If it helps anyone I wrote a super dumb python script to pull this data and plot it:
import urllib import xml.etree.ElementTree as ET from pandas import DataFrame, to_datetime response = urllib.request.urlopen('http://metwdb-openaccess.ichec.ie/metno-wdb2ts/locationforecast?lat=53.3;long=-6.25') data = response.read() tree = ET.fromstring(data) parent_map = {c:p for p in tree.iter() for c in p} result_dict = {} for n in tree.iter('globalRadiation'): result_dict[parent_map[parent_map[n]].attrib['from']] = n.attrib['value'] # print(parent_map[parent_map[n]].attrib['from'], n.attrib['value']) df = DataFrame.from_dict(result_dict, orient='index') df.index = df.index.map(to_datetime) df.columns = ['globalRadiation'] df['globalRadiation'] = df.globalRadiation.astype('float') print (df.resample('D').sum()) df.globalRadiation.plot()
I gave that a lash garo, looks like "pandas" module missing for me? (not too familiar with python - so don't know if that's a core library, or an addon) I guess an addon you have installed? But yeah, I do the same thing anyway with the data, but just was curious.
What do you use for python? If you use anaconda/miniconda just do "conda install pandas" Yes you need to install pandas. It's a pretty cool package for data processing. https://pandas.pydata.org/
A big 🖕 to September...
Wait till you see Dec/Jan!
Yeah Dec/Jan is estimated around 200kwh but I'm expecting around 100kwh real values but Sept was supposed to be 500kwh and not even 200 yet.
I did less than 70kWh in December!
In other news my Energia deal ends next month and I'll be switching to SSE. They're not the cheapest, actually about 1c/unit day and night.
But because I've bought a new VW ID3, I'll get €675 of credit.
That cr is a lot, presume you worked out the maths on the Energia EV plan which has crazy cheap night rate, good for charging your batteries over Winter
Still have to look at it but it would need to be a serious difference to overcome nearly €700 in credit.
What's your yearly useage? I'll stick it into my spreadsheet this evening.
But your right a 700 credit will take a lot to overcome.
What's the sse unit rates and standing charge your getting
For the year ending July 2021:
Consumption - 9044kWh
Generation - 4822kWh
Purchase - 4731kWh
My night use average over the last 3 bills since solar install is 78%.
EI - Day 16.32, Night 8.06, SC €325
SSE - Day 18.13, Night 8.97, SC €332
I'm currently with Energia but I think that means even if I switch to the EV rate, I won't get all the new customer discounts.
So of the purchase 78% is night.
Yeah they give you full discount now for renewing, as that's what I'm on now.
Yeah, but even if 100% of my usage was night, and there's a 3.5c difference in the rates, that would be about 200 units at 3.5c = €70 cheaper.
I'll certainly look at the Energia EV rate next year but for now I can't see any better option than the SSE credit.
Is there any way of measuring a slope without getting onto the roof?
Either measure slope of rafters, use trigonometry, or try to find scale plans from a neighbor's planning application.
@DrPhilG
Yeah, that cash back blows everyone out of the water...
Current provider = what I was paying before my contract was up in july 15c day/7c night
Day use : 1040, Night :3691
Standard Rural is what you'd get (and a new customer) now if you just renewed with energia
That is the baseline/zero point for savings.
Same calculation without SSE cashback:
Can I ask what device does that logging for you ?
Looks ideal.
Thanks
I have a Solis inverter .. and the Solis data logging stick to a free Solis cloud account
Could you run those numbers through your spreadsheet again @graememk?
Just had SSE on the phone to confirm figures, and eligibility for the €675.
They have 2 options. Both are €332.26 for standing charge.
Option 1 = 18.13 day, 8.97 night
Option 2 = 23.3 day, 11.53 night
Both quite high, and I'd be looking elsewhere if it wasn't for the VW credit. Option 2 a lot higher rate, but it gives me €200 of credit IN ADDITION to the €675 deal.
assumptions:
1040 Day units, 3691 Night.
First decent day in quite a while today
Meanwhile I'm threatening to break the record for worst day ever.
1.5kWh last time I checked.
My god, the difference with a few 100's km. Got my batteries filled and juice into the car and into Eddi
27KW in the South East today. Exported 11kw.
28.7kWh over in the west today. Almost a perfect day for this time of year.
Best day since August 28th
19.4 in the midlands
Lol, 2.6kWh in Donegal.
I think I had around 32+ kWh at around 6pm today and it was still plugging away... I'm not living there yet and not connected to the auld interweb so I will get a propoer read tomorrow (6kWp system Cork)
A few weeks makes some difference come 6:15 no production but a good day none the less
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