Each supply mode has its place. The essential difference is not price but the degree of regularity and administrative clarity.
One-off orders: flexibility first
A one-off order suits infrequent or urgent needs: a short project, a machine working for a defined period, or a generator used in exceptional circumstances. Its main advantage is flexibility — no advance commitment to volumes or dates.
That flexibility has a cost: every order requires coordination from scratch, consumes administrative time repeatedly, and is subject to demand conditions at the moment of contact.
Supply contracts: regularity first
A supply contract sets volumes, delivery cadence, locations and the ordering mechanism in advance. The process shifts from a repeated decision to a standing arrangement, saving administrative time and reducing urgent orders.
Contracts suit facilities consuming diesel daily or weekly at relatively stable rates, and projects running for months with forecastable demand.
How to choose between them
The practical question is whether your consumption is recurring and predictable. If yes, a contract fits better. If demand is intermittent or tied to variable conditions, one-off ordering remains the logical choice.
- Regular daily or weekly consumption → supply contract
- A months-long project with a clear schedule → supply contract
- Urgent or short seasonal need → one-off order
- Equipment working for a defined period only → one-off order
- Several sites with steady consumption → supply contract
A middle path
The choice need not be binary. Some facilities start with one-off orders for a few months until actual consumption rates become clear, then move to a scheduled arrangement or contract built on real data rather than estimates.
