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Your battery should work around your life.

If your battery charges at the wrong time, runs down too early or needs constant changes, Sundime may help.

Tell us about your battery Will it work at my home?

Works with GoodWe ESA batteries today. Every brand is welcome to register.

Does any of this sound familiar?

Cheap power

It misses the cheap or free hours

Your plan has cheap or free hours. Your battery may not use them.

Evening power

It runs down too early

It empties before the expensive hours.

Daily effort

You keep changing the settings

Solar, weather, prices and routines change. A fixed plan falls behind.

Meet Sundime

A small Sundime Gateway at home builds your battery a plan for the day.

1 · Looks ahead

Understands the day

Your electricity prices, expected solar and normal home use.

2 · Makes a plan

Chooses when to use the battery

When to charge, hold energy back, or use what's stored.

3 · Keeps it simple

Shows you what happened

A clear view in the app. No spreadsheets.

Smarter planning for a working battery For a battery that works but could make better use of your solar and electricity plan. Not a repair service.

More battery brands

Works with GoodWe ESA batteries today. More brands to follow. Tell us what you have, even if it's not supported yet.

Not sure whether your home will work? Tell us what you know and we'll check the setup with you. See how the check works.

How we report savings

Sundime doesn't promise a particular saving. It uses measured data from your home to show what happened.

Common battery questions

Battery timing

Problem—or a plan that no longer fits?

Does the same thing happen at the same time each day?

 GoodWe pilot

Battery waiting instead of charging?

Everyday reasons a working GoodWe battery may wait.

 Grid power

Still buying power with charge left?

Battery percentage is only part of the story.

Want your battery to work smarter?

Tell us which battery you have. We'll be in touch when there's a place.

Register my interest