<PAGE>
PRICING SUPPLEMENT NO. 40 DATED Filed Pursuant to
JANUARY 22, 1998, TO PROSPECTUS DATED Rule 424(b)(5)
SEPTEMBER 17, 1997, AS SUPPLEMENTED BY File No. 333-34087
PROSPECTUS SUPPLEMENTS DATED
OCTOBER 1, 1997
CMS ENERGY CORPORATION
General Term Notes (servicemark of J.W. Korth & Company), Series D
Due 9 Months to 25 Years from date of issue
Pursuant to the terms of a Distribution Agreement as supplemented
by certain letter agreements, the Company has appointed the Agents
referred to below as agents through which General Term Notes (servicemark
of J.W. Korth & Company) (the "Notes") may be offered by the Company on a
continuous basis. Additional Agents may be designated under the
Distribution Agreement from time to time. Except as set forth herein,
the Notes offered hereby have such terms as are described in the
accompanying Prospectus dated September 17, 1997, as supplemented by the
Prospectus Supplements dated October 1, 1997.
Aggregate Principal Amount: $ 874,000.00
Original Issue Date (Settlement Date) January 27, 1998
Stated Maturity Date: January 15, 2005
Issue Price to Public: 100.00% of Principal Amount
Interest Rate: 6.750% Per Annum
Interest Payment Dates: February 15 and monthly
thereafter
Commencing February 15, 1998
Survivor's Option: [ X ] Yes[ ] No
Optional Redemption: [ X ] Yes[ ] No
Initial Redemption Date: January 15, 2000
Redemption Price: Initially 101.00% of Principal
Amount and 100% after the first
anniversary of the Initial
Redemption Date.
Agent Principal Amount of Notes
Solicited by Each Agent
Prudential Securities Incorporated $ 43,000.00
First of Michigan Corporation $ 110,000.00
Roney & Co. $ 47,000.00
J.W. Korth & Company $ 674,000.00
Total $ 874,000.00
Per Note
Sold by Agents
To Public Total
Issue Price: $ 1,000.00 $ 874,000.00
Agent's Discount or Commission: $ 7.00 $ 6,118.00
Maximum Dealer's Discount or
Selling Concession: $ 18.00 $ 15,732.00
Proceeds to the Company: $ 975.00 $ 852,150.00
CUSIP Number: 12589QVU7
<PAGE>
