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Capacity expansion

Examples checked

In one minute

Adding plants, aircraft, stores, data centres or other capacity to sell more.

The big idea: New capacity earns only when it is used. Before adding it, check how full the new capacity will be, what the whole industry is adding at the same time, and what happens to prices if everyone adds at once.

Works when
When demand is clearly ahead of supply, your plants are already full, and the industry is not adding the same capacity at the same time.
Fails when
When everyone adds capacity together, prices fall, and new plants run half empty while their fixed costs stay.
Check this number first
Utilisation of current capacity. If it is not full, more capacity is not the answer.
In the worked example
Profit a year: USD 35 (USD millions a year at 80 percent full). See it add up

What it is

Capacity is how much a business can produce or serve: seats, rooms, tonnes, chips, megawatts. Expanding it means building or buying more. Because capacity is expensive and lasts for decades, the decision rests on how full it will be (utilisation) over many years.

  • Expand an existing site. Usually cheaper and faster than a new one.
  • New site (greenfield). A new plant or facility, often closer to customers or cheaper inputs.
  • Buy capacity. Acquire a rival's plant, or lease capacity instead of building it.

Why companies do it

The economic logic, most important first. A move usually rests on one or two of these.

  • Growth. Demand is above what current capacity can serve, so customers are being turned away.
  • Scale. A larger plant often makes each unit more cheaply.
  • Control of a bottleneck input. Capacity that is scarce (chips, power, landing slots) lets you sell when others cannot.

When it creates value, and when it destroys it

Creates value when

  • Current capacity is full and customers are being turned away.
  • Demand is expected to stay above supply for the life of the asset.
  • Costs per unit in the new capacity are low enough to win even if prices fall.
  • The company can add capacity in steps, so it is not stuck if demand stalls.

Destroys value when

  • The industry adds capacity at the same time and prices fall.
  • Demand forecasts prove too high and plants run half empty.
  • Building takes longer and costs more than planned.

The numbers to check

Ask for these, in this order, before you recommend the move.

  1. Utilisation of current capacity. If it is not full, more capacity is not the answer.
  2. Utilisation needed to break even on the new capacity. The lower the better.
  3. Industry capacity being added against demand growth. Tells you whether prices will hold.
  4. Capital cost per unit of capacity and its return. Return on capital decides the investment.

Worked example (illustrative)

Rounded numbers for a made-up business, shaped like real ones. Positive lines add to profit; negative lines are costs.

A packaging maker can build a plant for USD 200 million that makes 1 million tonnes a year, each tonne earning a USD 100 contribution. The plant has USD 35 million of fixed running costs a year and lasts 20 years. It expects to run it 80 percent full.

Worked example for Capacity expansion, in USD millions a year at 80 percent full. Illustrative figures.
LineUSD millions a year at 80 percent full
Contribution: 0.8 million tonnes x USD 100USD 80
Fixed running costs of the plantminus USD 35
Depreciation: USD 200 million over 20 yearsminus USD 10
Profit a yearUSD 35

Check: the lines above add up to the total.

The numbers that decide it

Return on USD 200 million
17.5 percent
Utilisation where the plant breaks even: (35 + 10) / 100
45 percent
Profit a year at 60 percent full
USD 15

So what: At 80 percent full the plant returns 17.5 percent and breaks even at 45 percent full. If the industry adds too much capacity and the plant runs 60 percent full, profit falls to USD 15 million, a 7.5 percent return, below most costs of capital. The question is what everyone else is building.

Real examples

Companies that made this move, by region, with what happened and a source checked on the date shown.

  • IndiGo

    IndiaToo early to tell

    In June 2023 IndiGo placed a firm order for 500 Airbus A320 family aircraft, the largest single aircraft purchase agreement on record, taking its total Airbus order book to 1,330 aircraft.

    The lesson: Ordering far ahead locks in delivery slots and prices for a fast-growing market; the risk is having too many seats if demand stalls.

    Source 1: Airbus, "India's IndiGo places record order for 500 A320 Family aircraft", 19 June 2023 (opens in a new tab), checked .

  • TSMC

    United StatesToo early to tell

    In March 2025 the Taiwanese chipmaker added USD 100 billion to its Arizona plans (three more chip plants, two packaging plants and a research centre), taking its planned US investment to USD 165 billion.

    The lesson: Capacity near customers and inside tariff walls can be worth higher building and running costs.

    Source 2: TSMC, press release, 4 March 2025 (opens in a new tab), checked .

  • QatarEnergy

    Middle EastToo early to tell

    The North Field expansion projects take Qatar's liquefied natural gas (LNG) capacity from 77 to 142 million tonnes a year, a rise of almost 85 percent.

    The lesson: A producer with the lowest costs can add capacity even when others worry about oversupply, because it can still sell at a profit when prices fall.

    Source 3: QatarEnergy, Annual Review 2024 (opens in a new tab), checked .

  • Intel (Ohio)

    United StatesMixed

    Intel slowed construction of its two Ohio chip plants to match demand, moving the start of the first to between 2030 and 2031 and the second to 2032.

    The lesson: Building in phases lets a company slow down when demand or cash falls short, but money already spent waits years to earn anything.

    Source 4: Intel, "Ohio One Construction Timeline Update", 28 February 2025 (opens in a new tab), checked .

  • Northvolt

    EuropeDestroyed value

    The Swedish battery maker filed for bankruptcy in Sweden in March 2025. It cited rising capital costs, supply chain disruption and shifts in demand, and significant internal problems in ramping up production.

    The lesson: Capacity that cannot reach good yields and full use quickly burns cash faster than any order book can repay.

    Source 5: Northvolt, "Northvolt files for bankruptcy in Sweden", 12 March 2025 (opens in a new tab), checked .

How to recommend it in a case

Answer first, then the reasons with numbers, then the risk and the next step. Three sentences, said out loud.

I recommend building the plant, because at 80 percent full it earns USD 35 million a year, a 17.5 percent return on USD 200 million, and it breaks even at only 45 percent full.

Our current plants run above 90 percent and we are turning orders away, so most of the new output already has buyers.

The risk is rivals adding capacity at the same time; next I would map announced plants across the industry against demand growth and see whether we can build in two phases.

The numbers to quote: Current utilisation; Breakeven utilisation; Industry capacity added against demand; Return on capital.

The figures in the answer come from the illustrative worked example above. In a case, use the client's own numbers.

Classic interview traps

  • Assuming new capacity runs full. Ask what the breakeven utilisation is.
  • Forgetting rivals: if everyone builds, prices fall.
  • Ignoring time: plants take years to build, and demand may change before they open.

Where it is common

Sources

Practise it

Where this move comes up in cases

Related moves