Handling the largest running cost.
WHAT DOMINATES GENERATOR COST
Fuel, by a wide margin.
WHAT AFFECTS CONSUMPTION
The load, primarily Engine condition Fuel quality
WHY LOAD MATTERS
A lightly loaded generator still burns substantial fuel.
WHAT TO DO ABOUT IT
Run it when the load justifies it, and switch off otherwise.
WHAT TO CALCULATE
Litres per hour at your typical load.
HOW
Measure over several hours, rather than trusting the specification.
WHAT TO DO WITH THAT FIGURE
Compare fuel cost per unit against grid and alternatives.
WHAT STORAGE REQUIRES
A safe location away from the building Approved containers Protection from heat and sparks Security
WHY SECURITY
Fuel theft is common and expensive.
WHAT TO BE CAREFUL WITH
Adulterated fuel.
WHAT IT CAUSES
Injector and pump damage, which is expensive.
HOW TO REDUCE THE RISK
Buy from consistent, reputable sources Filter fuel before use Keep records of what was bought where
WHAT TO DO IF PERFORMANCE CHANGES AFTER A FUEL PURCHASE
Investigate the fuel first.
WHAT TO MONITOR
Consumption per hour, over time.
WHAT A RISE INDICATES
Engine condition, fuel quality, or theft.
WHAT TO AVOID
Storing large quantities without proper facilities.
