Find the home battery that fits your situation
Enter a few figures from your energy statement and receive a first indication straight away. You usually find these figures on your annual statement, in your energy supplier’s app or in the app of your solar panels.
What you need
- Your annual electricity consumption — usually on your annual statement or energy app.
- Your annual solar generation — in the app of your solar panels or inverter.
- Your annual electricity exported to the grid — on your annual statement or energy app.
- Your current tariffs — optional; without your own tariffs we use our current standard values.
Don’t have all the figures at hand? Use the best estimate you can. FlexxWatt always checks your data before issuing final advice.
Your energy profile
Use English notation: comma as thousands separator, point as decimal (for example 3,500 or 0.32).
Please enter your annual electricity consumption (for example 3,500).
How it works
1. Find your figures
Your annual statement, your energy supplier’s app or the app of your solar panels.
2. Fill them in
Three values at most: consumption, generation and electricity exported.
3. View the outcome
You immediately see an indication of your savings and a fitting battery.
4. Have it reviewed
A specialist checks your data and discusses the options with you.
With and without a smart home battery
Without a smart home battery
- Solar panels mainly produce during the day, when consumption is low.
- A large share of the surplus goes to the grid.
- The feed-in tariff can be limited and feed-in charges may apply.
- In the evening electricity is bought from the grid again.
- There is little to no automatic control.
With the smart energy solution from FlexxWatt
- Solar electricity powers the home first, then the battery.
- At low or negative prices the battery can charge from the grid at favourable rates.
- At high prices expensive grid imports are reduced.
- The energy management system automatically picks the right moment.
Frequently asked questions
Why does the outcome differ from other calculators?
We only calculate the part of your electricity costs you can influence. Fixed grid operator and standing charges and gas are excluded, because a battery has no effect on them.
What if I don’t have all the figures?
Use the best estimate you can. We always check your data before you receive final advice.
Is the outcome guaranteed?
No. It is an indication based on average annual figures. Your actual consumption profile across the day determines the final result.