Tony Swash

Hi All,
I have two 7.4 kWh Solar MD lithium batteries installed with a 5kVa  Axpert MKS.  At the weekend the inverter is now known as Axpert Ai in my control panel.
Its was a bit eerie at first as the inverters settings have changed and it is making its own decisions and is dynamic. Its early days yet but the first tests seem to show an improvement in system efficiency.
I can chat online at any time to the Solar MD guys from the control panel and I will publish some results.
Well done Kayloyan and his team.

Thanks,
 
 

Hi All,
I was always keen on heating the water in my 150l geyser so I installed a 2kw element 220 vac and had it switch on via a Geyserwise controller from 6am - 8am.
Result- Disaster. The current drain on the batteries was so high that after running the house all night, once the geyser came on the inverter tripped due to low voltage. I spoke to the guys at Geyserwise and they sent me a 400 watt PTC based 48 vdc  element. This gets turned on at 9 am and merrily runs until 5 pm using the excess power from my panels. 
At the end of the day the geyser (inside and lagged) reaches a temperature of 56 degrees C. I find that this is sitting at 50 C in the morning and easily provides a bath and a shower. I have forgotten it on a few occasions and the temp was 72 the next day. The PTC can run dry if the geyser has no water. I use the geyserwise set to 52 degrees so if the weather is cold it kicks in the 2000 watt PTC element (220 VAC ) and runs for about 15 mins.

My sentiments exactly. For some guest houses it works great as it is so simple. Even if the geyser runs dry the PTC will not burn out. I have a 220v PTC element as back up just in case but I have not switched it on in a year. This picture shows the 400 watt element next to a standard element.
 

Hi,
I run 4 mm cables to the geyser, about 6 meters.
The water after shower/bath is normally 34 37 degrees so its not coming from 20 degrees up to 52.
Normally we have used the dishwasher, iron etc by 13h00 then we have excess power any way. I run it directly from the batteries.
I turn it on at 9 am and off at 5pm
Been running for a year now. not used Eskom once
 

Hi All,
I was always keen on heating the water in my 150l geyser so I installed a 2kw element 220 vac and had it switch on via a Geyserwise controller from 6am - 8am.
Result- Disaster. The current drain on the batteries was so high that after running the house all night, once the geyser came on the inverter tripped due to low voltage. I spoke to the guys at Geyserwise and they sent me a 400 watt PTC based 48 vdc  element. This gets turned on at 9 am and merrily runs until 5 pm using the excess power from my panels. 
At the end of the day the geyser (inside and lagged) reaches a temperature of 56 degrees C. I find that this is sitting at 50 C in the morning and easily provides a bath and a shower. I have forgotten it on a few occasions and the temp was 72 the next day. The PTC can run dry if the geyser has no water. I use the geyserwise set to 52 degrees so if the weather is cold it kicks in the 2000 watt PTC element (220 VAC ) and runs for about 15 mins.