• Revenue of $153 million
• GAAP earnings of $0.23 per diluted share
• Non-GAAP earnings of $0.50 per diluted share
• Ended quarter with $128 million in cash

FORT COLLINS, Colo., Feb. 2, 2015—Advanced Energy Industries, Inc. (Nasdaq:AEIS) today announced financial results for the fourth quarter ended December 31, 2014. The company reported fourth quarter sales of $152.7 million compared with $143.1 million in the third quarter of 2014 and $152.6 million in the fourth quarter of 2013. Net income was $9.3 million or $0.23 per diluted share. On a non-GAAP basis, adjusted net income was $20.6 million or $0.50 per diluted share. A reconciliation of non-GAAP net income and earnings per share is provided in the tables below. The company ended the quarter with $128.4 million in cash and marketable securities, a sequential increase of $22.6 million.

"We ended 2014 with a strong quarter," said Yuval Wasserman, President and CEO of Advanced Energy. "Our investment in new semiconductor products targeting key technology inflection points is enabling accelerated growth in existing and new applications, and drove record revenues for the quarter. Having made three strategic acquisitions in the last 12 months, we have entered several new and adjacent industrial markets, expanding our total available market and increasing our diversification. We are in the process of evaluating strategic alternatives for our solar inverter business given some of the near-term challenges facing the industry. With a strong pipeline of opportunities and choices for our business, we believe that we are well positioned for 2015."

Precision Power Products

Precision Power Products sales were $105.9 million in the fourth quarter of 2014, a 16.1% increase from $91.2 million in the third quarter of 2014 and a 20.8% increase from $87.6 million in the fourth quarter of 2013. This was driven by a record quarter in semiconductor sales and a recovery in our industrial applications.

Inverters

Inverter sales were $46.8 million in the fourth quarter of 2014, down 9.8% from $52.0 million in the third quarter of 2014, and down 27.9% from $64.9 million in the fourth quarter of 2013. The solar inverter business was impacted by a number of macroeconomic factors including economic weakness in Europe, pricing pressure, changes in currency exchange rate and increased competition.

Net Income

Net income for the fourth quarter of 2014 was $9.3 million or $0.23 per diluted share, compared with net income of $12.3 million or $0.30 per diluted share in the third quarter of 2014, and $34.4 million or $0.83 per diluted share in the fourth quarter last year. On a non-GAAP basis adjusted net income this quarter increased to $20.6 million or $0.50 per diluted share from $16.9 million or $0.42 per diluted share in the third quarter of 2014, and decreased from $27.8 million or $0.67 per diluted share in the same period last year.

First Quarter 2015 Guidance

Based on the company's current view, guidance for the first quarter of 2015 is within the following ranges:

• Sales of $137 million to $147 million
• GAAP earnings per share of $0.32 to $0.40
• Non-GAAP earnings per share of $0.38 to $0.46

Fourth Quarter 2014 Conference Call

Management will host a conference call tomorrow morning, Tuesday, February 3, 2015, at 8:30 a.m. Eastern Time to discuss Advanced Energy's financial results. Domestic callers may access this conference call by dialing 855-232-8958. International callers may access the call by dialing 315-625-6980. Participants will need to provide conference pass code 63429946. For a replay of this teleconference, please call 855-859-2056 or 404-537-3406 and enter pass code 63429946. The replay will be available for one week following the conference call. A webcast will also be available on the Investor Relations web page at http://ir.advanced-energy.com.

About Advanced Energy

Advanced Energy is a global leader in innovative power and control technologies for high-growth, precision power conversion solutions. Advanced Energy is headquartered in Fort Collins, Colorado, with dedicated support and service locations around the world. For more information, go to www.advanced-energy.com.

This release includes GAAP and non-GAAP income and per-share earnings data. Please note that beginning in 2013, Advanced Energy redefined its non-GAAP measures to exclude restructuring charges, acquisition-related costs, stock based compensation and amortization of intangibles and tax release items. These non-GAAP measures are not in accordance with, or an alternative for, similar measures calculated under generally accepted accounting principles and may be different from non-GAAP measures used by other companies. In addition, these non-GAAP measures are not based on any comprehensive set of accounting rules or principles. Advanced Energy believes that these non-GAAP measures provide useful information to management and investors regarding financial and business trends relating to its financial condition and results of operations. Additionally, the company believes that these non-GAAP measures, in combination with its financial results calculated in accordance with GAAP, provide investors with additional perspective. While some of the excluded items may be incurred and reflected in the company's GAAP financial results in the foreseeable future, the company believes that the items excluded from certain non-GAAP measures do not accurately reflect the underlying performance of its continuing operations for the period in which they are incurred. The use of non-GAAP measures has limitations in that such measures do not reflect all of the amounts associated with the company's results of operations as determined in accordance with GAAP, and these measures should only be used to evaluate the company's results of operations in conjunction with the corresponding GAAP measures.

Please refer to the Form 8-K regarding this release furnished today to the Securities and Exchange Commission.

Forward-Looking Statements

The company's guidance with respect to anticipated financial results for the first quarter ending March 31, 2015, and other statements that are not historical information are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. Forward-looking statements are subject to known and unknown risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements. Such risks and uncertainties include, but are not limited to: (a) the effects of global macroeconomic conditions upon demand for our products; (b) the volatility and cyclicality of the industries the company serves, particularly the semiconductor industry; (c) the volatility, seasonality and delays of renewable energy projects and inverter sales; (d) our ability to integrate successfully the operations of companies we acquire, including the retention of key employees of such companies, realization of the benefits of such companies' products, the total available market and expected sales of such products, and product cost expectations surrounding the fabless manufacturing models for REFUsol and the power control modules product line we acquired from AEG Power Solutions GmbH; (e) opportunities that might present themselves, or actions we might take, as a result of our exploration of strategic alternatives for our solar inverter business, (f) with regard to the renewable energy market, tariffs on Chinese & Taiwanese solar panels, the continuation of feed-in-tariffs and other incentives in Europe and elsewhere for inverters, including the RPS (renewable portfolio standards), the timing and availability of grant programs in North America and Europe and the reduction of the investment tax credit for solar facilities in the United States after 2016; (g) the impact of price changes resulting from a variety of factors including increased competition in the solar inverter equipment market; (h) the timing of orders received from customers; (i) the company's ability to realize benefits from cost improvement efforts including avoided costs, restructuring plans and inorganic growth; (j) the company's ability to obtain materials and manufacture products; and (k) unanticipated changes to management's estimates, reserves or allowances. These and other risks are described in Advanced Energy's Form 10-K, Forms 10-Q and other reports and statements filed with the Securities and Exchange Commission (the "SEC"). These reports and statements are available on the SEC's website at www.sec.gov. Copies may also be obtained from Advanced Energy's investor relations page at http://ir.advanced-energy.com or by contacting Advanced Energy's investor relations at 970-407-6555. Forward-looking statements are made and based on information available to the company on the date of this press release. Aspirational goals and targets discussed on the conference call or in the presentation materials should not be interpreted in any respect as guidance. The company assumes no obligation to update the information in this press release.