Page 92 - Alternative Energy Systems in Building Design

68 SOLAR POWER SYSTEM PHYSICS AND TECHNOLOGIES

with this system configuration will have an annual power production capacity of about
2
120–128 kWh/m .
Custom solar solution MegaSlate roof elements are manufactured at an optimal
size specifically designed for use on a wide variety of roof surfaces. PV units are manu-
factured to be optimally appealing when homogeneously integrated as a component of
the building architecture. In most instances, MegaSlate PV units are integrated in the
construction of chimneys and skylights and for architectural effect whenever neces-
sary. Dummy MegaSlate elements can be deployed to enhance aesthetic requirements.
Figure 3.32 shows a solar window shading application.

PV support structure The system-specific support structure consists of channel
profiles that are mounted onto the roof substructure. These channels are fitted with spe-
cially designed rubber elements mounted on the sides, which serve to support MegaSlate
elements and also to allow for rainwater drainage. Each MegaSlate element is secured
within brackets specially coated to withstand long-term environmental exposure.

Field cabling The MegaSlate PV modules deploy male-female plug-in connectors
that interconnect strings of arrays in a daisy-chain fashion, which eventually terminate
in a combiner box and, finally, connect to an inverter.

Figure 3.32 Application of a solar PV system in window shading. Photo courtesy of
AT&T Ballpark.