I’ve been gathering quotes and info for a while. I’ve now got a shortlist of potential systems I’d like some advice/opinions on.
For a start I know I have shading issues, and have decided on the more expensive option of using Enphase microinverters. Panels are split between East and West as I have no viable North facing roof.
These are the quotes (before any Victorian Government rebate, but include the STC discount). I believe they are from reputable installers.
Q1 Option A: 6.51kW, 21 x QCells Q.Peak G4.1 310W, $9020
Option B: 6.61kW, 21 x Longi LR6-60PE 315W, $8020
Q2 Option A: : 6.51kW, 21 x Trina Honey M Plus 310W, $8229
Option B: 5.40kW, 18 x Suntech Hypro STP 300S 300W, $7395
Is it worth spending the extra $1K on the QCells vs the Longi panels in Quote 1 - ie, do they offer that much in the way of reliability/efficiency/warranty to warrant the extra $1K spend?
I didn’t ask Quoter 2 to give me a quote for 3 additional Suntech panels. Similarly to the above, how
do Suntech panels stack up against the Trina or for that matter the QCells or Longi?
Any advice and/or opinion appreciated.