- Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Expires: February 28, 2011 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person ^*

McMahon John

2. Date of Event Requiring Statement (MM/DD/YYYY) 8/18/2010

3. Issuer Name and Ticker or Trading Symbol

ADVANCED ENERGY INDUSTRIES INC [AEIS]

(Last) (First) (Middle)

1625 SHARP POPINT DRIVE

4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director _____ 10% Owner
___ X ___ Officer (give title below) _____ Other (specify below)
(see remarks) /

(Street)

FORT COLLINS, CO 80525

(City) (State) (Zip)

5. If Amendment, Date Original Filed (MM/DD/YYYY)

6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	4689 ⁽¹⁾	D

*Table II - Derivative Securities Beneficially Owned ( e.g.* , puts, calls, warrants, options, convertible securities)**
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivate Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)
Employee Stock Option (right to buy)	⁽²⁾	10/28/2019	Common Stock ( the underlying security)	6250	$8.95	D
Employee Stock Option (right to buy)	⁽³⁾	2/19/2020	Common Stock ( the underlying security)	8625	$7.69	D
Employee Stock Option (right to buy)	⁽⁴⁾	4/24/2020	Common Stock ( the underlying security)	11500	$7.95	D
Employee Stock Option (right to buy)	⁽⁵⁾	7/21/2020	Common Stock ( the underlying security)	11500	$11.21	D
Employee Stock Option (right to buy)	⁽⁶⁾	10/27/2020	Common Stock ( the underlying security)	5250	$12.77	D
Employee Stock Option (right to buy)	⁽⁷⁾	2/16/2021	Common Stock ( the underlying security)	5250	$15.65	D
Employee Stock Option (right to buy)	⁽⁸⁾	4/20/2021	Common Stock ( the underlying security)	5250	$16.25	D
Employee Stock Option (right to buy)	⁽⁹⁾	7/20/2021	Common Stock ( the underlying security)	5250	$13.85	D

Explanation of Responses:
( 1)	Represents 4,689 shares of Restricted Stock Units.
( 2)	The option is exercisable in four equal annual installments. The first installment of 1,562 options became exercisable on October 28, 2009 and the next three installments become exercisable on October 28, 2010, October 28, 2011 and October 28, 2012.
( 3)	The remaining portion of the option becomes exercisable in three equal annual installments on February 19, 2011, February 19, 2012 and February 19, 2013.
( 4)	The option is exercisable in four equal annual installments. The first installment of 2,875 options became exercisable on April 24, 2010 and the next three installments become exercisable on April 24, 2011, April 24, 2012 and April 24, 2013.
( 5)	The option is exercisable in four equal annual installments. The first installment of 2,875 options became exercisable on July 21, 2010 and the next three installments become exercisable on July 21, 2011, July 21, 2012 and July 21, 2013.
( 6)	The option is exercisable in four equal annual installments which become exercisable on October 27, 2010, October 27, 2011, October 27, 2012 and October 27, 2013.
( 7)	The option is exercisable in four equal annual installments which become exercisable on February 16, 2011, February 16, 2012, February 16, 2013 and February 16, 2014.
( 8)	The option is exercisable in four equal annual installments which become exercisable on April 20, 2011, April 20, 2012, April 20, 2013 and April 20, 2014.
( 9)	The option is exercisable in four equal annual installments which become exercisable on July 20, 2011, July 20, 2012, July 20, 2013 and July 20, 2014.

Remarks:
Officer Title: principal financial officer, principal accounting officer, vice president and controller.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
McMahon John 1625 SHARP POPINT DRIVE FORT COLLINS, CO 80525			(see remarks)

Signatures
/s/ Thomas O. McGimpsey (Attorney-in-Fact)		8/25/2010
^** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.