Hospitals, Communications, and Other Services. Activities which cannot
withstand an outage of more than four hours must be protected. Where normal electric
connections between hospitals, for instance, and the normal source of power may be
broken by a catastrophe, provide an emergency power plant of sufficient capacity to
handle the essential load, arranged to operate automatically with the failure or
Expansion, Rehabilitation, and Replacement of Existing Plants
Plant Additions. Expansion of an existing power plant should be considered
when additional electric generating capacity, including reserve capacity, is needed to
provide for future loads. An economic study must show that modifications and additions
to an existing plant, to serve additional loads, will be more economical than the
construction of another power plant.
be included for any significant plant modifications.
Rehabilitation Versus Replacement. If an existing plant has deteriorated to
the point where numerous outages occur, does not perform in compliance with air
pollution regulations, or is becoming a safety hazard, its rehabilitation or replacement
should be considered. The choice between rehabilitation of the existing plant or
replacement with a new modern plant shall be determined by a life cycle economic
analysis. New capacity as needed to handle additional projected load shall be included
in the considerations.
Necessary equipment and systems for air pollution regulation compliance and
elimination of other operating, safety, or maintenance deficiency must be included in
either the rehabilitated or replacement plant.
and Design Guide, NAVFACINST 10343.1A, On-Shore Use of Navy Special, Navy Distillate and
Marine Diesel Fuel Oils, NAVFACINST 10340.4C, Coal Requirements and requisitions,
OPNAVINST 4100.6, Energy Financing and Source selection Criteria for Shore Facilities,
and Navy policy on selection of fuels. Select fuels that are within the national
guidelines and that produce the required performance at lowest life cycle costs,
consistent with availability and pollution control. The fuel policy has been to use a
solid domestically produced fuel as a primary fuel for power plants of medium size and
above except where use of a solid fuel is not feasible because of geographic
considerations. Existing plants burning fuel oil or gas may continue to burn fuel oil
or gas, but new or replacement boilers in plants with design input over the threshold
minimum established by government policy are required to burn solid fuel. Capability of
burning another fuel shall be provided to be used when the primary fuel is not available
and where it is critical to keep the power plant in operation on an emergency basis.
Interruptible gas service will require a secondary oil fuel backup.