Introduction
Battery storage modelling is one of those phrases that gets used loosely. For some suppliers it means plugging your annual consumption into a spreadsheet and producing a rough payback figure. For us, it means building a half hourly battery simulation that reflects your actual load profile, your specific tariff, and the real dynamics of your site. The difference in output is significant.
What your data tells us
Half-hourly consumption data gives us 17,520 individual data points for a full year. That granularity lets us see not just how much energy your site uses, but when it uses it, how predictable those patterns are, and where the financial leverage points sit. It’s the kind of detail that changes the recommendation significantly compared to working from averages.
Mapping your tariff
Energy bills for commercial and industrial sites are often more complex than a simple unit rate. Capacity charges, distribution use of system charges, transmission charges, and balancing services fees can account for a significant proportion of total cost. Understanding which of these a battery can impact, and by how much, is central to an accurate business case.
Building the simulation
The annual half hourly battery simulation determines when the battery charges and when it discharges, optimised against your specific tariff windows and demand patterns. For sites on time-of-use tariffs, that typically means charging from the grid during cheap overnight windows. For sites with solar, it often means prioritising solar capture and shifting to grid arbitrage when generation is low.
What the model produces
A completed BeBa modelling assessment gives you: a recommended battery size in kWh and kW output; projected annual saving broken down by tariff component; an estimated payback period; a suggested charge schedule optimised for your current tariff; and energy independence, showing how resilient the business is to changes in energy cost factors.
Next steps
If you’re thinking about battery storage or just want to know whether it’s worth thinking about, the right first step is a site assessment. We can model your consumption data and give you an honest view of whether storage makes sense, before any capital is committed.
If you’d like to understand what battery could realistically do for your site, book a free assessment and we’ll give you honest numbers.