EXHIBIT 15

                   AWARENESS LETTER OF INDEPENDENT ACCOUNTANTS



MidAmerican Energy Holdings Company
Des Moines, Iowa

We have made a review, in accordance with standards  established by the American
Institute of Certified Public  Accountants,  of the unaudited  interim financial
information of MidAmerican  Energy Holdings  Company for the three and six month
periods  ended June 30, 1999 and 1998 as  indicated in our report dated July 26,
1999;  because we did not  perform  an audit,  we  expressed  no opinion on that
information.

We are aware  that our  report  referred  to above,  which is  included  in your
Quarterly  Report  on  Form  10-Q  for the  quarter  ended  June  30,  1999,  is
incorporated by reference in Registration Statements No. 33-26256, No. 33-38431,
No. 33-41152,  No. 33-44934,  No. 33-52147,  No. 33-64897, No. 333-30395 and No.
333-74691 on Form S-8 and Registration  Statements No. 333-30537, No. 333-45615
and No. 333-62697 on Form S-3.

We also are aware that the aforementioned report,  pursuant to Rule 436(c) under
the Securities Act of 1933, is not considered a part of a Registration Statement
prepared or certified by an accountant  or a report  prepared or certified by an
accountant within the meaning of Sections 7 and 11 of that Act.



DELOITTE & TOUCHE LLP
Des Moines, Iowa
August 11, 1999