Budget temporary power as a line for each phase of the subdivision, not as one lump under general conditions. A subdivision changes character several times: earthwork and utilities, then the sales center and models, then vertical construction, then finish-out. The load, the run time and the party responsible for the bill change at each step. A single number built for the average month will be too low in the busy phases and wasteful in the quiet ones.
Temporary electrical setups also carry safety rules, such as the ground-fault protection requirements for temporary receptacles in OSHA 1926.404. Those requirements affect the distribution gear rented alongside the generator, so they belong in the budget too. The sections below cover where the money goes and where a developer has room to adjust it.
The inputs that move the bill
Rental cost on a diesel generator follows a short list of inputs, and each one can be planned. Size comes first: a unit matched to a written load list costs less than one sized by guesswork, and the construction generator sizing guide shows how to build that list. Duration comes second, and on a subdivision it often runs in months, so the rate structure matters more than it would on a one-week job. Fuel is third, and the fuel consumption chart helps convert a load into gallons so the fuel line is not a surprise. Delivery, distribution gear and setup make up the fourth, and they repeat each time a unit moves between phases.
Stag bills on single, double or triple shift, so how many hours the site runs each day affects the rate. A site that only powers a sales trailer during business hours is a different budget from one that runs dewatering pumps around the clock. The rental pricing guide explains the pricing factors in more detail.
What each phase asks of the budget
The table below pairs each subdivision phase with its typical power demand and the budget decision that follows from it. Treat the entries as planning prompts, since each site’s load list decides the details. The point is that the line item changes by phase, so the estimate should too.
| Phase | Typical power demand | Budget decision |
|---|---|---|
| Earthwork and utilities | Site trailer, lighting, dewatering pumps, utility testing | Decide whether pumps need around-the-clock service |
| Sales center and models | Lighting, HVAC, office equipment, signage | Weigh a small unit against waiting for permanent service |
| Vertical construction | Saws, compressors, lighting across many lots | Choose between a central unit with distribution and several small ones |
| Finish-out and punch list | HVAC start-up, appliance testing, final lighting | Plan the exit date so the rental stops when the work does |
Who pays when lots change hands
A subdivision adds a budgeting wrinkle that a single building does not have: the developer and the builders are often different companies. The developer may carry the power for roads and utilities, while each builder carries it for the homes it constructs. If the contract is silent, a unit running on a shared lot can end up with no one clearly responsible for it. Settle that split before the first rental starts, and write the answer into the lot sale or builder agreement so the bill has an owner.
A central generator feeding several lots through distribution gear can cost less than a unit on every lot, but only if the shared arrangement is set up cleanly. Our power distribution page covers the equipment that makes that kind of setup possible. Whether it fits your site depends on lot spacing and how many builders are working at once.
Lines to put in the estimate
A budget holds up better when each line has a name and an owner. The list below is a starting set for a subdivision estimate. Adjust it to your site, and drop any line that does not apply.
- Generator rental by phase, with start and end dates
- Fuel, based on the load list and shift pattern
- Delivery and pickup for each move between phases
- Distribution gear and cabling, including ground-fault protection
- Refueling service or a larger tank where site access is limited
- A contingency line for schedule slips that extend a phase
The last line deserves attention because subdivision schedules move with weather and utility timing. Our guides to how weather and season change site power needs and why utility hookups lag site work explain those two causes of slips. A rental that runs past its planned end date is the most common reason a power budget overruns, and a contingency line makes that visible before it happens. For extended-runtime options, see our page on rental fuel tanks.
Talking to a rental team before the budget is final
A short call with the rental team before the estimate is locked can save a revision later. Bring the phase plan, the expected load for each phase and the start and end dates, and ask what size and shift pattern they would stage. Stag Power Rentals supplies diesel generators from 20 kW to 2000 kW out of its Dickinson, TX yard, and the team can help turn a phase plan into a rental plan. For the wider picture of how we support builds, see our construction power overview, and when you have numbers, request a quote.
Frequently Asked Questions
Should a subdivision budget temporary power as one line or by phase?
By phase is usually more accurate. Load, run time and responsibility change between earthwork, models, vertical construction and finish-out, so one lump tends to be wrong in every phase. A line per phase also makes it easier to see where a schedule slip adds cost.
What drives the cost of a generator rental on a subdivision?
Unit size, rental duration, shift pattern, fuel, delivery and distribution gear. Each can be estimated in advance from a load list and a schedule. The rental pricing guide covers the factors in more detail.
Is one central generator cheaper than a unit on every lot?
It can be, when lots sit close enough for distribution gear to connect them and the builders agree on the arrangement. Where lots are spread out or work is not synchronized, separate units may fit better. Compare both options against your lot layout before deciding.
Who is responsible for the power bill, the developer or the builder?
The contracts decide. Developers often carry power for roads and utilities, and builders carry it for their own homes, but a shared unit needs a written answer. Put the split into the lot sale or builder agreement before rentals begin.
How much contingency should the budget include?
The right amount depends on how exposed your schedule is to weather and utility timing. Review past phases for how often they ran long, and size the line to that history rather than a fixed percentage.
What should I send with a quote request?
Send the phase plan, the expected load and voltage for each phase, start and end dates, and the shift pattern. If you know the site layout, include lot spacing. That lets the rental team size and stage equipment in one pass.