NEXEN GUIDE / REVIEWED 23 AUGUST 2026
Why interval data comes before a commercial solar or BESS claim
A responsible C&I feasibility screen starts with when energy and demand occur.
Bills hide the load shape
Two sites with the same quarterly bill can have completely different daytime demand, peaks, shutdown periods and export risk.
Demand charges change the model
A battery can reduce a demand charge only if the peak is predictable, controllable and inside the relevant billing window.
The first useful dataset
Provide at least 12 months of interval data where available, recent bills, operating hours, planned loads and known network constraints. Nexen then separates solar value, demand value, resilience and finance assumptions.