Geyser timer solution for solar

duderoo said:
Deye 8kW and 10 kwh battery but only goes to 30% and so 7.6kwh when fully charged but a struggle the past few days with cloudy weather and all.

Solar is direct and east side but as the sun angle is screwed in winter and the water so cold, it barely does much tbh.

Panels are 550W, but all about the angle's of the sun and that so a challenge as mentioned. 5 on one mppt and 5 on the other.

Whatever the water temp is maybe 25-30 degrees I still shower, wash the basics and out 🤣
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looking at it though that east side might be a littler better at generating then the west side *besides the low angle) ? -
 
isie said:
looking at it though that east side might be a littler better at generating then the west side *besides the low angle) ? -
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More north facing, west side is south facing.

Agree, put more panels on east side seeing they on 2 different mppts. I thought they were on 1 mppt.
 
So don't want to kick off a debate again but seeing my geyser electricity usage for this year so far is crazy...

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cavedog said:
So don't want to kick off a debate again but seeing my geyser electricity usage for this year so far is crazy...

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Your feb to april was my monthly consumption. Are you guys using the geyser to heat yourselves in winter? Its as if you guys are sleeping in the shower 🤣. I refuse to believe its all coz of colder inlet water. I was flat 200kWh all throughout winter when grid connected with a timer.
 
cavedog said:
So don't want to kick off a debate again but seeing my geyser electricity usage for this year so far is crazy...

View attachment 1933838
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Mine is reporting 498 though only showing from Feb but if I add in the average it would go up to 560, my pool pump is the same over the same time period.
 
denmendez65 said:
Your feb to april was my monthly consumption. Are you guys using the geyser to heat yourselves in winter? Its as if you guys are sleeping in the shower . I refuse to believe its all coz of colder inlet water. I was flat 200kWh all throughout winter when grid connected with a timer.
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Summer my heat pump averages 60 units a month, winter it can come to 95
 
Lupus said:
Summer my heat pump averages 60 units a month, winter it can come to 95
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Yeah but your operation is not the same as standard geyser. You heatpump becomes less efficient in winter. His is just straight up element.
 
denmendez65 said:
He has 1 geyser
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Which is on the roof in the elements (rain and wind) set to 70c. IMHO, best strat is to set it to 60c, set a timer to come on 1.5 hours before shower time but turn timer off before shower, then leave it off until 1.5 hours before the next shower.
 
Looking at his numbers he is actually bout right
Geysers are the biggest problems in most houses

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wingnut771 said:
How many kWh per day are you using?
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Total or just the geysers?
average around 17-22kwh a day
5-10Kwh to the Geysers if PV is crap we make due with 1 , if great both to high temp (and on medium days maybe both but lower temps etc) strategy helps lower the grid usage where posible.
wingnut771 said:
On top of the flat roof or on the side wall?
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Flat roof , 1 is vertical the other is horizontal - so the horizontal at least get a little protection on 1 side from a parapet (but its barely 1/2 way up the height of the geyser) while the other get nothing
 
isie said:
Total or just the geysers?
average around 17-22kwh a day
5-10Kwh to the Geysers if PV is crap we make due with 1 , if great both to high temp (and on medium days maybe both but lower temps etc) strategy helps lower the grid usage where posible.

Flat roof , 1 is vertical the other is horizontal - so the horizontal at least get a little protection on 1 side from a parapet (but its barely 1/2 way up the height of the geyser) while the other get nothing
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Just the geysers.
 
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