# Data Center Generator Market

> Data Center Generator Market valued at USD 8.31 billion in 2025, forecast to reach USD 19.92 billion by 2035 at 9.13% CAGR, led by AI campus builds.

Publisher: DC Market Insights  
Author: Satyabrat Rajawat, DC Market Insights  
Published: 2026-10-07  
Last updated: 2026-10-07  
Next review: Apr 2027  
Page: https://www.dcmarketinsights.com/report/data-center-generator-market

## Key takeaways

- Annual Capacity Additions Rise from 12.0 GW to 27.0 GW and Drive USD 14.69 Billion of New-Build Generator Spend
- Generator Sets Above 3 MW Grow at 15.08% a Year
- Generator Spend per MW in AI Halls Falls from USD 0.550 Million to USD 0.500 Million
- Natural Gas Generator Sets Grow from USD 1.01 Billion to USD 6.02 Billion

**Frequently Asked Questions**

**What is the size of the Data Center Generator Market in 2025 and 2035?**

USD 8.31 billion in 2025, rising to USD 19.92 billion by 2035. DC Market Insights estimates the market at USD 3.60 billion in 2020.

**How fast is the Data Center Generator Market growing?**

9.13% a year from 2025 to 2035. Growth was faster, at 18.23% a year, between 2020 and 2025 as AI campuses scaled up.

**Which fuel type leads the Data Center Generator Market?**

Diesel, with USD 6.97 billion or 83.8% of the market in 2025. Natural gas is the fastest-growing segment at 19.58% a year as AI campuses use gas engines for prime and bridge power.

**How much do data centers spend on generators per MW?**

About USD 0.620 million per MW for a conventional hall and USD 0.550 million per MW for an AI hall in 2025, according to DC Market Insights estimates covering generator sets, enclosures, fuel systems, controls and aftertreatment.

**Which region leads the Data Center Generator Market?**

North America, with USD 3.67 billion or 44.1% of 2025 value. The Middle East and Africa grows fastest at 11.88% a year.

**Who are the leading companies in the Data Center Generator Market?**

About 60% of the market is held by Caterpillar, Cummins and Rolls-Royce Power Systems together (DC Market Insights estimate). Generac, Rehlko, Mitsubishi Heavy Industries, HITEC Power Protection, Himoinsa, Atlas Copco, Aggreko, Kirloskar Oil Engines and Wärtsilä also compete.

**Which buyers spend the most on data center generators?**

Hyperscale data centers, with USD 3.23 billion or 38.9% of 2025 demand. GPU and neocloud providers grow fastest at 13.46% a year.

**Which country spends the most on data center generators?**

USD 3.25 billion in the United States, or 39.1% of 2025 spending, followed by China at USD 932.48 million. India grows fastest among large country markets at 14.34% a year (DC Market Insights estimate).

## Market by region (USD million)

## Dataset

| Series | Value | Unit |
| --- | --- | --- |
| Market size 2025 | 8,310 | USD million |
| Revenue CAGR | 9.13 | % |
| Market size 2035 | 19,920 | USD million |

## Frequently asked questions

### What is the size of the Data Center Generator Market in 2025 and 2035?

USD 8.31 billion in 2025, rising to USD 19.92 billion by 2035. DC Market Insights estimates the market at USD 3.60 billion in 2020.

### How fast is the Data Center Generator Market growing?

9.13% a year from 2025 to 2035. Growth was faster, at 18.23% a year, between 2020 and 2025 as AI campuses scaled up.

### Which fuel type leads the Data Center Generator Market?

Diesel, with USD 6.97 billion or 83.8% of the market in 2025. Natural gas is the fastest-growing segment at 19.58% a year as AI campuses use gas engines for prime and bridge power.

### How much do data centers spend on generators per MW?

About USD 0.620 million per MW for a conventional hall and USD 0.550 million per MW for an AI hall in 2025, according to DC Market Insights estimates covering generator sets, enclosures, fuel systems, controls and aftertreatment.

### Which region leads the Data Center Generator Market?

North America, with USD 3.67 billion or 44.1% of 2025 value. The Middle East and Africa grows fastest at 11.88% a year.

### Who are the leading companies in the Data Center Generator Market?

About 60% of the market is held by Caterpillar, Cummins and Rolls-Royce Power Systems together (DC Market Insights estimate). Generac, Rehlko, Mitsubishi Heavy Industries, HITEC Power Protection, Himoinsa, Atlas Copco, Aggreko, Kirloskar Oil Engines and Wärtsilä also compete.

### Which buyers spend the most on data center generators?

Hyperscale data centers, with USD 3.23 billion or 38.9% of 2025 demand. GPU and neocloud providers grow fastest at 13.46% a year.

### Which country spends the most on data center generators?

USD 3.25 billion in the United States, or 39.1% of 2025 spending, followed by China at USD 932.48 million. India grows fastest among large country markets at 14.34% a year (DC Market Insights estimate).

## How to cite

Data Center Market Research & Consulting | DC Market Insights, "Data Center Generator Market", updated 2026-10-07, https://www.dcmarketinsights.com/report/data-center-generator-market