ROI Calculator

Stop Guessing. Start Calculating Your Energy Independence.

European electricity prices are unpredictable. Use our real-time calculator to discover exactly how much you can save annually.

Tailored to your location

Real-time tariffs

100% Transparent calculations

Balcony Solar PV ROI Calculator
€0.35
Estimated Annual Savings
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Payback Period
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Get My System & Start Saving

The Grid Takes Your Profit

❌ Sell daytime solar to the grid for pennies. 

❌ Buy it back at peak evening rates. 

📉 Result: ~30% Self-Consumption (Low ROI)

Lock In Your Savings

✅ Automatically store 100% of daytime solar. 

✅ Power your evening appliances for free. 

📈 Result: >80% Zelfconsumptie (Maximized ROI)

09:00 - 15:00 

Capture & Power

Power your home essentials instantly. 

 

Send excess energy directly to the battery.

15:00 - 18:00

Store for the Evening

Battery hits 100% capacity.

 

 Free energy safely locked in.

 

18:00 - 23:00

Bypass Expensive Rates

Auto-switch to battery as grid prices surge.

 

Run evening appliances for €0.

Turn your balcony into a 24/7 personal power plant.

Shop your Plan

BEST FOR WHOLE HOME

The Ultimate Sonnex Microgrid

100% native compatibility. Control your entire home's energy and maximize battery life with just one App. 

42 Reviews

€100.000,00

10-Year Warranty + Free Shipping

BEST FOR BALCONY & OUTDOORS

The Anker Balcony & Go Bundle

True plug & play. Set it up in 5 minutes without tools, or take it off-grid for weekend camping.

122 Reviews

€0,00

Zero Installation + Free Shipping

ULTIMATE PERFORMANCE

Premium Crossover Energy Kit

The ultimate arbitrage combo: Sonnex's high-yield solar panels powered by Anker's smart battery algorithms.

54 Reviews

€0,00

Maximum ROI + Free Shipping

Shop Individual Components

Need an upgrade or a specific part? Build and expand your microgrid on your own terms.

Smart app control & durable LiFePO4 cells.

42 Reviews

€0,00

Industry-leading conversion rate.

42 Reviews

€0,00

Sonnex Solar Hub - H1600M

Smart app control & durable LiFePO4 cells.

42 Reviews

€100.000,00

Anker SOLIX PS200 Panel

Smart app control & durable LiFePO4 cells.

42 Reviews

€0,00

Your Balcony. Your Energy. Zero Hassle.

Designed for Dutch apartments. No electricians, no drilling, and completely landlord-friendly.

Do I need VvE (Homeowners Association) approval to install this?

In most cases, no. Our Sonnex balcony systems are designed as temporary, plug-and-play appliances. Because they require zero drilling and do not alter the building's structure, they generally bypass complex VvE regulations. However, we always recommend double-checking your specific building rules.

I am renting my apartment. Can I take it with me if I move?

Absolutely. The system is 100% landlord-friendly. There is no permanent installation or hardwiring. If you move to a new apartment, you can unmount the panels and pack up the battery in under 15 minutes. It’s an investment that moves with you.

The Netherlands gets a lot of rain and wind. Is it safe and efficient?

Yes. Our solar panels feature advanced low-light technology to ensure steady energy generation even on cloudy Dutch days. Furthermore, the customized mounting brackets are rigorously tested to withstand strong coastal winds, keeping your system locked securely to your balcony railing.

Will it work with my Dutch smart meter (slimme meter)?

Seamlessly. Simply plug the system into any standard European wall socket (Schuko). Your home network will instantly prioritize the free solar energy over grid electricity. Your smart meter will automatically reflect the drop in grid consumption.