safety regulations, 92
shade analysis, 72f, 77
Top-of-pole mounts, 81
Tracking
arrays, 81
modules, 187–188
mounting systems, 81, 157
solar shading devices, 80
Trays, for batteries, 31
Troubleshooting, 239–240, 248–249t
Tubular-plate batteries, 114
TÜV certification, 210
Two-pole circuit breakers, 109
U
Undergrounded conductors, 192
Underground systems, 193, 201
Underwriters Laboratory (UL), 7, 10,
99, 210, 219
Unitized façades, 79
Utility companies
connection to, 5, 9, 55–56, 217–218
inspections by, 9
interconnections, 219–221, 219f
V
Valve-regulated batteries, 114
Vented cells, 31
Ventilation
for batteries, 31
and hydrogen gas, 111
rain-screen façades, 79
for smoke, 35–37
Vinegar, 32
Vmp (maximum power voltage), 158
Voc (open-circuit voltage), 158
Voltage
code, 39–40, 100
defined, 115
disconnect, 169–170
drops, 162–163
gassing, 116
losses, 130
low voltage disconnect, 169–170
maximum permissible, 100
maximum power, 158
open-circuit, 158
Voltmeters, 116
W
Warning labels, 34, 134–136, 134–135f
Warranties
arrays, 10
inverters, 49
systems, 220–221
Water, distilled, 121
Watt-hours, determining, 128–130
Weather considerations, 68–69
Web-based data transmission and evaluation, 250
Welding cable, 168
Wire loss, 4
Wiring
batteries, 166–168
battery banks, 119, 119f
checklist for, 60
installation of, 54
module interconnections, 182–187,
182–187t, 182f
permit information, 213
safety requirements, 40, 108
sizing worksheet, 132–133f, 132
strings, 18, 232
transition, 188–189
Working space
batteries, 31
electrical systems, 29–30, 97–98
X
XML (extensible markup language), 250
Y
Yield, defined, 52
Index 275
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