I work for Hawaiian Electric companies (Maui Electric) and this is the reason that we want the Public utilities commission to revisit the NEM program.
Since we are paying retail rates for energy generated by NEM customers, it is shifting the burden of grid maintenance to the customers without PV.
Our Minimum bills for NEM customers are about 18$ a month, this is not enough to cover the cost of maintaining/upgrading the grid.
We submitted a proposal to the PUC for a flat rate connection fee as well as wholesale energy production prices.
Also to note, Hawaiian Electric never "barred" solar NEM applications, we had to conduct interconnection studies on certain circuits as they were already over 120% of Daytime Minimum Load, we had to increase that limit to 250% of DML
we also had to request help from solar companies to make changes to their Inverters
. Also, we do require customers to pay for local infrastructure updates if needed in order to interconnect to the grid (additional transformers or other safety equipment)