Gen3 5kW Hybrid - Very High Temps (77c +)

8 comments started 2023-07-28 last 2023-07-29
GivEnergy ProductsHybrid
E
#1 Edward

Hi,

My 5kW Gen3 has just been commisioned and is currently calibrating the batteries.

It's in a large plant room that has no windows but is well ventilated - ambient no more than 22c.

I've seen temps over 77c - is this normal? It's seems very high to me.

#2 dbt85

Is it just mounted to the wall with plenty of room above, or is it close to the ceiling or a shelf or something?

E
#3 Edward

dbt85 Plenty of clearance all around, room approx. 8 foot tall.

J
#4 Jellybaby

Is there any air circulation around at all? If not do you have any sockets for like some usb fans you can plonk on top to draw air up and over unit, I have found this helps temps immensly.

I had to do it for my Virgin Media Superhub, stuck an old 80mm USB AC Infinity fan on there at lowest speed and now its barely warm.

I am thinking about doing the same for my AIO, stick a double 120mm case fan on top to get some air circulating.

T
#5 Tim

Edward That is high, but I expect it's within the spec that Givenergy expects. I'm not sure of the gen3 but the gen1 is said to be OK with ambient up to 55°C. However, high reported temperatures is the reason why many of us have added forced cooling to the passive heatsink fins. My dual HY5s are in the old airing cupboard and I have a pair of 12V PC fans on each inverter forcing air over the fins when inverter temperatures reach 40°C and an extract fan to remove warm air above the inverters when they reach 45°C. As a result, the ambient never exceeds 35°C. I also dial down the charge rate as the solar harvesting days are long enough to guarantee the battery will charge no matter how quickly it gets charged.

If the temperature wasn't available on the portal, I'd probably never think about it. Battery temperature is also an issue as it is measured at the BMS and adjacent to the cells. Under heavy load, the BMS temperature can reach quite high values, but there's nothing that can be done really about that; there's no practical means of cooling the BMS.

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#6 Edward

I've some 80mm fans due from Amazon today - hopefully they will keep the inverter a lot cooler.

It would be interesting to know what temps other ownera are seeing from a 5kW Gen3 Hybrid.

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#7 Northwarks

Here’s mine since install date, huge peak was commissioning and dumping x2 9.5kwh batteries. Sits on the wall in the garage.

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#8 Edward

Northwarks Thanks - good to see mines not unusually hot.

I've just had 2 sets of these 80mm fans delivered:
https://www.amazon.co.uk/dp/B09QHXW52Y

They fit snuggly under the heat sinks, I'll control through home assistant and a smart plug.