I actually saw one of those once, they did a presentation. Seemed like a good idea, but they never had a good answer on charge controllers and other equipment.  The E meter can work at higher voltages.  I used them with 144 vdc battery banks before.

Ray Walters


On 10/20/17 3:48 PM, Sindelar Solar wrote:
Wrenches,
I have an upcoming remote residential off grid upgrade job that uses one of the rare Michigan Energy Works inverter/charger/controller packages, this one from 1997, which the homeowner wants to continue using. The package uses a 120 volt nominal array (10 x BP90 in series) and a 144V nominal battery bank. I'm adding array (6 x 60-cell generic), replacing batteries (FLA with VRLA), and updating disconnects and overcurrent protection. Can anyone suggest a user-friendly system monitor that will work with this system voltage, something akin to a TriMetric 2020 or 2030? I can't think of one that will work with a system voltage this high. Mostly I'd like the percentage function for a nontechnical homeowner.

Thank you, Allan

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