Do your windows frost up on cold winter days? Do cold drafts send shivers down your spine? Is your paint cracking and chipping? These are sure signs that your old windows need to be replaced. Stop throwing money out the window (and door) by upgrading to energy-efficient windows and doors.

Note: New construction projects do not qualify.

Download the 2009 Iowa Business Cash Rebates booklet [PDF]

Eligible equipment and reward amounts:

Windows

Improve the efficiency of your business by installing high performance windows/sashes that can significantly reduce energy bills without sacrificing style, versatility or comfort.

ENERGY STAR® qualified windows can help reduce your energy bills up to 15 percent. Over the lifetime of a typical window, the return on investment can be substantial; and as an added benefit, saving energy prevents pollution. ENERGY STAR qualified windows are, on average, twice as efficient as the average window manufactured 10 years ago!

Learn more about ENERGY STAR-rated windows/sashes.

Equipment	Rebate
ENERGY STAR qualified windows (≤.35 U-factor, minimum size of 8 sq. ft. each)	$25 each

2009 Iowa Replacement Windows and Doors claim form [PDF]

Doors

Doors are one of the biggest openings in your building - which means there is a great opportunity for air leakage and heat transfer. If your doors are old, not properly installed, and/or not properly sealed, they may be unnecessarily inflating your utility bill. With Alliant Energy-IPL's door rebate, there's no better time to install energy-efficient doors and reduce your energy usage. Once you have purchased your new door(s), make sure to install new weather stripping around the entire door frame and a door sweep on the bottom.

Equipment	Rebate
ENERGY STAR rated doors (solid doors R-5 to R-10, minimum size of 8 sq. ft. each)	$25 each
ENERGY STAR rated doors (solid doors ≥ R-11, minimum size of 8 sq. ft. each)	$50 each
ENERGY STAR rated glass entry doors (at least 50% glass and ≤ 0.35 U-factor, minimum size of 8 sq. ft. each)	$25 each

2009 Iowa Replacement Windows and Doors claim form [PDF]

This program is effective January 1, 2009, through December 31, 2009, and is subject to periodic review and modification by Alliant Energy-IPL.

Alliant Energy-IPL does not guarantee that the installation of high-efficiency equipment will result in reduced usage or demand or in cost savings. Alliant Energy-IPL makes no warranties, expressed or implied, with respect to any equipment purchased and/or installed, including, but not limited to, any warranty of merchantability or fitness for a particular purpose. In no event shall Alliant Energy-IPL be liable for any incidental or consequential damage.

Products and services from Alliant Energy-IPL detailed here are offered to customers of Alliant Energy-Interstate Power and Light Co.