Find the right IPS, battery and solar size for your home
Add what you use, pick a backup time, get the right size — in minutes. No electrical knowledge needed.
- 1
- 2
- 3
- What do you use at home?
What do you use at home?
Pick your appliances — we'll fill in typical power for each. You can adjust everything later.
Quick start templates
Popular
Your appliances
No appliances yet
Add a few appliances above — or use a template to get started faster.
Total load
0 W
Daily energy
0 Wh
How it works
Add your appliances
Pick from common devices like fans, lights, TV, fridge, router and CCTV — or add your own.
Choose backup time
Tell us how long things should run when the electricity goes out.
Get your recommendation
Instantly see the battery, IPS/inverter and solar size that fits your home.
Frequently asked questions
Do I need to know anything about electricity?
No. Add the appliances you use, estimate how long they run, and choose your backup time. The calculator handles all the math.
Are the results guaranteed?
No — these are estimates. Real usage depends on your appliance ratings, battery condition, inverter quality, temperature and wiring. Treat the recommendation as a starting point.
Is my data saved or shared?
Nothing is saved on any server. The calculation happens in your browser, and if you share a link, the appliances are encoded inside the link itself.
Can I use this on my phone?
Yes — this tool is designed for mobile first, and it works offline once you've opened it once.