0 kW	16	$12,600	3.3 yrs
Idaho	7.2 kW	19	$15,100	14.7 yrs
Illinois	8.2 kW	21	$17,200	11.7 yrs
Indiana	8.0 kW	21	$16,800	12.8 yrs
Iowa	8.0 kW	21	$16,800	15.1 yrs
Kansas	7.2 kW	19	$15,100	12.2 yrs
Kentucky	7.8 kW	20	$16,500	15.4 yrs
Louisiana	6.7 kW	17	$14,000	13.1 yrs
Maine	8.4 kW	21	$17,600	8.5 yrs
Maryland	8.0 kW	21	$16,800	11.8 yrs
Massachusetts	8.6 kW	22	$18,000	7.8 yrs
Michigan	8.8 kW	22	$18,500	11.1 yrs
Minnesota	8.0 kW	21	$16,800	12.1 yrs
Mississippi	6.9 kW	18	$14,600	12.7 yrs
Missouri	7.5 kW	19	$15,800	13.2 yrs
Montana	7.5 kW	19	$15,800	13.4 yrs
Nebraska	7.5 kW	19	$15,800	14.7 yrs
Nevada	5.6 kW	15	$11,800	8.8 yrs
New Hampshire	8.6 kW	22	$18,000	8.8 yrs
New Jersey	8.2 kW	21	$17,200	10.4 yrs
New Mexico	5.8 kW	15	$12,200	9.0 yrs
New York	8.4 kW	21	$17,600	8.4 yrs
North Carolina	6.9 kW	18	$14,600	12.1 yrs
North Dakota	8.0 kW	21	$16,800	16.4 yrs
Ohio	8.4 kW	21	$17,600	12.8 yrs
Oklahoma	6.8 kW	18	$14,300	13.2 yrs
Oregon	8.0 kW	21	$16,800	14.2 yrs
Pennsylvania	8.6 kW	22	$18,000	11.4 yrs
Rhode Island	8.4 kW	21	$17,600	7.6 yrs
South Carolina	6.8 kW	18	$14,300	11.3 yrs
South Dakota	7.5 kW	19	$15,800	14.1 yrs
Tennessee	7.2 kW	19	$15,100	13.2 yrs
Texas	6.4 kW	17	$13,500	10.4 yrs
Utah	6.2 kW	16	$13,100	12.4 yrs
Vermont	8.8 kW	22	$18,500	9.6 yrs
Virginia	7.7 kW	20	$16,100	12.3 yrs
Washington	9.0 kW	23	$18,900	18.7 yrs
West Virginia	8.6 kW	22	$18,000	15.5 yrs
Wisconsin	8.4 kW	21	$17,600	11.0 yrs
Wyoming	7.2 kW	19	$15,100	14.0 yrs

Estimates use EIA state rates, NREL sun hours, and typical kWh/sqft intensity. National methodology.

How Sq Ft Sizing Compares to Monthly Bill Guides

2,000 sq ft maps to roughly $147/month in utility spend nationally — close to our $150/month bill tier.

Sizing method	Best when you know…	National guide
Sq ft (this page)	Home size	2,000 sq ft
Monthly bill	Utility bill amount	$150/mo

Use both: if your actual bill differs from the sq ft estimate, trust your kWh usage from the utility statement.

Frequently asked questions

Direct answers for US homeowners — sized for a 2,000 sq ft home.

How many solar panels does a 2,000 sq ft house need?

Nationally, a 2,000 sq ft home (~899 kWh/month) needs about **21 panels** (8.0 kW) at average US rates and sun hours. State totals range from **14** in Arizona to **30** in Alaska.

Which state has the fastest solar payback for 2,000 sq ft?

What does solar cost for a 2,000 sq ft home after the 30% tax credit?

Is a 2,000 sq ft sizing guide different from a monthly bill guide?

Where can I read the full national 2,000 sq ft methodology?

$150/month electric bill by state

System size and payback vary by electricity rate and sun hours — see your state.

CA California $150/mo · 29.4¢/kWh TX Texas $150/mo · 13.8¢/kWh FL Florida $150/mo · 13.5¢/kWh AZ Arizona $150/mo · 13.2¢/kWh NC North Carolina $150/mo · 12.8¢/kWh NY New York $150/mo · 22.4¢/kWh MA Massachusetts $150/mo · 24.5¢/kWh CO Colorado $150/mo · 14.2¢/kWh

Compare all 50 states for $150/mo →

Same usage, bill-based guide

Your target maps to roughly a $150/month electric bill nationally.

$150 $150/month electric bill guide Panels · cost · payback · by state →

Popular utility companies

Solar rules and net metering vary by utility — not just by state.

PG&E California Duke Energy NC · FL · Midwest Florida Power & Light Florida Oncor Texas APS Arizona Georgia Power Georgia

Methodology & data sources

Calculation method: System size uses NREL PVWatts derate factor (0.82). Costs based on SEIA 2026 installed cost ($2.75–$3.20/W). Payback uses net cost after 30% federal ITC (IRC Section 25D). Savings assume full-retail net metering unless noted.

Official sources: EIA state electricity rates · NREL PVWatts · Energy.gov ITC guide · DSIRE incentives · SEIA market data · IRS Publication 5695.

All figures are estimates for educational purposes — not tax, legal, or investment advice. Consult a licensed installer and CPA for your situation.