Demand management
On most commercial tariffs, a large share of the bill is set by peak demand rather than by consumption. Storage is how that peak gets flattened.
Commercial and industrial electricity bills usually have two main components. Consumption is what you used, measured in kWh. Demand is how hard you pulled at your worst moment, measured in kW and typically assessed over a short interval — often fifteen minutes.
That means a single compressor start, a shift changeover or an EV charging session can set a demand charge that applies for the whole billing period, regardless of how careful consumption was for the rest of the month.
Battery storage addresses this directly. The system discharges during the peak so the site draws less from the grid, and recharges when demand is low. The site's measured peak falls, and so does the demand component of the bill.
The mechanisms
The battery covers short high-demand periods so the grid never sees them, lowering the demand figure the tariff is based on.
Energy is drawn and stored during cheap or off-peak periods and used during expensive ones, lowering the consumption cost.
Where a programme exists, the site can reduce grid draw on request without interrupting operations, because the battery carries the load.
That is the single input that tells us whether peak shaving pays at your site, and what size system it takes.
Questions answered
Peak shaving means using stored energy to cover short periods of high demand so the site draws less from the grid at its peak. Because commercial tariffs often charge on the highest demand recorded in a billing period, reducing that peak reduces the charge.
Load shifting means moving energy use in time — charging a battery when electricity is cheap or plentiful and discharging it when it is expensive — without changing when the work actually happens.
Demand charges are billed on the highest rate of power draw in a period, not on total consumption. Demand charge reduction means lowering that measured peak, usually by discharging a battery during the periods that would otherwise set it.
Yes, where the site's load profile has peaks that a battery can cover. The size of the saving depends on the tariff structure and how spiky the profile is, which is why interval data is the starting point rather than a rule of thumb.
Get in touch
Tell us the site, the load and the runtime you need. Our Austin engineering team comes back with a configuration, a runtime estimate and a price.
+1 512-316-7347
info@pulsar.industries
WhatsApp +1 512-585-8293
