Bring Your Own Power Data Centers Plan 177 GW of Gas

Bring your own power (BYOP) means an artificial intelligence (AI) data center developer arranges dedicated power instead of relying only on the grid. A report by the Better Data Center Project and Earthjustice estimates that gas will supply about 80% of BYOP generation coming online in the next five years. The report also puts planned gas capacity at 177 gigawatts (GW) and says BYOP is not a simple fix for affordability.

What Is Bring Your Own Power for Data Centers?

Developers pursue BYOP to bypass long waits for grid service. The approach means procuring dedicated energy resources instead of relying only on grid power. The report is an advocacy report from two organizations, and its numbers are its own estimates. We read the report's executive summary, key findings and author's note in full on Earthjustice's page for the report, which is dated October 8, 2026. We did not read the full report PDF or its interactive map, and we have not checked the projects it counts.

The report's headline numbers are:

• 177 GW of planned gas capacity.
• About 80% of BYOP generation coming online in the next five years, from gas.
• Over 400 million metric tons of carbon dioxide (CO2)-equivalent a year, if the gas proposals were built.
• $5 billion to $10 billion in monetized health damages each year from ozone and particulate pollution.

For scale, the report says the United States (U.S.) has over 300 GW of AI data center capacity planned or under construction as of mid-2026. Peak U.S. electricity demand on the hottest day of 2025 was 760 GW.

Why Developers Want It and Why Policymakers Push It

The report says developers turn to BYOP for "speed-to-power", to get power as quickly as possible. It says their aim is not to solve the energy-bill impacts of AI. The report also says policymakers are incentivizing or requiring BYOP to address those bills.

How Big the Gas Buildout Is

The report estimates that 177 GW of planned gas capacity equals 23% of U.S. peak demand in 2025.

The same 177 GW, the report says, is enough to power 65% of all U.S. homes. Single projects are large too. As of August 2026, the report counts nine proposed gas BYOP projects of 4.5 GW or larger. If all nine were built, nine of the ten largest power plants in the U.S. would be data center gas BYOP.

These figures describe proposed and planned capacity. They do not describe operating plants.

What It Could Mean for Nearby Communities

The report estimates that the 177 GW of gas proposals would emit over 400 million metric tons of CO2-equivalent a year. That would raise the U.S. power sector's total emissions by 23%.

The report also estimates health damage. Ozone and particulate pollution from the projects could cause an estimated $5 billion to $10 billion in monetized health damages each year.

The report says more than half of the disclosed gas BYOP capacity uses technologies it calls less efficient and more polluting than typical gas plants. That point gives residents one specific question to put to any proposed project: which technology the plant would use.

These are the report's estimates for the projects as a group. They are not measurements taken at any one site. The text we read does not name which plants or counties would be affected. For what living near a data center involves, read our explainer on living near a data center.

The report's author's note says BYOP is one part of broader AI data center risks. It says the report does not mean to downplay water, PFAS and toxic pollution, land use, economic, privacy, civil rights or environmental justice harms. The authors also say communities have a right to meaningful participation in decisions about large energy infrastructure.

Who Oversees Bring Your Own Power Data Centers?

Behind-the-meter BYOP projects can bypass planning or regulatory processes that generally apply to large new power plants, according to the report. The report also says most gas BYOP projects are proposed in states with weak environmental laws.

The report describes several ways that oversight can be avoided or weakened:

• Project segmentation: developers may split a project into pieces to avoid stricter permitting.
• Siting: developers may place projects in unincorporated or industrial areas with limited zoning or land-use approval.
• Secrecy: non-disclosure agreements, lack of transparency and project segmentation often obscure the relationship between an AI data center and its power project.
• Grid connection: most BYOP projects are expected to seek grid connection eventually.

The report says these obscured links limit public participation, especially for overburdened communities. Several questions follow directly from the report's points and can be asked of any proposed project:

• Is the plant behind the meter?
• Is the project split into pieces?
• Which permits and land-use approvals apply, and is the site in an unincorporated or industrial area?
• Will the project connect to the grid eventually?
• Is the project in a state with weak environmental laws?

The sources we read do not say whether any specific project has been permitted. They also include no response from data center developers or gas companies.

Will Bring Your Own Power Data Centers Lower Electric Bills?

The report says BYOP is not a simple fix for affordability. It says bills can rise through higher demand for gas and energy infrastructure, and a grid-connected project can push up capacity and electricity prices.

The report also says tax exemptions and other public subsidies often undermine claimed economic benefits. Most enacted BYOP state laws focus on impacts to ratepayers, the customers who pay for electricity. Those same laws also ease BYOP through expedited permitting or exemptions from public utility commission oversight. The report says more protective policies are emerging, but often not in the states where most gas BYOP is planned. For the broader bill question, see our explainer on whether data centers raise electric bills.

What Remains Unknown

The text we read does not say which specific plants or counties are affected. We did not check the estimates independently, and we did not review the map or the full report PDF. The report supports asking specific questions about a proposed project. It does not prove harm at any given site. If the map or full report showed figures that differ from these, our reading would change.

For a proposal in your area, start with our guide on how to stop a data center. If you want to put questions to officials in writing, see our data center comment letter page.

For the energy background, read why AI uses so much energy and our overview of data center impact. Readers who want to work with numbers can open our data center power calculator, data center emissions calculator and data center map. For any bring your own power data centers proposal near you, start with the oversight questions listed above.