Putting It All Together: Your Backup Power Sizing Plan
Last verified: September 2026
The capstone that ties the whole series into one action plan: list it, read it, add it up, choose your scope and gear, leave a margin, and plan how long. From a blank page to a number you trust. Rather talk it through? My number is (330) 200-8042.
Your Whole Sizing Plan, at a Glance
This is the capstone that ties the whole series together. The journey, in order: make your must-run list, read the nameplates, sort motors from steady loads, add running watts plus the single biggest surge, decide essentials or whole-home, pick the equipment and hookup, add a margin, plan how long, handle the special cases like the well pump, and get a pro load calculation if the job is big or wired-in. This guide is the hub — it points to the deeper guide for each step — with a printable page-by-page version up top.
Common Questions
1 Where do I start with sizing backup power?
With your must-run list — what has to stay on in an outage, sorted into must, want, and skip. Everything else in the plan builds on it, so it's always the first step.
2 What's the core sizing arithmetic, in one line?
Add the running watts of everything on at once, add the single biggest motor's surge on top, then add a comfortable margin. That's your shopping number — and you add only the biggest surge because motors don't all start at once.
3 How is a rural plan different from a town plan?
A rural plan centers on the well pump — a big 240-volt surge and the top of the list — and plans for a longer outage with stored water. A town plan is usually lighter, with the fridge or a window air conditioner as the biggest surge.
4 Do I need a professional, or can I size it myself?
Size it yourself for a few plug-in essentials. Get a licensed electrician's load calculation for whole-home coverage, a standby unit, or hardwired 240-volt loads like a well pump — or when your math sits near a line.
5 Where should I keep my finished plan?
Write it down — your list, nameplate photos, running total and biggest surge, chosen unit, and hookup — and keep it with your home papers or on your phone, with a copy near the generator or panel. Revisit it when something big changes.
6 This still feels like a lot — can Bill just help?
Yes. We build your plan together, one step at a time, at your pace. Bill helps with the list, the nameplates, the arithmetic, and the choices, then coordinates a licensed electrician for any panel or 240-volt work. Nobody has to memorize this.
Would You Rather I Just Help?
You've seen the whole journey now — and you don't have to walk it alone. I'll help you build the must-run list, read the nameplates, do the arithmetic, choose the equipment, and line up a licensed electrician for anything wired-in, with nothing to sell you. $99 flat for a visit, 30-day come-back-free.
Would you rather I just do this for you?
No shame in it — plenty of folks would rather hand it off, and that's what I'm here for. I'll come to your home, set it up right, and make sure it's working before I leave. Flat $99 per visit — no jargon, no upsell, and every visit is 30-day come-back-free.
Not a hardware job? I can often fix it remotely for $49 — a secure screen-share, up to 2 hours, that you watch the whole time and can end whenever (included free for $39/mo Support Plan members, and it counts toward the $99 if it turns out I need to come out).