Best Solar Stocks to Buy Now (2026)
Top solar stocks in 2026 ranked by overall Zen Rating. "A" Rated stocks have returned an average of +32.52% per year, and are the best solar stocks to buy now. Learn More.

Industry: Solar
F
Solar is Zen Rated F and is the 117th ranked industry out of 145 stock market industries
Learn how the Zen Ratings work
Ticker
Company
Exchange
Industry
Zen Rating
Market Cap
Price
1d %
EBITDA
P/E
D/E
Country
DD Score
TOYO
TOYO CO LTD
NASDAQ
Solar
$481.80M$12.766.87%$97.94M13.02x2.97
Cayman Islands
SUNE
SUNATION ENERGY INC
NASDAQ
Solar
$5.45M$1.604.58%-$6.96M-0.37x0.98
United States
TYGO
TIGO ENERGY INC
NASDAQ
Solar
$293.77M$3.87-6.07%$13.70M55.29x0.83
United States
SHLS
SHOALS TECHNOLOGIES GROUP INC
NASDAQ
Solar
$1.53B$9.115.56%$71.23M45.55x0.71
United States
NXT
NEXTPOWER INC
NASDAQ
Solar
$20.25B$136.378.77%$784.19M33.92x0.77
United States
FSLR
FIRST SOLAR INC
NASDAQ
Solar
$25.21B$234.602.87%$2.31B15.12x0.35
United States
JKS
JINKOSOLAR HOLDING CO LTD
NYSE
Solar
$1.36B$26.044.75%N/A-2.59x6.01
China
BEEM
BEAM GLOBAL
NASDAQ
Solar
$39.10M$1.859.47%-$23.86M-1.15x0.72
United States
ASTI
ASCENT SOLAR TECHNOLOGIES INC
NASDAQ
Solar
$46.65M$4.936.02%-$7.64M-2.00x0.18
United States
ENPH
ENPHASE ENERGY INC
NASDAQ
Solar
$5.54B$42.0012.06%$228.71M41.18x1.47
United States
SEDG
SOLAREDGE TECHNOLOGIES INC
NASDAQ
Solar
$2.60B$42.775.81%-$247.79M-6.97x4.50
Israel
ARRY
ARRAY TECHNOLOGIES INC
NASDAQ
Solar
$1.35B$8.797.59%$33.21M-10.59x-5.63
United States
TURB
TURBO ENERGY SA
NASDAQ
Solar
$13.22M$1.20-6.98%-$2.85M-5.15x7.98
Spain
VIVO
VIVOPOWER PLC
NASDAQ
Solar
$52.99M$4.2335.14%-$5.93M16.92x3.83
United States
RUN
SUNRUN INC
NASDAQ
Solar
$3.45B$14.462.55%$2.30B5.90x5.33
United States
SPWR
SUNPOWER INC
NASDAQ
Solar
$134.25M$1.069.28%-$8.19M-2.04x-3.68
Cayman Islands
FTCI
FTC SOLAR INC
NASDAQ
Solar
$69.30M$4.333.10%-$29.97M-1.35x-16.91
United States
CSIQ
CANADIAN SOLAR INC
NASDAQ
Solar
$1.36B$20.053.30%$643.24M-8.02x3.88
Canada
SPRU
SPRUCE POWER HOLDING CORP
NYSE
Solar
$59.96M$3.306.11%$55.08M-2.29x5.64
United States
PN
SKYCORP SOLAR GROUP LTD
NASDAQ
Solar
$6.63M$4.9112.61%-$1.68M-2.46x1.16
China
ZEO
ZEO ENERGY CORP
NASDAQ
Solar
$48.12M$0.83-3.04%-$4.37M-1.48x1.77
United States
SMXT
SOLARMAX TECHNOLOGY INC
NASDAQ
Solar
$29.88M$0.53-4.20%-$4.49M-4.04x-8.48
United States

Solar Stocks FAQ

What are the best solar stocks to buy right now in May 2026?

According to Zen Ratings, our proprietary rating system that evaluates 115 factors proven to drive growth in stocks and assigns each stock in our system an overall letter grade as well as 7 individual Component Grades for Value, Growth, Momentum, Sentiment, Safety, Financials, and proprietary AI algorithms, the 3 best solar energy stocks to buy right now are:

1. Toyo Co (NASDAQ:TOYO)


Toyo Co (NASDAQ:TOYO) is the #1 top solar stock out of 22 with a Zen Rating of A. Stocks with a rating of A have had an average return of +32.52% per year. Learn more.

The Component Grade breakdown for Toyo Co (NASDAQ:TOYO) is: Value: A, Growth: A, Momentum: A, Sentiment: A, Safety: F, Financials: B, and AI: C.

Toyo Co (NASDAQ:TOYO) has a Due Diligence Score of 70, which is 41 points higher than the solar industry average of 29.

TOYO passed 24 out of 33 due diligence checks and has strong fundamentals. Toyo Co has seen its stock return 262.5% over the past year, overperforming other solar stocks by 232 percentage points.

Toyo Co has an average 1 year price target of $16.50, an upside of 29.31% from Toyo Co's current stock price of $12.76.

Toyo Co stock has a consensus Strong Buy recommendation according to Wall Street analysts. Of the 2 analysts covering Toyo Co, 50% have issued a Strong Buy rating, 50% have issued a Buy, 0% have issued a hold, while 0% have issued a Sell rating, and 0% have issued a Strong Sell.

2. Sunation Energy (NASDAQ:SUNE)


Sunation Energy (NASDAQ:SUNE) is the #2 top solar stock out of 22 with a Zen Rating of B. Stocks with a rating of B have had an average return of +19.88% per year. Learn more.

The Component Grade breakdown for Sunation Energy (NASDAQ:SUNE) is: Value: C, Growth: A, Momentum: C, Sentiment: C, Safety: C, Financials: B, and AI: D.

Sunation Energy (NASDAQ:SUNE) has a Due Diligence Score of 15, which is -14 points lower than the solar industry average of 29. Although this number is below the industry average, our proven quant model rates SUNE as a "B".

SUNE passed 6 out of 38 due diligence checks and has weak fundamentals. Sunation Energy has seen its stock lose -17.1% over the past year, underperforming other solar stocks by -48 percentage points.

3. Tigo Energy (NASDAQ:TYGO)


Tigo Energy (NASDAQ:TYGO) is the #3 top solar stock out of 22 with a Zen Rating of C. Stocks with a rating of C have had an average return of +7.53% per year. Learn more.

The Component Grade breakdown for Tigo Energy (NASDAQ:TYGO) is: Value: C, Growth: C, Momentum: A, Sentiment: A, Safety: D, Financials: C, and AI: D.

Tigo Energy (NASDAQ:TYGO) has a Due Diligence Score of 48, which is 19 points higher than the solar industry average of 29.

TYGO passed 16 out of 33 due diligence checks and has strong fundamentals. Tigo Energy has seen its stock return 311.7% over the past year, overperforming other solar stocks by 281 percentage points.

Are solar stocks a good buy now?

46.15% of solar stocks rated by analysts are a buy right now. On average, analysts expect solar stocks to rise by 6.15% over the next year.

5.56% of solar stocks have a Zen Rating of A (Strong Buy), 5.56% of solar stocks are rated B (Buy), 61.11% are rated C (Hold), 22.22% are rated D (Sell), and 5.56% are rated F (Strong Sell).

What is the average p/e ratio of the solar industry?

The average P/E ratio of the solar industry is 21.3x.

What are the most undervalued solar stocks?

Based on the Valuation rating, one of the 7 components of a stocks overall Zen Ratings grade, which evaluates factors including estimated earnings yield, earnings before interest and taxes/enterprise value, cash flow yield, free cash flow to price, and price-to-earnings growth (PEG ratio), the 3 most undervalued solar stocks right now are:

1. Toyo Co (NASDAQ:TOYO)


Toyo Co (NASDAQ:TOYO) is the most undervalued solar stock based on its Valuation Rating of A. Valuation is one of 7 Component Grades used to calculate the overall Zen Rating.

Toyo Co has a valuation score of 57, which is 38 points higher than the solar industry average of 19. It passed 4 out of 7 valuation due diligence checks.

Toyo Co's stock has gained 262.5% in the past year. It has overperformed other stocks in the solar industry by 232 percentage points.

2. First Solar (NASDAQ:FSLR)


First Solar (NASDAQ:FSLR) is the second most undervalued solar stock based on its Valuation Rating of B. Valuation is one of 7 Component Grades used to calculate the overall Zen Rating.

First Solar has a valuation score of 57, which is 38 points higher than the solar industry average of 19. It passed 4 out of 7 valuation due diligence checks.

First Solar's stock has gained 22.44% in the past year. It has underperformed other stocks in the solar industry by -8 percentage points.

3. Enphase Energy (NASDAQ:ENPH)


Enphase Energy (NASDAQ:ENPH) is the third most undervalued solar stock based on its Valuation Rating of B. Valuation is one of 7 Component Grades used to calculate the overall Zen Rating.

Enphase Energy has a valuation score of 43, which is 24 points higher than the solar industry average of 19. It passed 3 out of 7 valuation due diligence checks.

Enphase Energy's stock has dropped -7.96% in the past year. It has underperformed other stocks in the solar industry by -39 percentage points.

Why are solar stocks up?

Solar stocks were up 5.59% in the last day, and up 8% over the last week. Enphase Energy was the among the top gainers in the solar industry, gaining 12.06% yesterday.

Enphase Energy shares are trading higher. The company announced it opened U.S. pre-orders for the new IQ9S-3P Commercial Microinverter.
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Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.