Design Examples: Tesla Powerwall

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Typical Installation

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Simple Installation

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CONFIGURATION Single largest load ≤  60A Tesla guidance without Lumin ≤  30AInstallation complies with NEC 705.12 120% ruleTesla Backup Gateway can intercept meter and main

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Heavy Load

CONFIGURATION

Single largest load ≤ 60A Tesla guidance without Lumin ≤ 30AInstallation complies with NEC 705.12 120% ruleTesla Backup Gateway can intercept meter and main

SOLUTIONLumin sheds all loads > 30A

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Exceeds 120% Rule - A

SOLUTIONDownsize main breaker and shed all loads > than 30A

CONFIGURATION

Single largest load ≤  60A Tesla guidance without Lumin ≤ 30AInstallation does not comply with NEC 705.12 120% ruleTesla Backup Gateway can intercept meter and main

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Exceeds 120% Rule - B 

CONFIGURATION

Single largest load ≤  60A Tesla guidance without Lumin ≤ 30AInstallation does not comply with NEC 705.12 120% ruleTesla Backup Gateway can intercept meter and main

SOLUTION

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Create Generation Panel, Connect PW via Supply-Side,and shed heavy load

(Also shown on page 2 as "Typical Installation") 

All in One Meter / Load Center

CONFIGURATION

Single largest load ≤ 60A Tesla guidance without Lumin ≤ 30AInstallation does not comply with NEC 705.12 120% ruleTesla Backup Gateway can't intercept meter and main

SOLUTIONAdd subpanel with dynamic load control

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Split 400A Service

CONFIGURATION

Single largest load ≤ 60A Tesla guidance without Lumin ≤ 30AInstallation does not comply with NEC 705.12 120% ruleTesla Backup Gateway can't intercept meter and both mains

SOLUTIONAdd subpanel with dynamic load control

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