(Cross post, originally posted in DIY powerwalls but didn't get any responses there)
As shown in my profile, I have a system with 32 panels at 300W/20V feeding 4 Pika PV Link/S2501 MPPTs into a Pika X7601 Islanding Inverter.
Pika was headquartered near Portland, Maine, near where I live and I got the chance to go down and see their facility and talk to them before I went with their system. The entire system has several modes, works great and has been trouble free.
The system is currently grid-tie but I'd like to add batteries, both as outage backup and SHTF. But Pika/Generac has a proprietary system they call the REbus, which muxes data on the power connections. The Panasonic powerwalls they sell are super expensive: $2400 for the cabinet and $1700/each, min 3, total $7500 for a 9kW powerwall. The Pika system seemed like a good idea at the time but I'm locked into their system.
Is anybody out there familiar with the Pika systems? Are there any DIY or cheaper alternatives? I don't mind complex DIY projects.
As shown in my profile, I have a system with 32 panels at 300W/20V feeding 4 Pika PV Link/S2501 MPPTs into a Pika X7601 Islanding Inverter.
Pika was headquartered near Portland, Maine, near where I live and I got the chance to go down and see their facility and talk to them before I went with their system. The entire system has several modes, works great and has been trouble free.
The system is currently grid-tie but I'd like to add batteries, both as outage backup and SHTF. But Pika/Generac has a proprietary system they call the REbus, which muxes data on the power connections. The Panasonic powerwalls they sell are super expensive: $2400 for the cabinet and $1700/each, min 3, total $7500 for a 9kW powerwall. The Pika system seemed like a good idea at the time but I'm locked into their system.
Is anybody out there familiar with the Pika systems? Are there any DIY or cheaper alternatives? I don't mind complex DIY projects.
