Renewables: "talking 'bout my generation"

Andy_WSM

I am at risk of a spooning today :eek:

0.44 O's (1.72kWh)

legoman62

Andy_WSM wrote: »

I am at risk of a spooning today :eek:

0.44 O's (1.72kWh)

Andy, looking at your leccy usage figures on Wattson:eek: I'd use it to knock some sense into your lodger:mad:

0.57 O's here today:D

Edit.

Andy_WSM wrote: »

Well your case isn't resting very well.

Just got home, first thing I did was compare the generation meter to the invertor.

So the numbers are: Generation meter: 14160 kWh. Inv: 14114 kWh.

That's not even a 0.5% dicrepency, is it? If anyone care to do the maths and the invertor is under reading, not over reading in any case.

Wattson must be fibbing then:)

Andy_WSM

legoman62 wrote: »

Andy, looking at your leccy usage figures on Wattson:eek: I'd use it to knock some sense into your lodger:mad:

Ah, he's not been here this weekend, neither was I - the consumption is because the cats insisted I left the heating on

legoman62 wrote: »

Wattson must be fibbing then:)

My Wattson is at least 10% out, sometimes a lot more, can't find any way of fixing it. Some nights for no reason at all it starts recording generation - in the night!

legoman62

Andy_WSM wrote: »

My Wattson is at least 10% out, sometimes a lot more, can't find any way of fixing it. Some nights for no reason at all it starts recording generation - in the night!

I've adjusted my voltage settings up/down in Holmes to make Wattson more accurate.

I find on days of low generation Wattson is slightly higher, and high generation days it is the reverse:)

Andy_WSM

legoman62 wrote: »

I've adjusted my voltage settings up/down in Holmes to make Wattson more accurate.

I find on days of low generation Wattson is slightly higher, and high generation days it is the reverse:)

Yes, it's likely a voltage issue here. It does vary between 225v and 250v, we've even had blackouts caused by overvoltage when the grid voltage has exceeded 256v several times.

tunnel

2.3 O's yesterday and another 1.55 O's today(SSW only), good job really with the piles of washing we had, its a never ending cycle with 2 young kids.


At least I avoided the spoon

Oscargrouch

Andy_WSM wrote: »

I am at risk of a spooning today :eek:

0.44 O's (1.72kWh)

...............

Looked at what’s going on today regarding Wattson / Inverter / Generation Meter; here are some findings: (Not that I am obsessed with Solar)
This morning Inverter kicked in, showing it had done 1 kWh today. Inverter still read the same as it did last night. At 09:45, Gen Meter was showing 0.20 kWh, Inverter 1.2 kWh (+83%). At 13:15, Gen Meter was 2.2 kWh, Inverter 3.3 kWh (+33.3%). At 16:15, Gen Meter was 4.2 kWh , Inverter 5.3 kWh (+20.7%).

So, if today had been a worse day than it turned out, and reading was taken from Inverter, it could have been exaggerated by anything between +20.7% - +83% depending on how bad the day was.

During the 3 yrs 2 months that I have had the system the Gen Meter has registered 7,812 kWh, compared to the Inverters figure of 8,020 kWh. (Inverter being 2.6% higher).

Doing a similar comparison with Wattson over a 2 year period: (as I have only had it since 24th November 2012) Wattson is 2.7% under the Gen Meter numbers. The Wattson I have, would appear to under record during the winter period, then over record in the summer; but gets pretty close over a longer period of time. Part of the reason is that the unit I have, records 0.067 kWh as soon as the Inverter starts and does the same once output has dropped less than 0.067 kWh until the Inverter shuts down. This delay in getting over the 0.067 kWh is increased during the winter months or very cloudy days.

Anyway, back to the office: 1.68 O’s Today. Wattson at Home made it 1.608 O’s ( - 4.2%). If the day had been longer and sunnier, this difference would have been less.

All can see on http://wattson.energyhive.com/dashboard/oscarsenergy ......

Sterlingtimes

Back today after a few computer problems. 1.39 O's today. Standing at 75% PVGIS, the same as the correspondent above. Fitted the light bulb to the iBoost. Yes, the bulb does flash upon export (as I was warned) so I cannot install in that state in a visible position: will annoy the family. I will need an alternative solution.

theboylard

Today was a bright start then hazy, but still pulled in 5.394 kWh / 1.35 ho's, so not bad considering.

Sitting at 93.99% of Jan PVGIS, so need to rustle up 6.3 kWh to beat the target.

Weather looks rubbish for the remainder of the month, might struggle to make that ho and a bit

1961Nick

theboylard wrote: »

Weather looks rubbish for the remainder of the month, might struggle to make that ho and a bit

The weather here is 3x partly cloudy, 2x cloudy & 1x snow for the remainder of January. That would normally equate to about 20kWh & I need 27 for the PVGIS.