Background info: Couple with two toddlers. South-East QLD location, house built September 2021, HSTP system, gas cooktop with electric oven, gas instantaneous hot water system and five split system A/C units (4 units in the bedrooms + 1 large unit for the living/lounge/kitchen area). 3-phase connected to the house.
Installed a solar and battery package in November 2021. System comprises of 21kW of panels, 5kW Fronius standard inverter & 10kW Fronius GEN24 hybrid inverter and 13.8kWh of battery storage (BYD HVM unit). Total cost was about $29k out of pocket after STCs (291 STCs @ $36 each), no other loans/rebates were available at the time.
I specifically wanted this setup as I wanted to maximise my export limit (15kW on 3-phase) whilst also having the ability to charge the batteries and power the house from solar during blackouts. I live in an area that can become isolated during floods and if the power goes out then, the power won’t be coming back until the flood waters go down, which can sometimes be over a week. Off-grid capacity is limited to 10kW, but have rarely seen usage go above 4kW which is generally when the oven starts up.
Most nights see the battery capacity drop to around 20% and during 2022 there were only a handful of dark days when the battery did not fully recharge during the day.
Now for the data and bills, from 9 November 2021 until 9 November 2022:
Solar generation: 29,682 kWh
Energy exported to grid: 24,586 kWh
Energy imported from grid: 127.31 kWh
Total cost savings is calculated at ~$4,100 ($2,950 from feed-in credits @ 12c/kWh)
2022 total generation and consumption graphs from Fronius solarweb portal shown for general info, as well as yesterday’s daily graph which was a pretty cloudy day (used the oven for dinner).
As for gas, we’re on 2x 45kg exchange cylinders and only needed 1x 45kg delivered in 2022. We’ll be needing another one soon, but our gas cost since moving in has only been $381 (3 x 45kg cylinders @ $105 each, $33/cylinder rental with first year free)
https://preview.redd.it/wv8kga35qjc...bp&s=83a0aab1906422c95ac485496665aa14ac2aa0ee
https://preview.redd.it/54xvml35qjc...bp&s=2a42c93820f56c7824d4ea3db59733d9f09e9207
https://preview.redd.it/hybry145qjc...bp&s=b8163953b06505e823b312fdcb627c2974b7932c
https://preview.redd.it/ha2ho365qjc...bp&s=55666159107b43a654785ea66c9c0b5ec7745d50
https://preview.redd.it/1j3vtv35qjc...bp&s=31272aecccbf639144fcda73b0a37dbd3e3b99cc
https://preview.redd.it/tda4d645qjc...bp&s=682cf0f638c7c1582f84a77898b2429948867873
https://preview.redd.it/381zd3voqjc...bp&s=c3bea0409c15c27e68d3f415ded0123cbecd028b
Installed a solar and battery package in November 2021. System comprises of 21kW of panels, 5kW Fronius standard inverter & 10kW Fronius GEN24 hybrid inverter and 13.8kWh of battery storage (BYD HVM unit). Total cost was about $29k out of pocket after STCs (291 STCs @ $36 each), no other loans/rebates were available at the time.
I specifically wanted this setup as I wanted to maximise my export limit (15kW on 3-phase) whilst also having the ability to charge the batteries and power the house from solar during blackouts. I live in an area that can become isolated during floods and if the power goes out then, the power won’t be coming back until the flood waters go down, which can sometimes be over a week. Off-grid capacity is limited to 10kW, but have rarely seen usage go above 4kW which is generally when the oven starts up.
Most nights see the battery capacity drop to around 20% and during 2022 there were only a handful of dark days when the battery did not fully recharge during the day.
Now for the data and bills, from 9 November 2021 until 9 November 2022:
Solar generation: 29,682 kWh
Energy exported to grid: 24,586 kWh
Energy imported from grid: 127.31 kWh
Total cost savings is calculated at ~$4,100 ($2,950 from feed-in credits @ 12c/kWh)
2022 total generation and consumption graphs from Fronius solarweb portal shown for general info, as well as yesterday’s daily graph which was a pretty cloudy day (used the oven for dinner).
As for gas, we’re on 2x 45kg exchange cylinders and only needed 1x 45kg delivered in 2022. We’ll be needing another one soon, but our gas cost since moving in has only been $381 (3 x 45kg cylinders @ $105 each, $33/cylinder rental with first year free)
https://preview.redd.it/wv8kga35qjc...bp&s=83a0aab1906422c95ac485496665aa14ac2aa0ee
https://preview.redd.it/54xvml35qjc...bp&s=2a42c93820f56c7824d4ea3db59733d9f09e9207
https://preview.redd.it/hybry145qjc...bp&s=b8163953b06505e823b312fdcb627c2974b7932c
https://preview.redd.it/ha2ho365qjc...bp&s=55666159107b43a654785ea66c9c0b5ec7745d50
https://preview.redd.it/1j3vtv35qjc...bp&s=31272aecccbf639144fcda73b0a37dbd3e3b99cc
https://preview.redd.it/tda4d645qjc...bp&s=682cf0f638c7c1582f84a77898b2429948867873
https://preview.redd.it/381zd3voqjc...bp&s=c3bea0409c15c27e68d3f415ded0123cbecd028b