When is it cheaper to rent a 100kw 150Amp 3ph 480vac Kohler Diesel Generator on the 28-day rate?

From day 26. At that point the week-and-day composition reaches the $36,960 28-day rate, and the price stops climbing for the rest of the cycle.

Break-even duration

Q: When is it cheaper to rent a 100kw 150Amp 3ph 480vac Kohler Diesel Generator by the week than by the day?

From day 7. 7 days at the $1,560 day rate would be $10,920, but the weekly rate caps it at $10,080.

Equipment rents on three rates — a day rate, a week rate and a 28-day rate — and the cheapest one changes as the job runs long. This finds the two days where it changes, on a real listing’s real published rates.

100kw 150Amp 3ph 480vac Kohler Diesel Generator

See the listing →

James Moreda · Generators - Diesel

Day: $1,560
Week: $10,080
28 days: $36,960

Daily stops winning on

day 7

7 days at the day rate would be $10,920. On the week rate it is $10,080.

Weekly stops winning on

day 26

26 days at the day rate would be $40,560. On the 28-day rate it is $36,960.

The working

Whole weeks bill at the week rate; the leftover days bill at the day rate but never add up to more than one extra week; and a whole 28-day cycle never costs more than the 28-day rate. That is the rule, applied one day at a time.

Rental price by duration for 100kw 150Amp 3ph 480vac Kohler Diesel Generator, days 1 to 35
Days	At the day rate	On the ladder	Difference	Rate in play
1	$1,560	$1,560	—	day
2	$3,120	$3,120	—	day
3	$4,680	$4,680	—	day
4	$6,240	$6,240	—	day
5	$7,800	$7,800	—	day
6	$9,360	$9,360	—	day
7	$10,920	$10,080	you save $840	week
8	$12,480	$11,640	you save $840	week
9	$14,040	$13,200	you save $840	week
10	$15,600	$14,760	you save $840	week
11	$17,160	$16,320	you save $840	week
12	$18,720	$17,880	you save $840	week
13	$20,280	$19,440	you save $840	week
14	$21,840	$20,160	you save $1,680	week
15	$23,400	$21,720	you save $1,680	week
16	$24,960	$23,280	you save $1,680	week
17	$26,520	$24,840	you save $1,680	week
18	$28,080	$26,400	you save $1,680	week
19	$29,640	$27,960	you save $1,680	week
20	$31,200	$29,520	you save $1,680	week
21	$32,760	$30,240	you save $2,520	week
22	$34,320	$31,800	you save $2,520	week
23	$35,880	$33,360	you save $2,520	week
24	$37,440	$34,920	you save $2,520	week
25	$39,000	$36,480	you save $2,520	week
26	$40,560	$36,960	you save $3,600	28-day
27	$42,120	$36,960	you save $5,160	28-day
28	$43,680	$36,960	you save $6,720	28-day
29	$45,240	$38,520	you save $6,720	day
30	$46,800	$40,080	you save $6,720	day
31	$48,360	$41,640	you save $6,720	day
32	$49,920	$43,200	you save $6,720	day
33	$51,480	$44,760	you save $6,720	day
34	$53,040	$46,320	you save $6,720	day
35	$54,600	$47,040	you save $7,560	week

Rental rates only. Protection and the marketplace service fee are added on top — see the checkout figure below.

What checkout will quote you

Rental · 26 days: $36,960
Rental protection (RPP): $5,544
Service fee: $3,696
Estimated total: $46,200

Pick a listing

The numbers come from one operator’s published rates, so the tool needs to know whose.

Where these numbers come from

The rates are the operator’s own, read live from their listing. The arithmetic is the same best-price billing engine that produces 2Quip invoices — not a second copy written for this page — run on the industry-standard terms: a 28-day cycle, whole weeks at the week rate, leftover days at the day rate capped at one more week.

An operator can agree different terms on an individual rental, and a long rental bills per 28-day cycle rather than in one lump. So treat this as what the rate card says, and the operator’s quote as what you are agreeing to.