SCOP
I’m curious to know what everyone’s SCOP on their ASHPs is. If you’ve been running your pump for a year (one winter and one summer) I’d love to know who has an annual COP of over 3.
Please pop your numbers below.
Get a copy of The Ultimate Guide to Heat Pumps
Subscribe and follow our Homeowners’ Q&A heat pump podcast
I can only use the Carnot number from Emoncms HP app. Using the Carnot formula my number is 4.22. My total energy usage for the year 3634kwh. The "SCOP" number compares to previous oil usage of 1600litres/annum (16000kwh) and estimated energy usage from EPC and estimated energy usage from heat loss calculation.
How do you work out the COP some say its yield divided by consumption and others say yield plus consumption divided by consumption??
COP is heat delivered divided by power consumed.
So 100 kW / 20 kW = 5 COP
On my system (Vaillant Arotherm Plus 5kW hybrid system) it is showing from 1st January through to today, it has consumed 686 kWh and the yield is 3605 kWh, so a COP of 5.25, so happy with that, although the numbers are obviously a bit of a fudge as the boiler kicks in when the COP would be lower.
Our lifetime COP is 2.71 as we enter our fourth winter with this heat pump.
Get a copy of The Ultimate Guide to Heat Pumps
Subscribe and follow our Homeowners’ Q&A heat pump podcast
Not sure if this has been posted. Theoretical but interesting.
We just had the first annual service. Ecodan R32 8.5kW as sole source for heating and hot water. Reading the numbers off the controller works out to 3.15 for the year. I was expecting lower because the hot water figure (captured on a third-party app called MMSPHeatPump) isn't great, even in summer.
- 26 Forums
- 2,242 Topics
- 49.9 K Posts
- 241 Online
- 5,903 Members
Join Us!
Podcast Picks
Latest Posts
-
I think we could've all guessed that from your descript...
By Transparent , 4 minutes ago
-
RE: New build installation query
Assuming it is your property, did the previous owners p...
By Batpred , 20 minutes ago
-
RE: Midea ASHP – how to set weather compensation
@jamespa and @cathoderay thanks very much. As always ...
By pash44pump , 24 minutes ago
-
RE: Solar inverters - where does the energy go when clipping?
@transparent Thank you for the information ...
By Batpred , 31 minutes ago
-
RE: What should we do with our Aga?
@annahickson We had a similar dilemma with our oil-fire...
By Morgan , 38 minutes ago
-
Upgrading radiators is almost never a bad thing to do, ...
By JamesPa , 1 hour ago
-
RE: The Hidden Secret to a Successful Heat Pump: Pipe Size Matters
17l/min is enough for only 6kW at 5C DT, not surprising...
By JamesPa , 2 hours ago
-
@bontwoody The extra battery capacity is the solution f...
By Toodles , 2 hours ago
-
RE: End of Summer Time Reminder to Ecodan owners
As I understand it....ha....Melcoud will over ride any ...
By Abernyte , 3 hours ago
-
Finding flow temp data from Samsung 16kw HP
Hello, I have a Samsung MIM-E03 16kwh heat pump, and ...
By martingale , 11 hours ago
-
RE: Faulty Clivet heat pump out of the box
We would never win these projects as we spend 1 whole d...
By ASHP-BOBBA , 13 hours ago
-
RE: Ecodan Melcloud Temperature Change
@gruff2001 - if set on WC, the app is only communicatin...
By ASHP-BOBBA , 14 hours ago
-
RE: RDSAP10 effect on existing heat pump EPC rating?
@toodles indeed. the question of proof will only get ...
By Tim441 , 18 hours ago
-
RE: My experience with 3 heat pump surveys: Heat Geek, British Gas & Octopus
@jords were you not given a copy of the full heat loss ...
By Chas Barry , 20 hours ago
-
RE: Should Our Water Circulation Pump Be Configured to Run All The Time?
I signed up here due to finding this question via a Goo...
By Unsure , 20 hours ago
-
RE: Mitsu PAR-WT60 Wireless Controller
Aslo, subject to FTC version, Your thermostat will cont...
By ASHP-BOBBA , 23 hours ago
-
@bontwoody Thanks for the info. Quite a spread of value...
By springswood , 23 hours ago
-
RE: Daikin Octopus installation update - I saw my first defrost. 😍😂
Thing is it is one of those intermittent things. Yes I ...
By Jancold , 24 hours ago
-


