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Sizing, Planning, Codes and Regulations

Energy Audits, Roof Planning, NEC, Local Ordinances, TOU Plans and more!
HighTechLab
  • Sticky
Free NEC Access!
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9
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4K
WorldwideDave
WorldwideDave
A
Rectifying 240vac
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9
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126
Hedges
Hedges
G
San Diego Gas and Electric Moves to reduce PV payment for NEM 1 and 2 customers
2
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41
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2K
olivinelife
O
J
EG4 18kPV 12lv can't be used in Cali as of aug 28 2023
2 3
Replies
59
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4K
Markus_EG4
Markus_EG4
Brucey
NEC vertical clearance requirements between wireway and existing outlets
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0
Views
67
Brucey
Brucey
dancingstick
Grounding a separate building - another grounding rod?
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4
Views
134
Madcodger
M
copec
240vac line to neutral in North America?
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0
Views
104
copec
copec
L
7kwp solar / 20kwh battery - What Victron MPPTs?
Replies
1
Views
82
sunshine_eggo
sunshine_eggo
Gotshocked!
EG4 18kpv modding knock out's???
2
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28
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1K
Backtrack8189
B
M
Nem 2 vs 2A
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3
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107
GarySaf
G
C
New and wanting to learn - Does this system make sense?
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2
Views
162
rhino
rhino
R
Small System to power fridge while at work.
Replies
6
Views
143
Brucey
Brucey
neoseven
Need Help. New but humble enough to take your advice. I only know so much but I am really stuck. Need solid advice.
2
Replies
42
Views
969
neoseven
neoseven
G
Code Question: Replacing Inverter in 2013 System and Rapid Shutdown
Replies
4
Views
179
Kuma
Kuma
T
PV production meter (for SRECs) with Sol-Ark hybrid inverter
2
Replies
34
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4K
Gwhite
G
S
Whole home UPS
2
Replies
35
Views
943
glandpuck
G
WorldwideDave
Sun, Swim, and Solar Panels...Keeping Cool in Los Angeles
Replies
16
Views
289
sunshine_eggo
sunshine_eggo
C
Sizing for hybrid inverter
Replies
1
Views
84
DIYrich
D
V
Multiple charge controllers and ground fault protection
Replies
0
Views
89
vtMaps
V
7
Battery backup for electric bifold door
Replies
1
Views
96
seneysolar
seneysolar
P
Utilization of the 6000 XP in California for off- grid.
Replies
7
Views
243
zanydroid
Z
D
Autotransformer vs Paralleled Inverters for 220v
3 4 5
Replies
120
Views
4K
DrZ123
D
dennis_
Help in evaluating if small solar DIY grid tie system is good choice
Replies
2
Views
150
Lawrence_SoCal
L
D
Netherlands: Necessary to connect inverter to fuse box by one cable?
Replies
2
Views
123
Suijkerbuijk
S
E
All-In-One vs Components for Separate Strings
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13
Views
362
evilknot
E
M
Backfeed Breaker Bus Bar location
Replies
7
Views
237
zanydroid
Z
S
Louisiana Contractor Requirement vs Upgradable System
Replies
24
Views
1K
GDZiegler
G
P
Question about main battery disconnect options on RV
Replies
1
Views
124
time2roll
T
P
First EG4 Hybrid Inverter/Solar/Battery Setup Help
Replies
8
Views
397
padom
P
T
Need to make SLD for permit application
Replies
0
Views
121
tonyandjill
T
FlyingT
How to calculate voltage and current in a 2S1P array to size an MPPT controller
Replies
3
Views
170
Mattb4
M
T
Looking for sizing and component wisdom
2
Replies
43
Views
2K
zanydroid
Z
V
help for fuse sizing please
Replies
1
Views
127
robbob2112
robbob2112
O
Help with wire sizing and layout
Replies
5
Views
268
GreenTechPros
GreenTechPros
B
New Offgrid/Mobile Solar Arrangement sanity check please
Replies
3
Views
225
Backtrack8189
B
S
Power Mr sizing issue.
Replies
2
Views
122
DIYrich
D
WorldwideDave
Old house from 1930s
Replies
4
Views
216
WorldwideDave
WorldwideDave
A
Code compliant flat roof mounting options
Replies
4
Views
205
WorldwideDave
WorldwideDave
N
Looking for some guidance. What size system would benefit me! PG&E is expensive!
Replies
2
Views
182
Naleedets
N
S
Will large grid current passthru prematurely age eg418k?
Replies
6
Views
230
zanydroid
Z
J
Sizing a hybrid system for Philippines. I have more info now.
Replies
19
Views
342
ThaiTaffy
ThaiTaffy
E
Please advise me on expanding my system
Replies
7
Views
200
FilterGuy
FilterGuy
M
PV wire sizing
Replies
7
Views
272
Zwy
Zwy
M
Can someone double check my Chicken Coop plan?
Replies
15
Views
408
marj
M
S
OG&E Grid tie Oklahoma requirements (and what needs to be done)
Replies
1
Views
230
Snaketzu
Snaketzu
G
Solar Panel Arrangement and shut off
Replies
9
Views
359
zanydroid
Z
Brett V
Solar Engineering Course Free
Replies
4
Views
1K
sunshine_eggo
sunshine_eggo
Silcozot
limiting power output to grid
Replies
1
Views
169
zanydroid
Z
mikeinnyc
NYC Solar Code is so restrictive and blows badly. Are they kidding me? Just one panel in the front yard and you need permits!
Replies
11
Views
2K
Brucey
Brucey
C
Where do I Start I have a system.
Replies
5
Views
522
bobsolar
B
kolek
Would these be code violations?
Replies
15
Views
803
Mike 134
M
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