SteamyTea Posted April 25, 2021 Share Posted April 25, 2021 9 hours ago, dpmiller said: I'm putting 15-18kWh into the tank each day at the minute. That's covering tank losses, water for handwashing How large are your hands. 2 Link to comment Share on other sites More sharing options...
Pocster Posted April 25, 2021 Author Share Posted April 25, 2021 (edited) On 04/04/2021 at 16:01, Thorfun said: this is true but I am offsetting the cost of the extra PV by not having to put slates on that part of the roof! I considered these pv ‘a but .... If a panel fails and has to be removed you have an exposed roof ( for peace of mind I like roof and pv to be seperate) . Also I was told in roof pv are less efficient as they don’t have the airflow compared to ‘rack’ mounted ones . Edited April 25, 2021 by pocster Link to comment Share on other sites More sharing options...
Thorfun Posted April 25, 2021 Share Posted April 25, 2021 10 minutes ago, pocster said: I considered these pv ‘a but .... If a panel fails and has to be removed you have an exposed roof ( for peace of mind I like roof and pv to be seperate) . Also I was told in roof pv are less efficient as they don’t have the airflow compared to ‘rack’ mounted ones . exposed roof if you have to remove one, sure, but there's still the membrane underneath to help keep the elements out. and surely the pigeons roosting under the on-roof panels affects the airflow as well? ? 1 Link to comment Share on other sites More sharing options...
Pocster Posted April 25, 2021 Author Share Posted April 25, 2021 (edited) 5 minutes ago, Thorfun said: exposed roof if you have to remove one, sure, but there's still the membrane underneath to help keep the elements out. and surely the pigeons roosting under the on-roof panels affects the airflow as well? ? Yeah I know . The ‘reasoning ‘ to choose between them is quite limited . I wasn’t worried about aesthetics I.e being flush with roof . Our rack ones are jet black and do not protrude from the roof very much . It was the efficiency that I preferred - can’t remember the exact values - not a lot of difference though anyway . Edited April 25, 2021 by pocster 1 Link to comment Share on other sites More sharing options...
Pocster Posted April 25, 2021 Author Share Posted April 25, 2021 Batteries almost full again so will be helping you guys out soon ! ???? Link to comment Share on other sites More sharing options...
SteamyTea Posted April 25, 2021 Share Posted April 25, 2021 (edited) 6 hours ago, pocster said: Batteries almost full again Where is all your power going. At this time if year, and with the clear skies and cold wind, you will be getting pretty close to peak production. Does not bode well for when you move in and you have all your electric toys plugged in. Edited April 25, 2021 by SteamyTea Link to comment Share on other sites More sharing options...
Thorfun Posted April 25, 2021 Share Posted April 25, 2021 1 minute ago, SteamyTea said: Where is all your power going. At this time if year, and with the clear skies and cold wind, you will be getting pretty close to peak production. Does not bode well for when you move in and you have all your electric toys plugged in. I really don't want to know about @pocster's 'electric toys' that he uses in the dungeon but I am also interested in where the stored power in the battery went overnight? 1 Link to comment Share on other sites More sharing options...
Pocster Posted April 25, 2021 Author Share Posted April 25, 2021 Just now, SteamyTea said: Where is all your power going. At this time if year, and with the clear skies and cold wind, you will be getting pretty close to peak production. Does not bode well for when you move in and you have all your electric toys plugged in. I think it bodes very well . pv hasn’t yet produced 4kw - so given the time of year pretty good . Most I’ve seen is 3.2kw . I charge my car - so effectively another battery store . House ( as not living on site ) doesn’t use a lot . But SWMBO Will occasionally use the shredder ( on for bloody hours ) Tesla house battery sucks up the excess before exporting . Link to comment Share on other sites More sharing options...
Pocster Posted April 25, 2021 Author Share Posted April 25, 2021 1 minute ago, Thorfun said: I really don't want to know about @pocster's 'electric toys' that he uses in the dungeon but I am also interested in where the stored power in the battery went overnight? Remember ASHP and ufh operational on half the house . So if temp drops; ufh will keep house at 17 degrees . Also Uvc will draw a bit to keep tank of hot water . So whilst I say “ not living on site “ ufh above ground is functional . A tank of hot water is always available. When we do move in the extra draw will be lighting at night , tv , fridge/ freezer . Ufh heating is crude at the moment I.e only temperature sensor is in the bathroom which in turn dictates heating for the *entire* upstairs . House not 100% air tight yet - will be though . But equally zero ufh enabled below ground . Link to comment Share on other sites More sharing options...
SteamyTea Posted April 25, 2021 Share Posted April 25, 2021 4 minutes ago, pocster said: pv hasn’t yet produced 4kw - so given the time of year pretty good . Most I’ve seen is 3.2kw This time of year I would be expecting to see peak power some times. This is not the same as peak production. One is kW and the other is kWh. Summer can often produce less as higher temperatures and more variable cloud patterns can hamper production. So while the overall levels are usually highest in June, you can get some exceptional days in the spring and autumn. Can you calculate how much energy is lost from the PW overnight, and where it goes. I forgot you charged your biggest toy up. Link to comment Share on other sites More sharing options...
Pocster Posted April 25, 2021 Author Share Posted April 25, 2021 (edited) 8 minutes ago, SteamyTea said: Can you calculate how much energy is lost from the PW overnight, and where it goes. Lost ? You mean “ used “ uvc , cctv , file server , Nas , ufh ( if temp drops enough ) , false ‘ movement triggers ‘ causing lighting to come on ( shadows , sunrise etc . ; I’ll fix this ) . There’s lots of refinement to be done here . When I visit for example ; lights come on due to movement irrespective of luminosity of the room I.e is wasteful . Edited April 25, 2021 by pocster Link to comment Share on other sites More sharing options...
SteamyTea Posted April 25, 2021 Share Posted April 25, 2021 8 minutes ago, pocster said: uvc , cctv , file server , Nas , ufh ( if temp drops enough ) , false ‘ movement triggers ‘ causing lighting to come on ( shadows , sunrise etc . ; I’ll fix this ) . They should all be low power, except ASHP. And most will only be on for a few minutes. Link to comment Share on other sites More sharing options...
Pocster Posted April 25, 2021 Author Share Posted April 25, 2021 2 minutes ago, SteamyTea said: They should all be low power, except ASHP. And most will only be on for a few minutes. So ? Bite my ass then . Link to comment Share on other sites More sharing options...
Pocster Posted April 25, 2021 Author Share Posted April 25, 2021 3 minutes ago, SteamyTea said: They should all be low power, except ASHP. And most will only be on for a few minutes. Consumption from yesterday . I assume most is ASHP and uvc Link to comment Share on other sites More sharing options...
SteamyTea Posted April 25, 2021 Share Posted April 25, 2021 2 minutes ago, pocster said: assume most is ASHP and uvc Probably, all very spiky isn't it. I know it is not all commissioned yet, but is the ASHP cycling a lot? And what is that large 'afternoon delight' spike' cameral lights? Link to comment Share on other sites More sharing options...
Thorfun Posted April 25, 2021 Share Posted April 25, 2021 5 minutes ago, pocster said: Consumption from yesterday . I assume most is ASHP and uvc looks like you need to use some of it to charge your phone! ? Link to comment Share on other sites More sharing options...
Pocster Posted April 25, 2021 Author Share Posted April 25, 2021 6 minutes ago, SteamyTea said: Probably, all very spiky isn't it. I know it is not all commissioned yet, but is the ASHP cycling a lot? And what is that large 'afternoon delight' spike' cameral lights? Could be me running the shower and finding leaks Link to comment Share on other sites More sharing options...
SteamyTea Posted April 25, 2021 Share Posted April 25, 2021 1 minute ago, pocster said: Could be me running the shower and finding leaks As an experiment, turn it off (ASHP) for a full 24 hours. 48 is even better. Then see you next Tuesday. Link to comment Share on other sites More sharing options...
Pocster Posted April 25, 2021 Author Share Posted April 25, 2021 36 minutes ago, SteamyTea said: As an experiment, turn it off (ASHP) for a full 24 hours. 48 is even better. Then see you next Tuesday. I’m controlling the ASHP so probably need to adjust the HA so it only checks the temperature perhaps just a few times an hour .... Link to comment Share on other sites More sharing options...
Pocster Posted April 25, 2021 Author Share Posted April 25, 2021 6 minutes ago, pocster said: I’m controlling the ASHP so probably need to adjust the HA so it only checks the temperature perhaps just a few times an hour .... Does it actually matter though ? . If it draws more to keep temperature in 20 mins or 40 mins throughout the day ( or night ) - what’s the concern ?? Link to comment Share on other sites More sharing options...
SteamyTea Posted April 25, 2021 Share Posted April 25, 2021 6 minutes ago, pocster said: I’m controlling the ASHP so probably need to adjust the HA so it only checks the temperature perhaps just a few times an hour .... Control freak. One advantage of checking with the ASHP off at the moment is we are having unique weather. Sunny, dry wind, and just over 12 hours of daylight. Almost ideal lime to see what the house does without extra inputs. Link to comment Share on other sites More sharing options...
SteamyTea Posted April 25, 2021 Share Posted April 25, 2021 1 minute ago, pocster said: Does it actually matter though ? . If it draws more to keep temperature in 20 mins or 40 mins throughout the day ( or night ) - what’s the concern ?? Just seems high consumption and spiky generally means inefficient. But like a new driver, gas, brake, gas, brake and so forth. An empty house is the best time to gauge the performance. 1 Link to comment Share on other sites More sharing options...
Pocster Posted April 25, 2021 Author Share Posted April 25, 2021 1 hour ago, SteamyTea said: Just seems high consumption and spiky generally means inefficient. But like a new driver, gas, brake, gas, brake and so forth. An empty house is the best time to gauge the performance. Looking remotely I can see it’s not ufh . So would guess ASHP and uvc are cycling . I seem to recall there was a buffer heating option which was on . Could that be the issue ? . Tomorrow I’ll turn off heating and hot water so expect consumption to drop Link to comment Share on other sites More sharing options...
Temp Posted April 26, 2021 Share Posted April 26, 2021 OT : Saw a white Tesla today and thought the reg was something like TE55 1AA but it doesnt show up on the MOT data base. 1 Link to comment Share on other sites More sharing options...
Pocster Posted April 26, 2021 Author Share Posted April 26, 2021 @SteamyTea just for you . Spike gone ! What was it ? . I forgot I had a tiny floor area ( 6 sq m ) permanently on low for ufh ( to avoid condensation around my HA stuff ) . Off now ? 1 Link to comment Share on other sites More sharing options...
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