Electrical Material Stock Level Planner
Build a simple time-phased inventory forecast using opening stock, planned usage and scheduled deliveries. The planner shows the balance after each period so procurement teams can see when materials become tight.
Plan projected inventory
Projected inventory balance
| Period | Opening | Consumption | Project demand | Delivery | Closing |
|---|
This forecast is an inventory-planning model, not a site-material release schedule. Use actual receipts, issued quantities, losses, rejected material and approved changes when updating the plan.
How the stock forecast works
For each period, the model starts with the prior period's closing balance, adds any scheduled delivery, and subtracts routine consumption plus project demand. The resulting closing balance becomes the opening balance for the next period.
Formula
Closing inventory = Opening inventory + Deliveries − Consumption − Project demand
The calculation does not assume a universal safety-stock rule. A negative projected balance simply means the planned demand exceeds available inventory by that point.
Example interpretation
If a project starts with 500 units, uses 45 units per period and has another 10 units of project demand, the inventory falls by 55 units per period until the delivery arrives. A late delivery can therefore create a much earlier stock problem even when total project demand can eventually be covered.
Common planning mistakes
- Counting ordered material as available before its expected receipt period.
- Mixing different units, such as metres of cable and drums, in one forecast.
- Ignoring damaged, quarantined or reserved stock when defining opening inventory.
- Using a uniform consumption rate for a project with highly uneven installation phases.
Frequently asked questions
Does this calculate safety stock?
No. It projects balances from the quantities you provide. A separate policy can be applied to determine the required minimum or safety stock.
Can I model one delivery?
Yes. The current version uses one scheduled receipt so the result stays easy to audit. For complex schedules, repeat the forecast by material or delivery event.
What does a negative balance mean?
It indicates a projected inventory deficit under the entered assumptions. It is a planning warning, not proof that a physical shortage will occur.
Can this be used for electrical cable?
Yes, provided every quantity uses the same measurement basis, such as metres, pieces, or drums.