Renewables: "talking 'bout my generation"

Andy_WSM

Oscargrouch wrote: »

Again, where have you got it attached??....;)

Correctly - I'm of an engineering background. I know what's right & wrong.

Besides, it doesn't move and nothing near it moves so the accuracy shouldn't change. Some evenings it claims my base load is over 700 watts, which it just isn't!

countryman_2

groovyf wrote: »

Clearly everyone's Wattson transmitters are more reliable than mine! I had a replacement sent out, and just today it's gone the way of the other one... errant reading of an extra 300W or so usage. Unplug the cable from unit and it still thinks I'm using 300W.
Maybe it simply doesn't like being powered by batteries outside in the meter wall cupboard.

Am asking for a refund on it, which means I'll have a Wattson Anywhere to sell.

(or maybe I'll just set the dashboard to "Generation only" and live with it, as I know what my appliances draw, and at least I can check the solar generation online - which was my main reason for purchase).

I can't remember if I have already said this previously on this forum but a colleague had the Wattson monitor for his Solar PV installation and was unimpressed by the significant inaccuracies and inconsistencies it would report, he had it exchanged for a replacement which was similarly incorrect so got a full refund and now has a more basic monitor but has proven more accurate and reliable, I believe it may be the Geo Solar PV .

:cool:

groovyf

Got the Geo Solo PV, but wanted more from my system (mainly online monitoring). If the Wattson really doesn't work out for me, I'll plump for the GEO Solo II as that at least has online monitoring of solar gen (if not import/export of 'leccy).
Main reason for getting it was due to the one day a few weeks ago when the inverter didn't wake up.. and I didn't know this until 5pm after getting home from work (on what was a beautiful sunny day, making it a double blow!!).

I reckon this is what's really wanted though: http://www.greenenergyoptions.co.uk/products-and-services/products/soloiii/
No cable clamps, but properly wired solution for import/export and solar gen.

zeupater

Andy_WSM wrote: »

Correctly - I'm of an engineering background. I know what's right & wrong.

Besides, it doesn't move and nothing near it moves so the accuracy shouldn't change. Some evenings it claims my base load is over 700 watts, which it just isn't!

Hi

Obviously you've checked the power factor of all of the electronic goodies (?) .... it could be that half of the reported power is simply something like an intermittent 35W circuit (/little used device) with a 0.1 power factor which any standard clamp based monitor would measure as 350VA, assume a power factor of 1 and therefore display as 350W ... our microwave is a great offender - when not in use the clock/standby circuit has a power factor of ~0.05! ....

HTH
Z

Merlin139

3.96 O's (15.75 kWh) Another spikey graph with lots of clouds moving over. Still about Est so cannot complain. Maybe off the the Pacific Island tomorrow!

Andy_WSM

zeupater wrote: »

Hi

Obviously you've checked the power factor of all of the electronic goodies (?) .... it could be that half of the reported power is simply something like an intermittent 35W circuit (/little used device) with a 0.1 power factor which any standard clamp based monitor would measure as 350VA, assume a power factor of 1 and therefore display as 350W ... our microwave is a great offender - when not in use the clock/standby circuit has a power factor of ~0.05! ....

HTH
Z

Both power factor & voltage change are an issue here.

During the evening the incoming mains is ~236v, during the day we've had numerous substation shut downs at ~256v. There is a LOT of solar here and on a Sunny day in the summer the voltage climbs & climbs until the inevitable happens.

Anyway, back to today... 4.13 O's (16.2 kWh)

countryman_2

Still chugging away at 30w but I'll call time on mine as it's just clicked over the 15kwh for the day so it's a very welcome 3.75 O's from sunny mid Linc's today

mac2008

Oscargrouch wrote: »

Hi Mac, and welcome back. History tells me; as a guesstimate, I think you now owe me at least 10 'Big Macs'.......:D

Today 4.48 O's, getting close to the illusive Hawaii. Not seen one in March since 9th of March 2014...........

I expect so! Life has rather got in the way recently.


A shade under 4 O's today - another good one ahead of submitting my Fit reading on the 20th

rosythfifer

8 Kw. 3.33 Os for me today. Just north of Forth road bridge. Due south 30 pitch 9x270 trina panels.

Not bad as they will have been covered in snow for some of that. Better was our 2Kwh total usage from this morning to now.

Oscargrouch

Andy_WSM wrote: »

Correctly - I'm of an engineering background. I know what's right & wrong.

Besides, it doesn't move and nothing near it moves so the accuracy shouldn't change. Some evenings it claims my base load is over 700 watts, which it just isn't!

Hmmm, would that be mechanical or electrical (engineering)??..Hmmm, your base load may be correct with the heating on all night...

Today 4.24 O's; that's cool.... didn't post earlier as didn't get back from work till 19:00; but checked a few Wattson results and knew there was no panic over the Spooning...:rotfl: ...