Your solar panels
are earning less
than they should.
Standard contracts pay you a fixed rate for the energy you inject. But the grid doesn't work that way — prices shift every 15 minutes. With 10s, you earn the real-time market price for every kWh you send back. The difference adds up.
8.2%
€274
15 min
8.2%
Three ways your current contract is leaving money on the table
Standard energy contracts were designed around the grid of twenty years ago. ...The market has moved on.
1. Fixed buyback locks in a low rate
Most suppliers pay a flat rate for your injection — often €0.04–0.07/kWh. Meanwhile, the real-time market price spikes to €0.20, €0.40, sometimes higher. You'll never see that money.
2. Day-ahead pricing misses the peaks
Even a dynamic contract only updates hourly, using the previous day's prices. Intra-day spikes — driven by sudden drops in wind or solar across Europe — happen in 15-minute windows. You're too slow to catch them.
3. Prosument tariff eats your gains
In Flanders, the prosument tariff can cost €350–600/year just for having solar panels. That's a network fee you pay regardless — but smart consumption can offset it significantly.
With 10s energy real-time means real-time.
Other suppliers promise dynamic pricing. What they deliver is a list of hourly prices, published the day before. With 10s, your injection is valued at the Elia quarter-hour spot price; the actual market rate at the actual moment your panels produce.
Feature
Standard dynamic
10s Energy
Price update frequency
Injection rate
Negative price windows
Smart consumption via Home Assistant
Prosument offset potential
Gets paid during supply surplus
Every 60 min
Day-ahead average
Averaged out, you miss them
Manual scheduling
Limited
No
Every 15 min
Real-time Elia spot
Captured in full
Automatic, real-time
Smart self-consumption
Yes, earn when the grid is flush
Three steps to start earning more from your solar
Connect your installation
Sign up for 10s Energy and link your solar installation and Home Assistant setup. Compatible with all major inverter brands. No new hardware or electrician required.
Set your smart rules once
Tell Home Assistant which appliances to run automatically — EV, heat pump, boiler, dishwasher. Set your price thresholds. Done. The system manages itself from here.
Watch the savings stack up
Your injection earns real-time market rates. Your big appliances run in cheap windows. Track everything in your 10s dashboard — to the quarter-hour.
Ready to earn more
from your solar?
Join the Early Bird waiting list. You'll get VIP access to the 10s launch tariff before anyone else — and a better rate locked in from day one.
Testimonials
Check out what our BETA users have to say
I've had solar for four years. I had no idea I was leaving this much money on the table. The first quarter on 10s more than covered the prosument tariff.
My EV now charges almost entirely during my solar peak or during negative-price windows. The combination is ridiculous. I genuinely feel like I'm gaming the system.
Set it up on a Saturday morning. Didn't touch it again. I check the dashboard sometimes just because it's satisfying to watch.
Solar injection savings calculator
Indicative estimate only. Based on 2024 Elia CWE annual average pricing data. See full disclaimer below.
⚠ Indicative estimate only. Not a contractual offer. Production estimated at 950 kWh/kWp/year (Belgian average). 10s injection income calculated using 2024 Elia CWE quarter-hour prices, assuming full real-time billing at actual spot rates. Standard buyback benchmark: Belgian market average fixed injection rate 2024 (€0.055/kWh). Actual results depend on your inverter, grid connection, DSO zone, and market conditions at time of use. Past pricing is not a guarantee of future earnings.
A smart supplier that really means it
Everything you need to know about solar injection with 10s
01. Do I need special hardware to connect my solar system?
No additional hardware is required. 10s works through Home Assistant, which connects to your existing inverter, EV charger, heat pump and other devices you already have. If your setup is already on Home Assistant, you're essentially ready to go.
02. How does 10s calculate my injection income?
Every kWh you inject into the grid is billed at the Elia real-time imbalance price for that specific 15-minute window. At the end of each quarter, you receive a detailed breakdown showing exactly which windows your energy was sold into and at what price. No averaging, no surprises.
03. What happens when prices go negative? Do I pay to inject?
Negative prices cut both ways. When prices go negative, consuming electricity earns you money — so your Home Assistant automatically switches on your big appliances during these windows. For injection during negative prices, 10s manages this intelligently so you're never caught out. We'll confirm the exact handling in your contract terms.
04. Does 10s help with the Flanders prosurment tariff?
Yes, indirectly. The prosument tariff is a fixed network cost you pay for having solar panels in Flanders — 10s can't eliminate it. But by maximising your self-consumption (running appliances during your own solar production) and boosting your injection income, 10s helps offset that cost significantly. Many customers find the net effect is positive.
05. Can I switch between the smart tariff and a standard tariff?
Yes. You stay in full control. You can switch appliances between smart (real-time) and standard (dynamic) tariff modes at any time, with a 48-hour notice period. For example, if you need your EV charged by a specific time regardless of price, you can temporarily switch it to a guaranteed charge mode.
06. Does 10s have access to my Home Assistant installation?
No. Your Home Assistant remains entirely under your control. 10s only sends you real-time price signals — your Home Assistant uses those signals to make decisions according to the rules you set. We never control your devices directly.