EXHIBIT (10)(i)70

                           WPS POWER DEVELOPMENT, INC.
                             1088 SPRINGHURST DRIVE
                           GREEN BAY, WISCONSIN 54304


December 21, 2001



Central Hudson Enterprises Corporation
110 Main Street
Poughkeepsie, NY  12601

RE:  TRANSMISSION CONGESTION CONTRACTS

Ladies & Gentlemen:

We refer you to the two Transmission Congestion Contracts held by Central Hudson
Enterprises   Corporation  ("CHEC")  described  in  the  Confidential   Offering
Memorandum regarding CH Resources, Inc. dated September 2001 (the "TCCs").

This letter reflects our understanding and agreement  regarding the transfer and
assignment of the TCCs. CHEC shall transfer and assign all of its rights,  title
and  interest  in and to the TCCs to WPS  Energy  Services,  Inc.  or one of its
corporate  affiliates  ("ESI"),  and ESI shall assume all obligations  under the
TCCs, for a cash purchase price of $3,982,440  payable by ESI to CHEC at closing
subject to adjustment as provided below. Such transfer shall take place pursuant
to an Assignment and Assumption  Agreement  containing  reasonable and customary
terms and  conditions  to be agreed  between  the  parties.  The closing of such
transfer  shall take place no later than the  closing  under the Stock  Purchase
Agreement  dated as of  December  21, 2001 (the "SPA")  between  Central  Hudson
Energy Services, Inc. and us.

The purchase  price shall be adjusted as follows:  (i) if the closing is delayed
beyond May 15, 2002,  the price shall be reduced by $4,700 for each day from and
including May 16, 2002 through and including the date of the closing  subject to
the  limitation  set forth in Section  9.14 of the SPA;  and (ii) if the closing
occurs prior to April 16, 2002,  the price shall be increased by $4,700 for each
day after the closing  date to but not  including  April 16,  2002.  In no event
shall such adjustment exceed an aggregate amount of $625,000.

If this  letter  meets  with  your  understanding  of our  agreement,  please so
indicate by signing in the space  provided  below,  whereupon this will become a
binding agreement between us.

Very truly yours,

WPS POWER DEVELOPMENT, INC.


By:        /s/ CHARLES A. SCHROCK
    --------------------------------------
    Name:  Charles A. Schrock
    Title:    President

ACCEPTED AND AGREED TO:

CENTRAL HUDSON ENTERPRISES CORPORATION


By:        /s/ ALLEN R. PAGE
      --------------------------------------
      Name:  Allen R. Page
      Title:  President