What happens when the clocks change affecting my home batteries? - Energy Storage

RE: What happens when the clocks change affecting my home batteries?

AgentGeorge — Sun, 05 Apr 2026 10:22:22 +0000

@majordennisbloodnok

i was ferkling in the growatt App as i recalled i altered the inverter time differently last change, and eventually found the settings page below

To get the screen below, start on plant screen, tap on the address of the plant at the top

The Time Zone is set to +1, its a quick change to do, don’t need the password

Make sure the time is set correctly to GMT with time zone 0 before altering it to +1

14770

RE: What happens when the clocks change affecting my home batteries?

Majordennisbloodnok — Mon, 30 Mar 2026 21:39:54 +0000

@chandykris, the use case is simple; Growatt is decent enough kit but the app and web portal are dreadful. Local management of the inverter allows the hardware to take its proper place at the heart of a renewable energy smart home and Home Assistant is a readily available tool to do it.

@agentgeorge, how easy it is to implement HA depends on a couple of choices as to how you do it and your appetite for a bit of tinkering. HA itself can be easy to get started with, but getting the Growatt inverter connected is a step up. It’s eminently possible - I’ve done it and written about it on this forum - but it’s not plug and play.

If the only problem needing to be solved is daylight savings, HA is overkill. However, if you start using HA for other reasons and do your scheduling there rather than in the Shine app, the daylight savings issue will cease as an incidental benefit since HA handles that kind of stuff properly.

RE: What happens when the clocks change affecting my home batteries?

ChandyKris — Mon, 30 Mar 2026 16:28:39 +0000

@majordennisbloodnok Haven't dabbled with HA yet. But depending on the usecase, could be a summer project in the making!

RE: What happens when the clocks change affecting my home batteries?

AgentGeorge — Mon, 30 Mar 2026 15:56:20 +0000

@majordennisbloodnok i dont, i was looking at doing it, but im in middle of renovations and need to build the new staircase and batton snd insulate all the exterior walls to reduce heat loss value

is it an easy installation and setup process, on a pc, or raspberrypi?

RE: What happens when the clocks change affecting my home batteries?

Majordennisbloodnok — Mon, 30 Mar 2026 14:54:36 +0000

@agentgeorge, @chandykris, do either of you run Home Assistant?

RE: What happens when the clocks change affecting my home batteries?

ChandyKris — Sun, 29 Mar 2026 19:46:27 +0000

@agentgeorge We have the 6.5 kWh GBLI 6532 model, so it isn't the modular stackable option like the APX or AXE models. This model was going out of production, so our installer sourced it from somewhere for a reasonable price. But he did mention that the AXE battery packs can be added to the existing 13kWh bank as addon if needed in the future.

The process looked straightforward, but fitting the battery on the garage wall and getting it up and running is way beyond my DIY abilities! But the stackable ones look easy and can see it work for a competent DIYer.

RE: What happens when the clocks change affecting my home batteries?

AgentGeorge — Sun, 29 Mar 2026 18:29:57 +0000

@chandykris you mentioned doubling the capacity

i looked at that and it appeared as simple as getting another 5kW brick and plugging it on top, first taking account of the load balance between the 2 batteries.

Did you source your own battery and install it, id like to do the job myself as it looks ok for a DIY electrical bod like me

RE: What happens when the clocks change affecting my home batteries?

AgentGeorge — Sun, 29 Mar 2026 18:27:11 +0000

@editor its not the battery that has the issue, its the growatt 5000 battery charger/inverter.

it is internet connected but needs a prompt to change to BST.

ill call the installers tomorrow as they have installed many systems and likely know it better than us mortals

i had an issue with an OTA update to the inverter last year that stopped the wifi dongle working.if they'd told me it was that dodgy id have run a network point to the inverter.

RE: What happens when the clocks change affecting my home batteries?

ChandyKris — Sun, 29 Mar 2026 16:12:47 +0000

@editor The Shine app is a bit basic and has this issue with time when clock changes. Other than that, it's a pretty solid product. Even the roundtrip efficiency including the standalone consumption is decent. In peak winter, we operate in the 10% to 100% range, so it charges about 11.7 kWh and discharges back about 10.7 kWh for the house load. Expansion was also pretty easy when we doubled the capacity.

We have an AC coupled system, so have a Solax solar inverter, and that seems to automatically set the correct time in the charts after clock changes.

RE: What happens when the clocks change affecting my home batteries?

Mars — Sun, 29 Mar 2026 14:16:26 +0000

Really surprised that Internet connected devices don't just do this automatically. Not a battery, but we do have a robot vacuum, and it hates daylight savings, so it's a manual adjustment to schedules today. Thankfully everything else in our house just switches over, but so surprised that batteries, that avail of time of use tariffs, don't do this automatically.