Nomura MPPTs have not been working, so an alternative is being investigated.
They basically sold us an IC with its application circuit on the board, so creating our own custom MPPTs is more desirable.
On solar sense, there is an MPPT_Interface schematic sheet. I think it would make sense to move the isolated components to the MPPT (the buffer could be removed in that case).
Here’s some research that was done previously: DIY MPPT
Other pages to be aware of in regards to Nomura MPPT Testing:
Nomura SPI Testing Nov 19/20 2019
Nomura MPPT - Documentation for Nomura MPPT and SPV1020 IC
MPPT Testing - Testing done in 2017 by Taiping
Solar Collector System Analysis Workterm Report - Work term report about Solar (including MPPTs)