Hello From Wiltshire

[pash44]

Good morning

Brand new user - system installed yesterday.

EVO 10 Battery/Inverter (10.24 KwH battery) with 20 x 470 panels

Can't find a manual anywhere for the EVO 10 (apparently the installers' manual is not out yet) so I'm trying to understand what is in the app.

At the moment I am still on a regular tariff but switch is underway to a time-based tariff.

What I want to be able when I am on my new tariff is the following for the winter months. Probably starting in October

(1) between 22.00 to 00.00 and 00.00 to 06.00 Period 1 I will have the cheapest grid price. So I want to force the battery to charge from the grid during this period and not discharge
(2) from 06.00 until 16.00 Period 2 I want to use any solar I can get and not discharge from the battery
(3) between 16.00 and 19.00 Period 3 I want to use any available solar and force discharge from the battery where solar is insufficient to cover house load as this is my peak grid price
(4) 22.00 to 00.00 becomes Period 4

How do I do this in the app? This is what I have gathered so far
Period 1 00.00-06.00
Work Mode - Force Charge
Min SoC on Grid 10%
Max SoC on Grid 100%
Forced discharge cutoff SoC 10%
FDPwr 0.0W

Period 2 06.00-16.00
Work Mode - Self Use
Min SoC on Grid 10%
Max SoC on Grid 10%
Forced discharge cutoff SoC 100%
FDPwr 0.0W

Period 3 16.00-19.00
Work Mode - Force Discharge
Min SoC on Grid 100%
Max SoC on Grid 10%
Forced discharge cutoff SoC 10%
FDPwr 10000.0W

Period 4
As Period 1

Is that correct?

Any advice would be much appreciated.

[Will]

Welcome to the group! The evo is a great looking unit.

[WyndStryke]

I think period 2 and 3 have min soc and max soc the wrong way around.

Code: Select all

Period 2 06.00-16.00
Work Mode - Self Use
Min SoC on Grid 10%
Max SoC on Grid 10%
Forced discharge cutoff SoC 100%
FDPwr 0.0W

Leave max soc at 100%, don't set it to 10%

Force discharge SoC and Force discharge power are irrelevant in this mode and can be ignored.

When this is 10%/100%, it will charge the battery from solar, until it is completely full, and any surplus that can't be used by the house, or stored in the battery, will be exported.

.

Code: Select all

Period 3 16.00-19.00
Work Mode - Force Discharge
Min SoC on Grid 100%
Max SoC on Grid 10%
Forced discharge cutoff SoC 10%
FDPwr 10000.0W

Leave Min Soc at 10% (don't change to 100%)

Leave Max soc at 100% (don't change to 10%)

Set force discharge Soc to your target soc to discharge down to (I typically have this somewhat above the min soc, to leave a buffer so that you don't run out prior to the start of the cheap rate period).

When this is 10%/100%/10%, it will discharge the battery all the way down to the minimum, leaving nothing, and it'll start drawing from the grid to support the household load once it is empty.

But if you were to do 10%/100%/40% instead, it would discharge down to 40%, leaving 30% for later use by the household.


Personally I use 'Feed in first' rather than 'self use', because I have a flat-rate export tariff, therefore want to export any solar directly, without the 10% loss you get from storing it into the battery. However if your export rate is higher in the evening period, then you would want to store it.

[pash44]

Thanks for your reply - that all makes sense to me.