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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
________________________________________________
FORM 8-K
________________________________________________

CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 26, 2023
________________________________________________
enpha06.jpg
ENPHASE ENERGY, INC.
(Exact name of registrant as specified in its charter)
________________________________________________
Delaware 001-35480 20-4645388
(State or other jurisdiction of Incorporation) (Commission File No.) (IRS Employer Identification No.)

47281 Bayside Parkway
Fremont, CA 94538
(Address of principal executive offices, including zip code)
(707) 774-7000
(Registrant’s telephone number, including area code)
Not Applicable
(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Stock, $0.00001 par value per shareENPHNasdaq Global Market
Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. 





Item 2.02. Results of Operations and Financial Condition.
On October 26, 2023, Enphase Energy, Inc. (the “Company”) issued a press release announcing the Company’s financial results for the third quarter ended September 30, 2023. A copy of the press release is furnished as Exhibit 99.1 to this report. Information on the Company’s website is not, and will not be deemed, a part of this report or incorporated into this or any other filings that the Company makes with the Securities and Exchange Commission.
The information in Item 2.02 of this Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or subject to the liabilities of that Section or Sections 11 and 12(a)(2) of the Securities Act of 1933, as amended (the “Securities Act”), and shall not be incorporated by reference in any registration statement or other document filed under the Securities Act or the Exchange Act, whether made before or after the date hereof, regardless of any general incorporation language in such filings, except as shall be expressly set forth by specific reference in such a filing.
Item 9.01. Financial Statements and Exhibits.
(d)Exhibits. 
Exhibit NumberDescription
104Cover Page Interactive Data File (embedded within the Inline XBRL document)




SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date:October 26, 2023ENPHASE ENERGY, INC.
 By:/s/ Mandy Yang
  Mandy Yang
  Chief Financial Officer
(Principal Financial Officer and Principal Accounting Officer)




Exhibit 99.1
enpha06a.jpg
Enphase Energy Reports Financial Results for the Third Quarter of 2023
FREMONT, Calif., Oct. 26, 2023 - Enphase Energy, Inc. (NASDAQ: ENPH), a global energy technology company and the world’s leading supplier of microinverter-based solar and battery systems, announced today financial results for the third quarter of 2023, which included the summary below from its President and CEO, Badri Kothandaraman.
We reported quarterly revenue of $551.1 million in the third quarter of 2023, along with 48.4% for non-GAAP gross margin. We shipped 3,905,239 microinverters, or approximately 1,585.6 megawatts DC, and 86.2 megawatt hours of IQ Batteries.
Financial highlights for the third quarter of 2023 are listed below:
Quarterly revenue of $551.1 million
GAAP gross margin of 47.5%; non-GAAP gross margin of 48.4%, inclusive of net IRA benefit of 2.6%
GAAP operating income of $118.0 million; non-GAAP operating income of $167.6 million
GAAP net income of $114.0 million; non-GAAP net income of $141.8 million
GAAP diluted earnings per share of $0.80; non-GAAP diluted earnings per share of $1.02
Free cash flow of $122.0 million; ending cash, cash equivalents, and marketable securities of $1.78 billion
Our revenue and earnings for the third quarter of 2023 are provided below, compared with the prior quarter:
(In thousands, except per share and percentage data)
GAAPNon-GAAP
Q3 2023Q2 2023Q3 2022Q3 2023Q2 2023Q3 2022
Revenue$551,082 $711,118 $634,713 $551,082 $711,118 $634,713 
Gross margin47.5 %45.5 %42.2 %48.4 %46.2 %42.9 %
Operating expenses$144,024 $153,022 $132,475 $99,027 $98,162 $78,587 
Operating income$117,989 $170,320 $135,441 $167,593 $230,468 $193,962 
Net income$113,953 $157,191 $114,812 $141,849 $205,599 $175,513 
Basic EPS$0.84 $1.15 $0.85 $1.04 $1.51 $1.29 
Diluted EPS$0.80 $1.09 $0.80 $1.02 $1.47 $1.25 
Total revenue for the third quarter of 2023 was $551.1 million, compared to $711.1 million in the second quarter of 2023. Due to macroeconomic conditions, our revenue in the United States for the third quarter of 2023 decreased approximately 16%, compared to the second quarter of 2023. Our revenue in Europe decreased approximately 34%, compared to the second quarter of 2023 due to high inventory at our distribution partners along with a softening in demand in our key markets – the Netherlands, France, and Germany.
Our non-GAAP gross margin was 48.4% in the third quarter of 2023, compared to 46.2% in the second quarter of 2023, driven by increased net IRA benefit. Our non-GAAP operating expenses were $99.0 million in the third quarter of 2023, compared to $98.2 million in the second quarter of 2023. Our non-GAAP operating income was $167.6 million in the third quarter of 2023, compared to $230.5 million in the second quarter of 2023.
We exited the third quarter of 2023 with $1.78 billion in cash, cash equivalents, and marketable securities and generated $145.9 million in cash flow from operations in the third quarter of 2023.
In July 2023, our Board of Directors approved a share repurchase program with authorization to purchase up to $1.0 billion of shares of our common stock. In the third quarter of 2023, we repurchased 846,648 shares of our common stock at an average price of $129.92 per share for a total of approximately $110.0 million.
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Our capital expenditures were $23.8 million in the third quarter of 2023, compared to $44.0 million in the second quarter of 2023. Capital expenditure requirements decreased as we largely completed building out our U.S. manufacturing lines.
IQ8 Microinverters constituted approximately 86% of all our microinverter shipments during the third quarter of 2023. We recently started shipping IQ8 Microinverters into the United Kingdom, Brazil, Sweden, Denmark, South Africa, India, and Greece, and are now shipping IQ8 Microinverters in 15 countries worldwide.
Our IQ Battery shipments increased to 86.2 megawatt hours in the third quarter of 2023, from 82.3 megawatt hours in the second quarter of 2023. We recently introduced IQ Batteries into Sweden, Denmark, and Greece, and launched the IQBattery 5P in the United Kingdom during the third quarter. We now ship the IQ Battery 5P to Australia, the United States, Puerto Rico, and the United Kingdom. More than 4,100 installers worldwide are certified to install our IQ Batteries.
We began shipments of our microinverters in the third quarter of 2023 from our contract manufacturer Salcomp in Arlington, Texas, our third contract manufacturer in the United States. We shipped approximately 531,000 microinverters to customers in the third quarter from our three contract manufacturers – Flex in South Carolina, Foxconn in Wisconsin, and Salcomp in Texas.
Solargraf℠, our cloud-based design and proposal software platform, now provides NEM 3.0 functionality for solar and battery systems in California. We began offering 3D and shading features and continue to make progress on new features and functions. The software platform is now available to installers in the United States, Brazil, Germany, and Austria.
BUSINESS HIGHLIGHTS
On Oct. 23, 2023, Enphase Energy announced that it entered the solar market in Greece with the introduction of IQ8 Microinverters, with peak output AC power of 384 W, and IQ Batteries.
On Oct. 19, 2023, Enphase Energy announced the availability in the United States and Canada of the Enphase® IQ® EV Charger, which is Wi-Fi equipped, includes smart control and monitoring capabilities, and can seamlessly integrate into Enphase’s solar and battery system.
On Oct. 16, 2023, Enphase Energy announced that it started shipping IQ8 Microinverters, with peak output AC power of 480 W, in India to support newer high-powered solar modules.
On Oct. 12, 2023, Enphase Energy announced that it entered the solar market in South Africa with the introduction of IQ8 Microinverters for grid-tied residential and small commercial applications, with peak output AC power of 480 W, to support newer high-powered solar modules.
On Oct. 9, 2023, Enphase Energy announced that it entered the solar markets in Sweden and Denmark through an expanded agreement with German-based climate tech startup 1KOMMA5 to offer Enphase Energy System™, powered by IQ8 Microinverters and IQ Batteries.
On Oct. 2, 2023, Enphase Energy announced the launch of the IQ Combiner 3P in nine European countries to dramatically improve the experience of installing an Enphase Energy System and deliver significant installation time savings.
On Sept. 21, 2023, Enphase Energy announced the launch of its most powerful Enphase Energy System to-date, featuring the new IQ Battery 5P and IQ8 Microinverters, for customers in the United Kingdom.
On Aug. 15, 2023, Enphase Energy announced a comprehensive solution that can maximize return-on-investment (ROI) for homeowners under California’s new net billing tariff, NEM 3.0.
Enphase Energy recently announced the growing deployments of Enphase systems powered by IQ Microinverters in Italy; IQ Microinverters in South Carolina; and IQ8 Microinverters and the IQ Battery 5P in Australia.
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FOURTH QUARTER 2023 FINANCIAL OUTLOOK
For the fourth quarter of 2023, Enphase Energy estimates both GAAP and non-GAAP financial results as follows:
Revenue to be within a range of $300.0 million to $350.0 million, which includes shipments of 80 to 100 megawatt hours of IQ Batteries
GAAP gross margin to be within a range of 46.0% to 49.0% with net IRA benefit and 38.0% to 41.0% before net IRA benefit
Non-GAAP gross margin to be within a range of 48.0% to 51.0% with net IRA benefit and 40.0% to 43.0% before net IRA benefit. Non-GAAP gross margin excludes stock-based compensation expense and acquisition related amortization
Net IRA benefit to be within a range of $26.0 to $28.0 million based on estimated shipments of one million units of U.S. manufactured microinverters
GAAP operating expenses to be within a range of $142.0 million to $146.0 million
Non-GAAP operating expenses to be within a range of $85.0 million to $89.0 million, excluding $57.0 million estimated for stock-based compensation expense and acquisition related expenses and amortization
GAAP and non-GAAP annualized effective tax rate with IRA benefit is expected to be within a range of 21.0% to 23.0%
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Use of non-GAAP Financial Measures
Enphase Energy has presented certain non-GAAP financial measures in this press release. Generally, a non-GAAP financial measure is a numerical measure of a company’s performance, financial position, or cash flows that either exclude or include amounts that are not normally excluded or included in the most directly comparable measure calculated and presented in accordance with generally accepted accounting principles in the United States (GAAP). Reconciliation of each non-GAAP financial measure to the most directly comparable GAAP financial measure can be found in the accompanying tables to this press release. Non-GAAP financial measures presented by Enphase Energy include non-GAAP gross profit, gross margin, operating expenses, income from operations, net income, net income per share (basic and diluted), and free cash flow.
These non-GAAP financial measures do not reflect a comprehensive system of accounting, differ from GAAP measures with the same captions and may differ from non-GAAP financial measures with the same or similar captions that are used by other companies. In addition, these non-GAAP measures have limitations in that they do not reflect all of the amounts associated with Enphase Energy’s results of operations as determined in accordance with GAAP. As such, these non-GAAP measures should be considered as a supplement to, and not as a substitute for, or superior to, financial measures calculated in accordance with GAAP. Enphase Energy uses these non-GAAP financial measures to analyze its operating performance and future prospects, develop internal budgets and financial goals, and to facilitate period-to-period comparisons. Enphase Energy believes that these non-GAAP financial measures reflect an additional way of viewing aspects of its operations that, when viewed with its GAAP results, provide a more complete understanding of factors and trends affecting its business.
As presented in the “Reconciliation of Non-GAAP Financial Measures” tables below, each of the non-GAAP financial measures excludes one or more of the following items for purposes of calculating non-GAAP financial measures to facilitate an evaluation of Enphase Energy’s current operating performance and a comparison to its past operating performance:
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Stock-based compensation expense. Enphase Energy excludes stock-based compensation expense from its non-GAAP measures primarily because they are non-cash in nature. Moreover, the impact of this expense is significantly affected by Enphase Energy’s stock price at the time of an award over which management has limited to no control.
Acquisition related expenses and amortization. This item represents expenses incurred related to Enphase Energy’s business acquisitions, which are non-recurring in nature, and amortization of acquired intangible assets, which is a non-cash expense. Acquisition related expenses and amortization of acquired intangible assets are not reflective of Enphase Energy’s ongoing financial performance.
Restructuring and asset impairment charges. Enphase Energy excludes restructuring and asset impairment related charges due to the nature of the expenses being unplanned and arising outside the ordinary course of continuing operations. These costs primarily consist of fees paid for cash-based severance costs and asset write-downs of property and equipment, and other contract termination costs resulting from restructuring initiatives.
Non-cash interest expense. This item consists primarily of amortization of debt issuance costs and accretion of debt discount because these expenses do not represent a cash outflow for Enphase Energy except in the period the financing was secured and such amortization expense is not reflective of Enphase Energy’s ongoing financial performance.
Non-GAAP income tax adjustment. This item represents the amount adjusted to Enphase Energy’s GAAP tax provision or benefit to report the non-GAAP tax amount based on cash tax expense and reserves for periods prior to 2023. Effective January 1, 2023, Enphase Energy updated its methodology of computing the non-GAAP income tax adjustment from reporting cash tax expense and reserves to the projected non-GAAP annualized effective tax rate as Enphase Energy utilized most of its net operating loss and tax credit carryforwards in the year ended December 31, 2022 and became a significant cash taxpayer in the United States. Going forward, Enphase Energy will exclude the income tax effects of GAAP adjustments such as stock-based compensation, amortization of purchased intangibles, and other non-recurring items that are not reflective of Enphase Energy ongoing financial performance.
Free cash flow. This item represents net cash flows from operating activities less purchases of property and equipment.
Conference Call Information
Enphase Energy will host a conference call for analysts and investors to discuss its third quarter 2023 results and fourth quarter 2023 business outlook today at 4:30 p.m. Eastern Time (1:30 p.m. Pacific Time). The call is open to the public by dialing (833) 634-5018. A live webcast of the conference call will also be accessible from the “Investor Relations” section of Enphase Energy’s website at investor.enphase.com. Following the webcast, an archived version will be available on the website for approximately one year. In addition, an audio replay of the conference call will be available by calling (877) 344-7529; replay access code 1347879, beginning approximately one hour after the call.
Forward-Looking Statements
This press release contains forward-looking statements, including statements related to Enphase Energy’s expectations as to its fourth quarter of 2023 financial outlook, including revenue, storage shipments, gross margin before and after net IRA benefit, operating expenses, and annualized effective tax rate; its expectations regarding the expected net IRA benefit; its expectations on the timing of the introduction of new products into new countries globally; the capabilities, advantages, features, and performance of its technology and products; the anticipated demand for and availability of its products and services; and growth in deployments of Enphase products. These forward-looking statements are based on Enphase Energy’s current expectations and inherently involve significant risks and uncertainties. Enphase Energy’s actual results and the timing of events could differ materially from those anticipated in such forward-looking statements as a result of certain risks and uncertainties including those risks described in more detail in its most recently filed Annual Report on Form 10-K and other documents on file with the SEC from time to time and available on the SEC’s website at www.sec.gov. Enphase Energy undertakes no duty or obligation to update any forward-looking statements contained in this release as a result of new information, future events or changes in its expectations, except as required by law.
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A copy of this press release can be found on the investor relations page of Enphase Energy’s website at investor.enphase.com.
About Enphase Energy, Inc.
Enphase Energy, a global energy technology company based in Fremont, CA, is the world's leading supplier of microinverter-based solar and battery systems that enable people to harness the sun to make, use, save, and sell their own power—and control it all with a smart mobile app. The company revolutionized the solar industry with its microinverter-based technology and builds all-in-one solar, battery, and software solutions. Enphase has shipped approximately 72 million microinverters, and approximately 3.8 million Enphase-based systems have been deployed in over 145 countries. For more information, visit www.enphase.com.
© 2023 Enphase Energy, Inc. All rights reserved. Enphase Energy, Enphase, the “e” logo, IQ, IQ8, Solargraf, and certain other marks listed at https://enphase.com/trademark-usage-guidelines are trademarks or service marks of Enphase Energy, Inc. Other names are for informational purposes and may be trademarks of their respective owners.


Contact:

Zach Freedman
Enphase Energy, Inc.
Investor Relations
ir@enphaseenergy.com
5


ENPHASE ENERGY, INC.
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
(In thousands, except per share data)
(Unaudited)
Three Months EndedNine Months Ended
September 30,
2023
June 30,
2023
September 30,
2022
September 30,
2023
September 30,
2022
Net revenues$551,082 $711,118 $634,713 $1,988,216 $1,606,201 
Cost of revenues289,069 387,776 366,797 1,076,490 942,307 
Gross profit262,013 323,342 267,916 911,726 663,894 
Operating expenses:
Research and development54,873 60,043 44,188 172,045 119,163 
Sales and marketing55,357 58,405 55,257 178,383 150,189 
General and administrative33,794 34,397 32,436 104,456 102,647 
Restructuring charges— 177 594 870 594 
Total operating expenses144,024 153,022 132,475 455,754 372,593 
Income from operations117,989 170,320 135,441 455,972 291,301 
Other income (expense), net
Interest income19,669 16,526 3,680 49,235 4,936 
Interest expense(2,196)(2,219)(2,255)(6,571)(7,159)
Other income (expense), net1,883 (33)(2,611)2,276 (5,208)
Total other income (expense), net19,356 14,274 (1,186)44,940 (7,431)
Income before income taxes137,345 184,594 134,255 500,912 283,870 
Income tax provision(23,392)(27,403)(19,443)(82,895)(40,261)
Net income$113,953 $157,191 $114,812 $418,017 $243,609 
Net income per share:
Basic$0.84 $1.15 $0.85 $3.06 $1.80 
Diluted$0.80 $1.09 $0.80 $2.92 $1.70 
Shares used in per share calculation:
Basic136,165 136,607 135,633 136,491 135,056 
Diluted143,863 145,098 145,962 145,081 144,058 


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ENPHASE ENERGY, INC.
CONDENSED CONSOLIDATED BALANCE SHEETS
(In thousands)
(Unaudited)
September 30,
2023
December 31,
2022
ASSETS
Current assets:
Cash and cash equivalents$290,075 $473,244 
Marketable securities1,493,809 1,139,599 
Accounts receivable, net560,286 440,896 
Inventory174,114 149,708 
Prepaid expenses and other assets80,346 60,824 
Total current assets2,598,630 2,264,271 
Property and equipment, net173,005 111,367 
Operating lease, right of use asset, net21,164 21,379 
Intangible assets, net79,147 99,541 
Goodwill213,193 213,559 
Other assets215,275 169,291 
Deferred tax assets, net253,528 204,872 
Total assets$3,553,942 $3,084,280 
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable$90,116 $125,085 
Accrued liabilities434,825 295,939 
Deferred revenues, current114,031 90,747 
Warranty obligations, current40,750 35,556 
Debt, current94,665 90,892 
Total current liabilities774,387 638,219 
Long-term liabilities:
Deferred revenues, non-current366,032 281,613 
Warranty obligations, non-current148,116 95,890 
Other liabilities53,762 43,520 
Debt, non-current1,196,947 1,199,465 
Total liabilities2,539,244 2,258,707 
Total stockholders’ equity1,014,698 825,573 
Total liabilities and stockholders’ equity$3,553,942 $3,084,280 


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ENPHASE ENERGY, INC.
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
(In thousands)
(Unaudited)
Three Months EndedNine Months Ended
September 30,
2023
June 30,
2023
September 30,
2022
September 30,
2023
September 30,
2022
Cash flows from operating activities:
Net income$113,953 $157,191 $114,812 $418,017 $243,609 
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization19,448 17,828 14,664 53,867 42,766 
Net amortization (accretion) of premium (discount) on marketable securities5,094 (10,157)(612)(12,611)2,091 
Provision for doubtful accounts653 449 (79)1,282 52 
Asset impairment903 — — 903 1,200 
Non-cash interest expense2,114 2,106 2,065 6,254 6,090 
Net gain from change in fair value of debt securities(1,910)(1,754)(519)(5,408)(390)
Stock-based compensation43,814 54,166 52,296 157,635 153,157 
Deferred income taxes(11,499)(10,615)115 (38,295)15,732 
Changes in operating assets and liabilities:
Accounts receivable(34,752)(3,968)(46,226)(118,249)(18,680)
Inventory(8,003)(15,548)(16,185)(24,406)(72,051)
Prepaid expenses and other assets(15,383)(20,536)526 (57,376)(20,826)
Accounts payable, accrued and other liabilities9,903 24,685 32,060 117,128 42,288 
Warranty obligations8,151 34,681 9,329 57,420 32,207 
Deferred revenues13,369 40,715 25,764 105,169 63,858 
Net cash provided by operating activities145,855 269,243 188,010 661,330 491,103 
Cash flows from investing activities:
Purchases of property and equipment(23,848)(44,002)(8,948)(90,326)(30,014)
Purchases of marketable securities(470,766)(577,521)(512,176)(1,743,674)(572,237)
Maturities and sale of marketable securities494,804 557,471 184,123 1,406,608 377,156 
Investments in private companies(15,000)— (1,000)(15,000)(1,000)
Business acquisitions, net of cash acquired— — — — (27,680)
Net cash provided by (used in) investing activities(14,810)(64,052)(338,001)(442,392)(253,775)
Cash flows from financing activities:
Proceeds from exercise of equity awards and employee stock purchase plan719 556 693 1,315 5,280 
Repurchase of common stock(110,000)(200,000)— (310,000)— 
Payment of withholding taxes related to net share settlement of equity awards(8,465)(12,790)(4,589)(93,100)(19,396)
Net cash used in financing activities(117,746)(212,234)(3,896)(401,785)(14,116)
Effect of exchange rate changes on cash and cash equivalents(1,900)(326)(4,003)(322)(4,945)
Net increase (decrease) in cash and cash equivalents11,399 (7,369)(157,890)(183,169)218,267 
Cash and cash equivalents—Beginning of period278,676 286,045 495,473 473,244 119,316 
Cash and cash equivalents —End of period$290,075 $278,676 $337,583 $290,075 $337,583 
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ENPHASE ENERGY, INC.
RECONCILIATION OF NON-GAAP FINANCIAL MEASURES
(In thousands, except per share data and percentages)
(Unaudited)
Three Months EndedNine Months Ended
September 30,
2023
June 30,
2023
September 30,
2022
September 30,
2023
September 30,
2022
Gross profit (GAAP)$262,013 $323,342 $267,916 $911,726 $663,894 
Stock-based compensation2,708 3,398 3,188 9,775 8,826 
Acquisition related amortization1,899 1,890 1,445 5,686 4,189 
Gross profit (Non-GAAP)$266,620 $328,630 $272,549 $927,187 $676,909 

Gross margin (GAAP)47.5 %45.5 %42.2 %45.9 %41.3 %
Stock-based compensation0.6 0.5 0.5 0.5 0.5 
Acquisition related amortization0.3 0.2 0.2 0.2 0.3 
Gross margin (Non-GAAP)48.4 %46.2 %42.9 %46.6 %42.1 %

Operating expenses (GAAP)$144,024 $153,022 $132,475 $455,754 $372,593 
Stock-based compensation (1)
(41,106)(50,768)(49,108)(147,860)(144,331)
Acquisition related expenses and amortization(3,891)(3,884)(4,186)(11,429)(11,662)
Restructuring and asset impairment charges— (208)(594)(901)(594)
Operating expenses (Non-GAAP)$99,027 $98,162 $78,587 $295,564 $216,006 

(1) Includes stock-based compensation as follows:
Research and development
$19,285 $23,765 $17,400 $64,528 $47,395 
Sales and marketing
13,297 14,515 20,069 49,231 55,302 
General and administrative
8,524 12,488 11,639 34,101 41,634 
Total
$41,106 $50,768 $49,108 $147,860 $144,331 

Income from operations (GAAP)$117,989 $170,320 $135,441 $455,972 $291,301 
Stock-based compensation43,814 54,166 52,296 157,635 153,157 
Acquisition related expenses and amortization5,790 5,774 5,631 17,115 15,851 
Restructuring and asset impairment charges— 208 594 901 594 
Income from operations (Non-GAAP)$167,593 $230,468 $193,962 $631,623 $460,903 

Net income (GAAP)$113,953 $157,191 $114,812 $418,017 $243,609 
Stock-based compensation43,814 54,166 52,296 157,635 153,157 
Acquisition related expenses and amortization5,790 5,774 5,631 17,115 15,851 
Restructuring and asset impairment charges— 208 594 901 594 
Non-cash interest expense2,114 2,106 2,065 6,254 6,092 
Non-GAAP income tax adjustment(23,822)(13,846)115 (61,413)15,732 
Net income (Non-GAAP)$141,849 $205,599 $175,513 $538,509 $435,035 

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Three Months EndedNine Months Ended
September 30,
2023
June 30,
2023
September 30,
2022
September 30,
2023
September 30,
2022
Net income per share, basic (GAAP)$0.84 $1.15 $0.85 $3.06 $1.80 
Stock-based compensation0.32 0.40 0.39 1.15 1.13 
Acquisition related expenses and amortization0.04 0.04 0.04 0.13 0.12 
Restructuring and asset impairment charges— — — 0.01 — 
Non-cash interest expense0.02 0.02 0.01 0.04 0.05 
Non-GAAP income tax adjustment(0.18)(0.10)— (0.44)0.12 
Net income per share, basic (Non-GAAP)$1.04 $1.51 $1.29 $3.95 $3.22 
Shares used in basic per share calculation GAAP and Non-GAAP136,165 136,607 135,633 136,491 135,056 
Net income per share, diluted (GAAP)$0.80 $1.09 $0.80 $2.92 $1.70 
Stock-based compensation0.32 0.39 0.37 1.17 1.11 
Acquisition related expenses and amortization0.04 0.05 0.05 0.12 0.12 
Restructuring and asset impairment charges— 0.01 0.01 0.01 0.01 
Non-cash interest expense0.02 0.02 0.02 0.04 0.05 
Non-GAAP income tax adjustment(0.16)(0.09)— (0.40)0.12 
Net income per share, diluted (Non-GAAP) (2)
$1.02 $1.47 $1.25 $3.86 $3.11 
Shares used in diluted per share calculation GAAP143,863 145,098 145,962 145,081 144,058 
Shares used in diluted per share calculation Non-GAAP (3)
138,535 139,770 140,634 139,753 139,983 
Net cash provided by operating activities (GAAP)$145,855 $269,243 $188,010 $661,330 $491,103 
Purchases of property and equipment(23,848)(44,002)(8,948)(90,326)(30,014)
Free cash flow (Non-GAAP)$122,007 $225,241 $179,062 $571,004 $461,089 

(2)    Calculation of non-GAAP diluted net income per share for the three months ended September 30, 2023, June 30, 2023 and September 30, 2022 excludes convertible Notes due 2023 interest expense, net of tax of less than $0.1 million in each period from non-GAAP net income. Calculation of non-GAAP diluted net income per share for the nine months ended September 30, 2023 and 2022 excludes convertible Notes due 2023 interest expense, net of tax of approximately $0.1 million in each period from non-GAAP net income.
(3)    Effect of dilutive in-the-money portion of convertible senior notes and warrants are included in the GAAP weighted-average diluted shares in periods where we have GAAP net income. We excluded convertible Notes due 2025, Notes due 2026 and Notes due 2028 totaling 5,328 thousand shares in each of the three months ended September 30, 2023, June 30, 2023 and September 30, 2022, and nine months ended September 30, 2023 from non-GAAP weighted-average diluted shares as we entered into convertible note hedge transactions that reduce potential dilution to our common stock upon any conversion of the Notes due 2025, Notes due 2026 and Notes due 2028. We excluded convertible Notes due 2026 and Notes due 2028 totaling 4,075 thousand shares in the nine months ended September 30, 2022 from non-GAAP weighted-average diluted shares as we entered into convertible note hedge transactions that reduce potential dilution to our common stock upon any conversion of the Notes due 2026 and Notes due 2028.
10
v3.23.3
Cover Page Cover Page
Oct. 26, 2023
Cover [Abstract]  
Entity Central Index Key 0001463101
Document Type 8-K
Document Period End Date Oct. 26, 2023
Entity Registrant Name ENPHASE ENERGY, INC.
Entity Incorporation, State or Country Code DE
Entity File Number 001-35480
Entity Tax Identification Number 20-4645388
Entity Address, Address Line One 47281 Bayside Parkway
Entity Address, City or Town Fremont
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94538
City Area Code 707
Local Phone Number 774-7000
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock, $0.00001 par value per share
Trading Symbol ENPH
Security Exchange Name NASDAQ
Security Exchange Name false
Amendment Flag false

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