Powering a shoot where there’s no power

For years the first question on any location scout was some version of where do we plug in? Not what the light does at four o’clock, not where the traffic noise comes from — where’s the outlet, whose is it, and will someone let us run a stinger to it.

That question shapes more of a shoot than people admit. It quietly rules out the good corner of the park. It means asking a business owner for a favour before you’ve asked for anything else. It puts a cable across a public sidewalk, which means mats, which means someone watching the mats.

The alternative used to be a generator, and a generator brings its own tax: noise your sound department will hate you for, fumes, fuel, and a machine you have to place far enough away to be useless.

What’s on the cart now

A DJI Power 2000 rides on the production cart alongside the lighting cases. It’s a lithium ferrophosphate battery with a 2,048Wh capacity and a continuous 3,000W output, and it weighs a little under fifty pounds. Four AC outlets, four USB-C, four USB-A.

The two numbers do different jobs and people conflate them constantly. Watts is what you can run. Watt-hours is how long you can run it. A 3,000W ceiling means almost nothing in a lighting package is going to trip it. The 2,048Wh is the number that actually constrains your day.

Doing the arithmetic before you get there

The maths is unglamorous and worth doing on the drive. Divide capacity by draw and you get hours.

Run a 1200-watt-class fixture flat out and 2,048Wh gives you somewhere under an hour and three quarters. That sounds alarming until you remember that almost nothing runs at full output for its entire call. Interviews are a few minutes of roll inside twenty minutes of setup, reset, and conversation. Key lights get dimmed to taste, and the taste is rarely 100%. A day that looks like six hours of lighting on paper is usually closer to ninety minutes of actual draw.

The way I budget it:

• Add up worst-case draw for everything that will be on at once, not everything in the case.
• Estimate real on-time, not call time. Be honest about how much of the day the key is actually lit.
• Halve your dimmer assumption. If you plan to sit at 50%, budget 70% and be pleasantly surprised.
• Keep a reserve. Never plan to arrive at zero. The last twenty percent is your insurance against a location running long.

If the numbers come out tight, the fix usually isn’t more battery. It’s a smaller fixture closer to the subject, or bounce instead of raw output — which is often the better-looking answer regardless.

What it actually changed

Two things, and neither was the one I expected.

The first is where we can put the camera. On the Colorado Connector campaign we filmed in twelve communities along the Front Range, and the right frame was routinely nowhere near an outlet — the middle of a plaza, a park lawn, a spot on a brick street chosen because of what was behind it. With power on the cart, the location decision goes back to being a visual decision.

The second is how we’re received. Not asking a shop owner to run a cable through their door changes the temperature of the whole interaction. You show up, you shoot, you leave, and nobody had to do you a favour. On a public campaign filmed in a dozen downtowns, that mattered more than any technical spec.

The honest limitations

It is not a generator replacement for every job. A big multi-fixture build with an 18K and a full grip package is still a genset conversation, and pretending otherwise will get someone stranded.

Fifty pounds also has to go somewhere. On a cart with a ramp it’s a non-issue; carrying it up two flights to a rooftop is a different day. And you need a recharge plan — a fast top-up over lunch from a wall outlet, or a second unit, if the schedule runs long.

What it does replace is the most common version of the problem: a modest package, a location without convenient power, and a crew that would rather not spend the morning negotiating for an outlet.