Real Savings with BillBuster: €0.069/kWh Compared to €0.105/kWh
July 29, 2025

Real Savings with BillBuster: €0.069/kWh Compared to €0.105/kWh

At BillBuster, we don’t just talk about energy savings — we deliver them. And we want to show you what that looks like in practice.

Below is an excerpt from a real electricity invoice for June 2025, generated using dynamic pricing and BillBuster’s automation engine. Thanks to intelligent scheduling of battery use and smart load shifting, the average price of electricity dropped significantly.

Before BillBuster

Most households in Slovenia with fixed tariffs pay around €0.105 per kWh (10.5 cents) for electricity. That means for 879 kWh of monthly usage, the bill would typically be:

879 kWh × €0.105 = €92.30 (energy cost only)

With BillBuster Optimizations

By optimizing battery usage based on day-ahead prices, and deferring non-essential loads to cheaper hours, BillBuster achieved:

Average price: €0.06977 per kWh

Invoice energy line item: €61.33 for 879 kWh

That’s a 33% reduction in electricity costs!

How Did BillBuster Achieve This?

  • Day-ahead price forecasts: We download official dynamic pricing daily and predict your consumption curve.
  • Battery optimization: We charge your battery when prices are low, and discharge when they’re high.
  • Deferred load control: We shift flexible loads like heating and EV charging to cheaper hours.
  • Secure local control: Your Home Assistant plugin handles all device interactions without exposing your home to the internet.

What’s Next?

We’re expanding support to gas and heating, offering even more opportunities to cut your utility bills. Whether you’re running a solar-battery system or just want to get smarter about energy use, BillBuster gives you visibility, control, and real savings.


Join the beta and start optimizing your energy costs today: www.billbuster.ai (please subscribe to our newsletter on the front page and we’ll notify you how to proceed)