ASHP, MVHR, PV and EV combo

Is the month tested included in the period mean it is tested against.

This is really a problem with using a statistical mean as it includes the extremes.

It is why the median is often used.

 

When looking at sunlight data, it is usual to create two sets of data, one that includes the night, and the other that excludes it.

 

Hi @SteamyTea This is not sunlight data, only PV energy production based on my set up over the years 2011 to 2020 using PGIS data. Figures are kWhs

 

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
2011	179	241	600	800	856	773	780	690	569	420	248	180	6,337
2012	221	286	612	689	775	702	812	647	585	310	258	185	6,083
2013	182	269	426	695	764	801	920	782	522	393	251	182	6,187
2014	222	353	647	679	795	886	931	744	573	382	228	188	6,627
2015	237	274	546	787	710	843	777	624	662	401	174	155	6,190
2016	207	312	538	707	826	706	805	785	528	460	272	190	6,337
2017	236	264	474	736	795	852	771	727	501	372	267	171	6,167
2018	191	380	431	635	883	879	927	685	611	470	289	147	6,528
2019	235	379	514	731	862	807	911	800	582	327	225	197	6,570
2020	195	286	576	816	971	821	806	737	620	341	235	184	6,588

 

For someone who has no PV you take a great interest...

1 minute ago, Marvin said:

or someone who has no PV you take a great interest...

What I did my BSc Dissertation in.

Inteeresting data - I suppose the size of the variations will depend on where you are in the UK and how changeable the weather/cloud cover is in your area. (coming from the Chilterns to West Yorkshire, weather  is like being on a different planet)

 

Here's a calculator for those interested in seeing what they can expect to generate depending on where they are on the planet

 

https://pvwatts.nrel.gov/

 

and enter your postcode and size and tilt etc..