Part of our series “What is the best strategy to maximise the Return on Investment for your battery?”
In which we also answer the question “Should I Discharge during peak only, or peak and shoulder“ and “Is it worth discharging during off-peak periods in order to maximise solar soak-up?”
Now if you’ve taken the early adopter step of adding battery storage to your PV system, you might be wondering how to make the most of your battery in minimising your electricity bill. In other articles we’ve examined the best strategies for maximising Return on Investment in your battery. We’ve seen:
- You can’t make enough money from a battery alone to justify its cost – you need to couple it with a PV system which does most of the heavy lifting in terms of ROI.
- Smaller is better when it comes to ROI – as the battery acts to drag down the ROI of a PV system, so a smaller battery drags down the ROI less
One common idea put forward as a way of improving battery ROI is to double the amount of work the battery does each day, by pre-charging it from off-peak grid power to service your morning loads, before charging it again (this time from excess solar energy) so it can service your evening loads. By working it twice as hard, the theory is you will generate extra revenue (in the form of bill reduction) each year, so the battery should pay for itself sooner. But how does the theory stack up in reality? Let’s use PVsell to find out.