December generation 2023

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Fintray
Posts: 1553
Joined: Mon May 31, 2021 6:37 pm
Location: Aberdeenshire

December generation 2023

#1

Post by Fintray »

Bit early but such a dull day I'm not expecting much from the PV.

My results for December were:

3.87 kWp, slope 50 degrees, due south, lat 57.15

Total generation: 65kWh

Daily average: 2.1kWh

Generation per kWp: 16.8kWh

Daily average per kWp: 0.54kWh

PVGIS: 62.1kWh

%PVGIS: 105%
3.87kWp PV
10.24kWp PV SolarEdge system
Tesla Powerwall 2
100 x 47mm Navitron tubes (still being installed!) Now likely to be removed for more PV.
MK2 PV router DHW diverter
Morso 5kW WBS
Vaillant AroTherm 10kW ASHP
Nissan Leaf
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Joeboy
Posts: 8083
Joined: Mon May 31, 2021 4:22 pm
Location: Inverurie

Re: December generation 2023

#2

Post by Joeboy »

Dec 23
Solaredge PV 18kWh
Victron PV 33kWh
Hoymiles PV 11kWh
Enphase PV 1kWh
Graig Fatha WT 1,041kWh
Total RE generation 1,104kWh

Bought 2,926 kWh of electricity which is a split of 72.7%/27.3% in favour of the grid.

Zero gas! :D
19.7kW PV SE, VI, HM, EN & DW
Ripple 7kW WT & Gen to date 19MWh
42kWh LFPO4 storage
95kWh Heater storage
12kWh 210ltr HWT.
73kWh HI5
Deep insulation, air leak ct'd home
Zoned GCH & Hive 2
WBSx2
Low energy bulbs
Veg patches & fruit trees
Moxi
Posts: 2249
Joined: Sun Oct 31, 2021 3:46 pm

Re: December generation 2023

#3

Post by Moxi »

28.67kWh a bad December even without losing the ( too ) mobile array.

On the plus side on the first of January before 11 pm we have already harvested 231Wh and have 192Wp incoming which is better than most days over December so at least here it’s a very very happy new year :)

Moxi

Finished the day with a whole kWh ! After December that’s really brilliant 🤩
Last edited by Moxi on Mon Jan 01, 2024 5:46 pm, edited 1 time in total.
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nowty
Posts: 5777
Joined: Mon May 31, 2021 2:36 pm
Location: South Coast

Re: December generation 2023

#4

Post by nowty »

Nowty Towers Power Station
Main 4kW PV system generated 61 kWh which is about 43% below baseline, in fact worst month ever in 13 years. :evil:
Total PV arrays generated 136 kWh.

Electric Import was 2244 kWh.
Gas import was 57 kWh.
Out of house EV charging was 176 kWh.
Petrol used in EV hybrid was 0 kWh.
Total imported energy use 2477 kWh

Solar PV / Battery electric export was 75 kWh.
Ripple GF wind farm generated 1655 kWh which is 24% above baseline and a new monthly record. :mrgreen:
Total energy offset 1730 kWh

Net energy import (this month) for Nowty Towers 747 kWh :evil:

2023 (cumulative) Net Energy Import 1848 kWh :evil:
18.7kW PV > 109MWh generated
Ripple 6.6kW Wind + 4.5kW PV > 26MWh generated
5 Other RE Coop's
105kWh EV storage
60kWh Home battery storage
40kWh Thermal storage
GSHP + A2A HP's
Rain water use > 510 m3
resybaby
Posts: 303
Joined: Thu Aug 17, 2023 3:33 pm
Location: Cornwalls North Coast

Re: December generation 2023

#5

Post by resybaby »

4kw FIT system generated 63kwh - my poorest December since instalation.
5.45kw Non FIT system generated 109.6kwh

Need to do a bit of investigative/monitoring work based on these numbers, as both systems side by side on the same south facing roof but seem worlds away from each other, even when factoring in the additional 1.45kw and better pv efficency.
4.0kw FIT PV solar Sunnyboy 4000tl & 7 x 570w JA solar panels
7.08kw JA Solar panels & Sunsynk ECCO 3.6kw.
7 x US5000 Pylontechs.
4500l RWH
Full Biomass heating system
iBoost HW divertor
Full house internal walls insulation
600min Loft insulation
dan_b
Posts: 2288
Joined: Tue Jun 15, 2021 10:16 am
Location: SW London

Re: December generation 2023

#6

Post by dan_b »

Stats for the work array for December

Solar Production - 107.3kWh
Self consumption - 105.9kWh
Export - 1.34kWh

Overall building consumption - 2.65MWh
Import - 2.54MWh

Total for 2024

Overall consumption - 27.15MWh
Overall generation - 9.28MWh
Self consumption - 6.27MWh
Export - 3.01MWh


Here's to the sunnier days ahead in 2024!
Last edited by dan_b on Tue Jan 02, 2024 10:14 am, edited 1 time in total.
Tesla Model 3 Performance
Oversees an 11kWp solar array at work
richbee
Posts: 601
Joined: Tue Apr 19, 2022 3:39 pm
Location: Northumberland

Re: December generation 2023

#7

Post by richbee »

December figures - 52kWh generated - above PVGIS of 45kWh, but lower than last year of 62kWh.

Total for the year was 4566kWh - above PVGIS of 4054kWh - Happy with that for my first full year :mrgreen:
Solar PV since July '22:
5.6kWp east/west facing
3.6kW Sunsynk hybrid inverter
2x 5.12kWh Sunsynk batteries
1.6kWp Hoymiles East/West facing PV on the man cave
Ripple DW 2kW
Ripple WB 200W
Yuff
Posts: 477
Joined: Sat Dec 31, 2022 1:18 pm
Location: East Midlands

Re: December generation 2023

#8

Post by Yuff »

Solar 41.88 kWh just beat last December by 700 w :)

Total import 3421 ( 2857)
Total export 120


However dec 22 I was using several free car chargers which have now disappeared, which probably saved 400 kWh in December
Mitsubishi Ecodan
ASHP 8.5kW x 2
12 x 460w Solar panels
9.5kWh GivEnergy
Batteries x 2
EVs x 4 210 kWh Batteries
Ripple 5.8 kW PV 0.547 kW Whitelaw Brae
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Krill
Posts: 386
Joined: Fri Sep 02, 2022 4:38 pm

Re: December generation 2023

#9

Post by Krill »

A bit late on this one, but December 2023:

PVGIS: 190 kWh
Actual: 59 kWh

Absolutely awful.

But for all that Octopus have made the app work for calculating the Flux tariff.

From 01/7/23 to 31/12/23, including saving sessions, 6.4 kWp and 14kWh worth of batteries was cost neutral including gas import and standing charges.
Solar PV: 6.4kW solar PV (Eurener MEPV 400W*16)
PV Inverter: Solis 6kW inverter
Batteries: 14.4kWh LiFePO4 batteries (Pylontech US5000*3)
Battery Inverter: LuxPowertek 3600 ACS*2 battery inverter
WBS: 8kW Hunter Avalon 6 Multifuel burner (wood only)
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