Page 176 - Solar Power in Building Design The Engineer's Complete Design Resource

146 ENERGY CONSERVATION

fluctuates beyond ideal living conditions. A traditional air-conditioning or heating sys-
tem can be a tremendous load on a solar or wind energy system, as well as a drain on
the pocketbook for those connected to the utility grid. However, by following some of
the insulation and weatherization tips previously mentioned, it is possible to
significantly reduce heating losses and reduce the size of the heating system.
The following heating and cooling tips will help further reduce heating and cool-
ing losses and help your system work as efficiently as possible. These tips are
designed to increase the efficiency of the heating and/or cooling system without
drastic remodeling. Table 6.1 shows the energy distribution in residential and com-
mercial projects.

TABLE 6.1 ENERGY DISTRIBUTION IN RESIDENTIAL AND COMMERCIAL
PROJECTS

% OF POWER USED
APARTMENT BUILDINGS

Environmental control 70
Lighting, receptacles 15
Water heating 3
Laundry, elevator, miscellaneous 12
SINGLE RESIDENTIAL
Environmental control 60
Lighting, receptacles 15
Water heating 3
Laundry, pool 22

HOTEL AND MOTELS
Space heating 60
Air conditioning 10
Lighting 11
Refrigeration 4
Laundry, kitchen, restaurant, pool 15
Water heating, miscellaneous 5

RETAIL STORES
Environmental control HVAC 30
Lighting 60
Elevator, security, parking 10