SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549

In the Matter of                    CERTIFICATE 
Cinergy Corp. et al.                OF
File No.  70-8933                   NOTIFICATION

(Public Utility Holding Company Act of 1935)

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549

     With reference to the transactions (a) proposed in the Application-
Declaration on Form U-1, as amended, in the above docket filed by Cinergy
Corp., a Delaware corporation ("Cinergy"), a registered holding company under
the Public Utility Holding Company Act of 1935 (the "Act"), Cinergy
Investments, Inc., a Delaware corporation and direct, wholly-owned nonutility
subsidiary of Cinergy ("Cinergy Investments"), and Cinergy Services, Inc., a
Delaware corporation and direct, wholly-owned service company subsidiary of
Cinergy ("Cinergy Services") and (b) authorized by the Commission in its
order dated February 7, 1997, Rel. No. 35-26662, Cinergy Services hereby
provides the following information:

1.   The following summary, covering the quarterly period ended December 31,
1997 ("Fourth Quarter 1997"), updates the business activities of Cinergy
Solutions, Inc. ("Cinergy Solutions"), a Delaware corporation and direct,
wholly-owned nonutility subsidiary of Cinergy Investments, as previously
reported in this docket:

     a.   Energy Management Services.   Cinergy Solutions continued marketing
on a pilot basis its "On-Site Energy Manager" program, under which large
industrial customers may hire a qualified Cinergy Solutions "energy advisor"
to be posted on site at the customer's facilities to identify, develop and
manage a comprehensive turn-key program to realize energy savings and cost
reductions.  

     b.   Asset Management Services.    Cinergy Solutions continued to market
two types of services, large and small asset management, under the names
"Customized Cinergy Solutions" and "Energy Project Services," respectively. 
"Customized Cinergy Solutions" provide large commercial and industrial
customers assistance in managing their power needs.  Specific services
include engineering services, turnkey energy project management services,
asset maintenance, operation, fuel procurement and financing/ leasing
assistance.  Target projects focus in the areas of substation, power
reliability, boilers, propane storage systems, and coal and fly ash handling. 
"Energy Project Services" provide commercial and industrial customers
assistance in managing their energy needs within their facilities.  Specific
services include auditing services, turnkey energy project management
services, financing/ leasing and facility energy management assistance. 
Projects focus in the areas of power factor correction, lighting, HVAC, and
energy management systems.

     c.   Consulting Services.  Nothing to report, except to the extent
included within the other activities described herein.

     d.   QF Project Development and Ownership.  See Cinergy's Quarterly
Reports on Form U-9C-3 for information concerning Trigen-Cinergy Solutions
LLC. 

     e.   Consumer Services.  In partnership with an outside provider,
Cinergy Solutions continued offering to residential customers on a pilot
basis a service contract program (called "Appliance Protection Plus")
covering parts and labor for mechanical breakdowns of existing appliances and
HVAC systems.  

     f.   Customer Financing.  In tandem with a bank, Cinergy Solutions
continued marketing "Quick Credit," a financial services program providing
residential, commercial, and institutional customers with financing for
retrofit or replacement of their HVAC systems and other types of energy-related 
projects.

     g.   Third-Party Alliances.  See Cinergy's Quarterly Reports on Form 
U-9C-3 for information with respect to Trigen-Cinergy Solutions and Cadence
Network LLC. 

2.   During the Fourth Quarter 1997, Cinergy Services provided accounting,
executive, legal, information systems, marketing and customer relations,
materials management, and engineering and construction services to Cinergy
Solutions for a total cost of approximately $934,000.

3.   During the Fourth Quarter 1997, neither Cinergy nor Cinergy Investments
guaranteed any financial obligations of Cinergy Solutions.  During the Fourth
Quarter 1997, Cinergy Investments made net open-account advances to Cinergy
Solutions totaling approximately $1,000,000 at annual interest rates ranging
from 5.99% to 6.20%.

4.   During the Fourth Quarter 1997, Cinergy Solutions did not enter into any
long-term contract by which Cinergy Solutions performs long-term operations,
load control or network control of any electric generation, transmission or
distribution facility. 

5.   Financial statements for Cinergy Solutions with respect to the Fourth
Quarter 1997 will be filed as exhibits to Cinergy's Annual Report on Form U5S
for the year ended December 31, 1997.

                                              S I G N A T U R E

     Pursuant to the requirements of the Act, the undersigned company has
duly caused this document to be signed on its behalf by the undersigned
thereunto duly authorized.

Date:       February 13, 1998

                                       CINERGY SERVICES, INC.


                                       By:   /s/William L. Sheafer
                                            Vice President and Treasurer