Finance standby backup generators from £15,000 to £400,000, for business continuity at offices, data centres and critical sites. HP, lease, or refinance
Yes, backup generators are financed as a standard asset purchase, usually on hire purchase or a lease, with the machine itself acting as the security. UK prices typically run £15,000 to £400,000, and most deals are written over 12–72 months with a deposit of around 10–20%. Decisions typically take 24–48 hours. Used machines are financeable too, usually with a shorter term.
Typical Cost
£15k – £400k
Approval Speed
24–48 hours
Sized to critical load, not peak demand
Rates From
4.8% APR
Your estimate
Indicative only. Not a quote and not an offer of finance.
Pre-filled with a typical backup generator price. Indicative only, not a quote.
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For UK limited companies with 3+ months’ trading and monthly revenue.
On a purchase price of £80,000: a 10% deposit of £8,000, then 48 monthly payments of £1,688 at 5.9% APR representative (fixed). Total amount payable £89,024, including the deposit. The rate you are offered depends on your business and the asset.
Guide prices for sizing a finance agreement, not quotes. Manufacturers in this market mostly price on application, so where a current UK list price could not be confirmed the row describes a specification class rather than naming a model. Your supplier quote is what the agreement is written against.
| Machine or specification | Guide price | Type |
|---|---|---|
| FG Wilson P150-3 Standby (150kVA) | £28,000 – £42,000 | Diesel Standby Generator |
| Cummins C220 D5 Standby (220kVA) | £40,000 – £60,000 | Diesel Standby Generator |
| Caterpillar DE300 Standby (300kVA, with ATS) | £65,000 – £95,000 | Standby Generator + Transfer Switch |
| Kohler KD2000 Standby (2MVA, Data Centre Grade) | £250,000 – £380,000 | Critical-Site Standby Generator |
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For UK limited companies with 3+ months’ trading and monthly revenue.
Standby generators and associated switchgear generally qualify as plant and machinery for capital allowances, so a business can typically set some or all of the cost against taxable profits through the Annual Investment Allowance or other first-year reliefs, subject to your total qualifying spend for the year. Confirm current treatment with your accountant before finalising the finance structure.
This category covers fixed standby installations for business continuity, distinct from mobile diesel gensets used for construction sites or events, and the typical buyer is a business where a power outage would cause serious operational or safety consequences: data centres, hospitals, care homes, food cold storage, server rooms or manufacturing sites with continuous processes. A standby installation is normally specified with an automatic transfer switch (ATS) so the generator starts and takes over the electrical load within seconds of a mains failure without manual intervention, and sizing is based on the specific critical load that needs to keep running, not the whole site's peak demand, which is why a load audit with an electrical engineer is the right starting point.
Some specialist lenders consider businesses with imperfect credit histories. You may need a larger deposit or personal guarantee, but options may be available. Fundably may use a soft credit check for matching, which does not affect your credit score. A hard check may happen if you choose to proceed with a lender.
Explore business funding options through Fundably.
For UK limited companies with 3+ months’ trading and monthly revenue.
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Check Eligibility →For UK limited companies with at least 3 months’ trading and monthly revenue.