May 8, 2002

Energy-Environment-Economics_LLC
18818 North 34th Way
Phoenix, Arizona 85050

Attn: Mr. Michael Ledbetter, P.E.
President - Energy-Environment-Economics_LLC

Re: Letter of Reference

Michael:

I’m pleased to write this letter recommending you and the Group you have assembled at Energy-Environment-Economics_LLC It is not very often the effort is made to put an excellent Team of Problems Solvers matched with the “Know-How” of Energy and Financial Analysis.

I have had professional relationships with the key individuals over the past dozen years and can honestly say I have been impressed with their integrity, honesty and ability.

There is a serious need to review, analyze and optimize many of our older Facilities, and some of the not-so old but problem buildings as well.

The Energy-Environment-Economics_LLC concept of providing a service where compensation for their efforts is paid for out of energy savings is not unusual. But having the combined resources to identify problems, develop alternative solutions, estimate the construction costs and energy savings dollars, arrange and coordinate the work required to fix the problems, and on occasions arrange the financial side as well, is unusual and admirable.

I appreciate the work your Group has done and I am glad that a resource such as Energy-Environment-Economics_LLC is available to support the needs of the Building Industry.

Best wishes for your continued success,

David S. Pearson, P.E., C.I.P.E.
President
PEARSON ENGINEERING ASSOCIATES, INC.