#SolarUpdate

I may be onto my first close to net zero import day today.

Yesterday, they pushed some firmware updates and a fresh battery calibration to my system.

This meant that around 4pm my battery discharged entirely to the house & grid; solar was switched off.

It was then recharged from solar (very little at 7pm) and the grid.

So battery use never started until almost 9pm and I was ill, so early night. Meant it lasted all night.

Still had 12% left

#Solar
#Battery
#GoingGreen

#SolarUpdate

How much power have we imported from the grid since installing #Solar and #Battery system in early Jan?

Jan: 246kwh
Feb: 226kwh
Mar: 211kwh
Apr: 108kwh

How much solar have we consumed in the house since Jan?

Jan: 53kwh
Feb: 79kwh
Mar: 153kwh
Apr: 205kwh

How much battery power have we used since Jan?

Jan: 17kwh
Feb: 39kwh
Mar: 64kwh
Apr: 81kwh

How much solar exported back to the grid since Jan?

Jan: 1kwh
Feb: 16kwh
Mar: 58kwh
Apr: 163kwh

#GoingGreen

1/2

#SolarUpdate

The savings continue to impress as we have reasonable weather.

25 days of April have cost in the region of £14.65 (£21.16 inc standing charge & VAT)

By the end of the month I'm hoping that solar use will be double imported and the battery use will equal import.

Because we were away until nearly 11pm yesterday and went to bed pretty soon after. The full battery was running an idle house and lasted until around 3:30AM.

Zero use days coming soon

#Solar
#Battery
#GoingGreen

#SolarUpdate

20 days of April and we've used roughly 75kwh of electricity from the grid. Which has cost approximately £11.90. That doesn't include Standing charges or VAT. So That's more in the region of £17.30

But... that's ONLY £17.30 for 20 days electricity.

Data shows we've used 134kwh of solar directly. 63kwh from the battery and sent 110kwh back to the grid this month.

We've sent more electricity back to the grid than we've actually used.

#Solar
#Battery
#GoingGreen

#SolarUpdate

That's what I like to see, 3.36kw generated, and 3,38kw being used by the house.

Perfectly balanced as all things should be #CalmDownThanos

#Solar
#Battery
#GoingGreen

#SolarUpdate

As we were away for about 36hrs. The house was left to fend for itself with minimal use.

So with lots of sun on Friday, the battery was fully charged before lunch. Solar powered the house until after 7pm and the battery lasted until after 6am the following day. Solar then took over from a little after 7am and covered the house all day again. Battery lasted until after midnight again.

Electricity costs for 2 days, about 40p (not inc vat or sc).

#Solar
#Battery
#GoingGreen

#SolarUpdate

A tale of two graphs.

The last two days have swung from one extreme to the next.

Graph 1 is Tuesdays import. Some data missing due to server maintenance. But it adds about 1.5kwh to the import. So whilst it says we used 7p of electricity, it was more like 35p. Battery from the previous day lasted until 1-2am.

Graph 2, shows a day with almost no generation at all. 2kwh all day. Cost rose to £2.15 with no major appliances used.

#Solar
#Battery
#GoingGreen

#SolarUpdate

Another record broken... according to the data, we spent £5.58 on electricity for the last week (no vat or standing charges inc). Importing less than 30kwh. We've had 2 days that we didn't get a fully charged battery, which has been lasting until very late at night, or even into the early hrs of the next day.

We've had lower than average use, as kitchen is being done. No hob/oven, only used washing machine and tumble dryer twice in 8 days.

#Solar
#Battery
#GoingGreen

#SolarUpdate

yesterday was a new record. We generated in excess of 22kwh, smashing the previous 18kwh by rather a lot.

As I was out for part of the day, the battery was charged up early and over 12kwh was sent back to the grid.... Really need to sort out getting paid for that.

Thanks to clocks jumping forward, lighter evenings means the battery is lasting until around 11pm now. As days get longer, that will stretch out further overnight.

#Solar
#Battery
#GoingGreen

#SolarUpdate

I finally have a complete 30 day (no gaps) picture of usage.

This is the cost for the last 30 days of electricity import from the grid.

We've gone from around 400-450 units of energy imported to 213 for the last 30 days.

Some of this is accounted for with days getting longer, lights on for less. It's also the recovery period post op for me, which meant early nights & PC's being turned of earlier.

But about 50% reduction is aweseome.

#Solar
#Battery
#GoingGreen

http://www.arrl.org/news/view/the-k7ra-solar-update-752 #hamradio #arrl #k7ra #solarupdate