Been an interesting week or three setting up our new solar system. Consists on 30 — 270 w panels ( 8.1 KWh array ) .
Panels round the back of our place
Inside I decided to use part of my virtual cycling room as a battery store house. Has this pretty impressive and very heavy set of long life agm batteries . All up 1.2 ton. Was a major effort to locate — took four big guys and lots of huffing and puffing.
All the kit has been supplied by an Auckland business called “AAsolar”. They are a great bunch of helpful guys– good to deal with.
Have used a sophisticated Swiss brand of programmable inverter charger . We are presently testing this system. My design spec is that we will be able to store up to 20 KWh ( useable ) that we can draw down on overnight. This gives us a nice margin as data incoming from our smart metre suggests we need about 10 KWh per 15 hours of night till solar production– PV .
With changes to consumption patterns — eg running bigger appliances in the mid day time when the sun is giving us heaps of juice and changing to a bunch of LED lighting options we think we may be in reach of Eldorado — the golden day when the power co may not be hitting us up with big bills any more .
The Internet allows full access to see how the solar ( PV) is going and the Swiss brand of inverter ” Studer ” is connected via the net for monitoring all functions — batteries , and programming the huge range of potential parameters .
The power companies are paying a pathetic amount to customers who feed back into the grid ( approx 1/3 of what they charge ) so the model of “self consumption ” by own storage looks promising. We will still have a certain amount feeding back into the grid — but the target is to store the nights usage ( about 10 KWh ) during the daytime.
Will keep this post running — it will be a learning curve to share.