Generator Installation in Fraserburgh, AB43

• Essential loads only (3.5 to 5kW)

  Generator £400 to £900 + £450 install scope

  Runs

  Fridge + freezer + lighting + boiler + WiFi + a few sockets

  Fuel hours

  ~12 hours on a full tank (5L petrol typical)

  Best for

  Home with occasional outages, vulnerable resident, working from home essentials

• Comfortable home use (6 to 8kW)

  Generator £900 to £2,200 + £550 install scope

  Runs

  All essentials plus electric kettle, microwave, dishwasher, single zone heat pump or oil boiler

  Fuel hours

  ~10 hours on diesel typical

  Best for

  Family home wanting near-normal operation during 4 to 8 hour outages

• Whole-house backup (10 to 15kW)

  Generator £2,500 to £5,500 + £850 install scope

  Runs

  Almost everything except simultaneous induction hob + electric shower + EV charger at peak

  Fuel hours

  ~8 hours on standard diesel tank

  Best for

  Large detached home, holiday lets, properties with frequent or extended outages

• Commercial standby (15 to 50kW)

  Generator £4,500 to £18,000 + £1,400 install scope

  Runs

  Full commercial premises load, including 3-phase equipment, fish processing, retail

  Fuel hours

  ~10 hours on bulk diesel tank

  Best for

  Fraserburgh harbour businesses, fish processing, larger holiday parks, care homes

• Petrol

  Pros

  • ✓Cheapest generators (£400 to £1,500 typical)
  • ✓Easy fuel availability (any garage)
  • ✓Lighter weight portable units

  Cons

  • ·Petrol degrades in storage (6 to 12 months)
  • ·Higher running cost vs diesel
  • ·Lower power per litre

  Best for: Occasional use, portable backup, weekend/caravan

• Diesel

  Pros

  • ✓Best for sustained running (10+ hour outages)
  • ✓Diesel stable in storage 12+ months with stabiliser
  • ✓Lower running cost per kWh
  • ✓Stronger units last 8 to 15 years

  Cons

  • ·More expensive generator units
  • ·Requires diesel exhaust fluid in newer models
  • ·Heavier, less portable

  Best for: Standby and frequent outages, commercial use, harbour businesses

• Propane (LPG)

  Pros

  • ✓Cleanest burning, lowest emissions
  • ✓LPG stores indefinitely (no degradation)
  • ✓Quieter than diesel
  • ✓Can pair with property's existing LPG tank

  Cons

  • ·Higher running cost than diesel
  • ·Needs proper LPG supply or larger gas bottles
  • ·Cold weather can affect output below -10°C

  Best for: Properties on LPG already, environmentally conscious owners, occasional use

• Dual-fuel (petrol + LPG)

  Pros

  • ✓Flexibility, run on either fuel
  • ✓Petrol for short outages, LPG for long
  • ✓More resilient if one fuel becomes unavailable

  Cons

  • ·More complex unit, more expensive than single-fuel
  • ·Maintenance is more involved
  • ·Lower kW output than dedicated diesel

  Best for: Weekend cottages, holiday lets, customers wanting flexibility

• Battery + inverter (alternative, not technically a generator)

  Pros

  • ✓Silent operation
  • ✓No fuel needed (charges from solar PV or grid)
  • ✓Indoor installation possible
  • ✓Can pair with EV charger

  Cons

  • ·Higher upfront cost (£5,000 to £18,000)
  • ·Capacity limited (typical 10 to 20 kWh)
  • ·Not suitable for extended outages without solar

  Best for: Properties with solar PV, environmentally focused, frequent short outages

Common questions

Generator Installation FAQs for Fraserburgh

• What's the difference between auto changeover (ATS) and manual changeover?

  Auto Transfer Switch (ATS): the generator detects mains failure within 10 to 30 seconds and automatically starts up, transfers your circuits to generator power, then transfers back when mains returns. Hands-off, but adds £400 to £900 to the install. Manual changeover switch: when mains fails, you walk to the changeover unit, flip a lever, start the generator. Cheaper (£200 install), but you have to be home and able to operate it. About 60% of Fraserburgh installs are manual changeover, 40% ATS where the property is left empty (holiday lets, second homes, vulnerable resident).

• What size generator do I actually need?

  Three brackets cover most homes. Essentials (fridge, freezer, lighting, boiler): 3.5 to 5kW. Comfortable family home (essentials plus kettle, dishwasher, microwave): 6 to 8kW. Whole-house including induction hob and electric shower: 10 to 15kW. We do a load survey on site (5 to 10 minutes) and recommend the right size. Oversizing wastes money and fuel. Undersizing means circuits trip during use.

• How does a backup generator connect to my house wiring?

  Through a changeover switch fitted near the consumer unit. Mains feed and generator feed both go into the changeover, only one is live at a time (interlocked so you can never connect both, which would back-feed the grid and electrocute SSEN engineers). Output of changeover feeds your consumer unit. Either ATS (automatic) or manual switch depending on your choice. We never wire generators to a regular socket, that's illegal and dangerous (it back-feeds the property side of your meter onto the street).

• Do I need to notify SSEN that I have a generator?

  Yes for installations 16A or larger (most whole-house generators). We submit an ENA G98 or G99 form to SSEN as part of the install (same form used for solar PV and EV chargers). The form confirms your generator can't back-feed the grid through a properly designed changeover switch. SSEN don't charge for this. Without notification, your home insurance may not pay out for fire involving the generator install.

• How often do Fraserburgh homes actually lose power?

  More often than UK average. Coastal weather, overhead lines, the AB43 grid being on a longer feeder than urban Aberdeen. Average Fraserburgh property sees 2 to 6 outages per year, with 1 to 2 lasting more than 30 minutes. Storm events (Arwen 2021, Babet 2023) caused outages of 24+ hours for some Sandhaven and Cairnbulg properties. SSEN have improved resilience but Fraserburgh remains a higher-outage area than central Scotland.

• What about a battery + inverter alternative instead of a generator?

  Increasingly popular. Tesla Powerwall, Givenergy, Sonnen all offer 5 to 20 kWh battery + inverter setups that automatically take over within milliseconds of a mains failure. Silent, no fuel, can charge from solar PV. Higher upfront cost (£5,000 to £18,000) but no fuel ongoing. Capacity limited though, a 10 kWh battery runs an average home for 6 to 8 hours, not 24+ hours like a diesel generator. We do both, the choice depends on use case.

• Where does the generator actually go?

  Outdoor only, never indoors (carbon monoxide risk). Common locations: side of house against an exterior wall, garden shed (with proper ventilation), purpose-built generator enclosure. Distance from windows and doors: 4m minimum to prevent exhaust drift back into the house. Concrete or paved base required for stability. We design the location alongside the install.

• How loud is a backup generator?

  Depends on size and enclosure. Standard 5kW petrol portable: 70 to 80 dBA at 1m (about a vacuum cleaner). Diesel standby with proper enclosure: 50 to 65 dBA (a quiet conversation). Battery + inverter: silent. For domestic use we recommend enclosed diesel models or battery alternatives because of noise complaints from neighbours during outages (when everyone's outside checking what's going on).