Page 211 - Solar Power in Building Design The Engineer's Complete Design Resource

LEED 181

Enhanced refrigerant management, credit no. 4 This measure involves instal-
lation of HVAC, refrigeration, and fire suppression equipment that do not use hydrochlo-
rofluorocarbon (HCFC) agents.
The point weight credit awarded for this category is 1.

Measurement and verification, credit no. 5 This requirement is intended to
optimize building energy consumption and provide a measure of accountability. The
design measures implemented include the following:

■ Lighting system control, which may consist of occupancy sensors, photocells for
control of daylight harvesting, and a wide variety of computerized systems that
minimize the energy waste related to building illumination. A typical discussion of
lighting control is covered under California Title 24 energy conservation measures,
with which all building lighting designs must comply within the state.
■ Compliance of constant and variable loads, which must comply with motor design
efficiency regulations.
■ Motor size regulation that enforces the use of variable-speed drives (VFD).
■ Chiller efficiency regulation measures that meet variable-load situations.
■ Cooling load regulations.
■ Air and water economizer and heat recovery and recycling.
■ Air circulation, volume distribution, and static pressure in HVAC applications.
■ Boiler efficiency.
■ Building energy efficiency management by means of centralized management and
control equipment installation.
■ Indoor and outdoor water consumption management.

Point weight credit awarded for each of the four categories is 1.

Green power, credit no. 6 This measure is intended to encourage the use and
purchase of grid-connected renewable cogenerated energy derived from sustainable
energy such as solar, wind, geothermal, and other technologies described throughout
this book. A purchase-and-use agreement of this so-called green power is usually lim-
ited to a minimum of a 2-year contract. The cost of green energy use is considerably
higher than that of regular energy. Purchasers of green energy, who participate in the
program, are awarded a Green-e products certification.

MATERIAL AND RESOURCES
Storage and collection of recyclables, prerequisite no. 1 This prerequisite
is a measure to promote construction material sorting and segregation for recycling and
landfill deposition. Simply put, construction or demolition materials such as glass, iron,
concrete, paper, aluminum, plastics, cardboard, and organic waste must be separated
and stored in a dedicated location within the project for further recycling.

Building reuse, credit no. 1 The intent of this measure is to encourage the max-
imum use of structural components of an existing building that will serve to preserve