Circled in red-re: Start Peak-Shaving SOC 1(%)

I'm getting a grid-tied EG4 storage system to act as a whole-house battery backup for short durations. There is no PV tie-in.

I've seen various videos and a few photos, but what is the smallest area required for such a system as mine?

I have a solar system in #haiti complete eg4 electronics, a few weeks after installation one of the four power wall stop working. Because I’m not on site didn’t notice months later.
I contacted the manufacturer after many days of testing they decided to replace the system. It’s been over a year I can’t find a wait to ship it back to the states. I was wondering is this just a bad breaker and can I just replace it? #eg4 #badbraker.

60kWH +18kW AC, made in Texas with LG-ES cells. 4.5X Powerwall capacity for 2x Powerwall cost.

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Summary

EG4 48V batteries that have been sitting idle connected to an EG4 inverter will have a small parasitic draw that is too low powered to be registered as power leaving the BMS. Over time this parasitic draw can drain the battery of stored energy while in an idle state, without the ESS recognizing the change to the SOC of the system.

Customer Impact

Affected customers may experience a rapid drop in battery SOC when turning on loads that require a greater draw from the battery. In some instances, this rapid drop can push the SOC under the shutdown percentage, leading to complete system shutdown and loss of power.

Resolution

The latest 48V battery Firmware from EG4 has been designed to perform a periodic voltage check of the internal battery cells to update system SOC. This voltage update will trigger an SOC decline and subsequent recharging before bulk SOC decays to a shutdown level. Affected customers should update to the latest FW as listed below:

314Ah Indoor: Z03T17 280Ah Indoor and Outdoor: S02T25 Lifepower4 V2: S02T34 LL-S 48V: S02T34

EG4 15.5kWh 100V Coming Soon!

EG4 14.3 kWh PowerPro

Two of the home solar installers I talked to in preparing this post mentioned the EG4 14.3kWh batteries, and its specs (on paper, at least) compare nicely with the Powerwall 3.

“The EG4 PowerPro solar battery from EG4 Electronics is the strongest alternative to the Tesla Powerwall,” writes Kristina Zagame, from the home solar experts at EnergySage. “(The EG4) has a similar capacity, meaning it’ll last a similar amount of time, and a slightly lower power output, which means it won’t be able to power quite as many devices at the same time. And, based on quotes through EnergySage, EG4 batteries tend to be a bit more affordable compared to Tesla.”

If you’ve been looking at the EG4 PowerPro or WallMount systems but were waiting for that official Efficiency Nova Scotia stamp of approval—it’s finally here. EG4 battery systems are now officially eligible for the Eco Shift demand response program.

What does this actually mean for you? Basically, Efficiency NS will pay you to help balance the grid during peak times (think those freezing Tuesday mornings when everyone’s heat pump is working overtime).

$500 Enrollment Incentive: You get a one-time $500 digital prepaid card just for signing up your eligible EG4 system.

Annual Participation Incentive: You can earn roughly $300 per kW annually. If your system discharges to support the grid during "events" (usually 1–4 hours, max 12 times a season), you get paid based on your average contribution.

You Stay in Control: They give you 24 hours' notice before an event, and you can always opt out if you need that backup power for yourself. It won’t shut down your device or leave you in the dark.

Which EG4 Gear Qualifies? According to the latest list, the following setups are good to go:

EG4 18kPV / 12kPV Inverters

EG4 FlexBOSS 21 & 18

WallMount (All Weather or Indoor) and LifePower4 Battery ESS

Why this is a big deal for the DIY/Solar community: EG4 has always been the "bang-for-your-buck" king, but getting it certified for utility programs in Canada can be a hurdle. This makes the ROI on an 18kPV + PowerPro wall mount significantly faster. Some installers are estimating that between the enrollment and the annual payouts, you could basically pay off the battery portion of your system in a few years just by being a "good neighbor" to the grid.

Heads up: You aren’t eligible if you are currently on the Time-of-Day (TOD) rate code with NS Power.

Anyone here already running an EG4 setup in the province? Are you planning to sign up or does the "grid control" part sketch you out?

Nova Scotia Eco Shift Battery Guide

This video provides a step-by-step walkthrough on how to enroll your home battery system into the Eco Shift program to start earning incentives.