Easily calculate when LED lighting, solar panels or a home battery pay for themselves. Enter your situation and see the break-even point live.
Indicative payback periods based on average assumptions. Calculate your own situation once you're logged in.
Adjust the sliders in the calculator and both the table and the chart update instantly.
By reducing your energy consumption or generating your own power, you structurally cut your energy bill. The higher energy prices rise, the faster your investment pays back.
Traditional incandescent and fluorescent lighting consumes up to 5× more power than modern LED. Switching cuts your consumption immediately, with no change in behaviour required. The investment typically pays back within 1 to 2 years.
Solar panels generate free electricity. Energy you consume yourself doesn't need to be purchased from the grid. The more you self-consume, the more you save. An EMS system helps you maximise self-consumption automatically.
A home battery stores solar energy generated during the day for use in the evening. This significantly increases your self-consumption and reduces reliance on more expensive grid electricity.
Energy prices have risen sharply in recent years and that trend is expected to continue. Every increase in the price per kWh means your installation delivers higher annual savings - and pays back sooner. Investing now means benefiting the most.
In the calculator you can adjust the electricity rate yourself to see the effect on your payback period. Try it: slide the price up and watch the break-even point shift left.
The payback period is the number of years it takes for your cumulative energy savings to equal the initial investment. After that point, the installation generates pure profit.
The calculation is indicative and based on the values you enter. In practice, seasonal variation, shading, usage patterns and grid tariffs can affect the outcome. The results give a reliable benchmark for comparing technologies.
An Energy Management System (EMS) automatically manages the energy flows in your home or building. For example, it ensures your battery is charged with solar energy and discharged when grid electricity is most expensive - maximising self-consumption and savings.
Yes. LED lighting, solar panels and a home battery work excellently together. In Solveback you can calculate each module separately. Combining all three delivers the greatest total saving.
With a free account you can save your calculations, revisit previously generated PDF reports and share results with clients or colleagues. All settings are saved so you can pick up right where you left off.
After filling in the calculator, scroll to the bottom of the page and choose “Generate PDF report”. Enter the recipient's name and an optional note. Solveback generates a professional PDF report with an AI-written summary addressed to the client.
Create a free account and access your personal workspace. Save calculations, review past reports and keep everything organised.
Create a free account and see within a minute when your investment pays for itself.