Hello everyone,
Another year has passed, which means it’s time to review how much electricity the photovoltaic system produced this year, how much of that was used for self-consumption, and how much was fed back into the grid.
System size: 3.12 kWp
Commissioning date: November 2016
Location: Lower Austria
Heating system: Air-to-water heat pump
No pool or other significant loads that could benefit much from the photovoltaic system
Produced amount: 3650 kWh
Self-consumption: 1000 kWh
Fed into the grid: 2650 kWh
Self-consumption rate: 27.4% (previous year 28.1%)
I am quite satisfied with the self-consumption rate.
I’m looking forward to your data and possibly some tips on how to improve it even further.
Best regards
Another year has passed, which means it’s time to review how much electricity the photovoltaic system produced this year, how much of that was used for self-consumption, and how much was fed back into the grid.
System size: 3.12 kWp
Commissioning date: November 2016
Location: Lower Austria
Heating system: Air-to-water heat pump
No pool or other significant loads that could benefit much from the photovoltaic system
Produced amount: 3650 kWh
Self-consumption: 1000 kWh
Fed into the grid: 2650 kWh
Self-consumption rate: 27.4% (previous year 28.1%)
I am quite satisfied with the self-consumption rate.
I’m looking forward to your data and possibly some tips on how to improve it even further.
Best regards
Zaba12 schrieb:
I just can’t get the grin off my face regarding your level of self-sufficiency :p.
You’re right that three months of production don’t really make a big difference.
On the other hand, December, January, and February are exactly the months that drag your average annual self-sufficiency down to 30% 🙂 Yes, that’s true. Although looking at the whole year, I do expect a bit more than 30%, but definitely not 69%.
Something around 40–50% should actually be achievable with the storage system. (Which has been operational since the beginning of January)
debaser schrieb:
Yes, that's correct. Although over the whole year I would expect a bit more than 30%, definitely not 69%.
Somewhere around 40 - 50% should be achievable with the storage system. (Which has been in operation since the beginning of January) Definitely feasible with storage.
O
Obstlerbaum15 Jan 2019 14:13Not to hijack the entire topic, but since I’m facing this decision: who builds a modern storage peripheral to supply the house circuits? I would like the storage to modulate its outputs transparently onto the main line until it runs low, and then smoothly transition to the main supply. In other words, all devices continue running without noticing any interruption. I have searched but haven’t found anything that serves this purpose...
Obstlerbaum schrieb:
Without wanting to completely hijack the topic, since I’m facing this decision: who builds a modern battery storage peripheral to supply the home circuits? I would like the battery to modulate its outputs transparently onto the main line until it’s nearly depleted, followed by a smooth transition to the main supply. In other words, all devices continue to run without noticing any change. I’ve searched but haven’t found anything that fulfills this purpose... I don’t quite understand the question. This is exactly what a typical photovoltaic battery system does. As soon as the photovoltaic power is no longer sufficient to supply the house’s consumption, the battery seamlessly takes over until it’s empty. Once the battery is depleted, the system switches back to drawing power from the grid. The devices don’t notice any difference at all.
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