Do Amazon Data Centres Raise US Electricity Bills?

As data centre development accelerates across key markets, concerns persist about whether large facilities push up electricity bills for local residents. 

Amazon has sought to address this question by commissioning what it describes as a first-of-its-kind independent economic study into how its data centres interact with regional power grids and electricity pricing.

“There’s been a lot of speculation about data centres and their impact on utility rates. It’s an important question - and today, we have an answer,” says Kara H. Hurst, Chief Sustainability Officer at Amazon, writing on LinkedIn. 

“New independent research by Energy and Environmental Economics, Inc. (E3) found that Amazon data centres don’t increase electricity costs for people or businesses. Even more, they can actually support communities.

“This research reflects what we know to be true: doing business and making climate progress aren't mutually exclusive. We can meet growing energy demands while also strengthening grids, protecting customers and accelerating the carbon-free energy transition - and we are!” 

The research conducted by E3 focused on whether the electricity costs associated with Amazon data centres are subsidised by other ratepayers. According to the findings, Amazon pays the full cost of electricity required to operate its data centres and in some regions contributes more than the direct cost of service.

Understanding electricity pricing for data centres

Electricity bills reflect a combination of generation, transmission and distribution costs. These costs vary by customer type, with utilities typically applying different rate structures for residential customers, commercial users and large industrial customers such as data centres.

In the US, much of the existing grid infrastructure is ageing, with around 70% of power lines built more than 25 years ago. Investment is required to maintain reliability and meet rising demand from electrification, AI and cloud computing. A Lawrence Berkeley National Laboratory study found US electricity costs increased by 23% between 2019 and 2024, driven largely by the cost of upgrading transmission and distribution networks.

Utilities have increasingly introduced tailored tariffs for large energy users to ensure that infrastructure costs are allocated to those driving demand. Data centres are typically subject to these specialised rates, designed to prevent costs being passed to households.

What the E3 study found

E3’s analysis concluded that Amazon data centres fully cover their electricity costs and do not shift those costs onto residential or small business customers. In several regions, the study found that Amazon pays more than the minimum required to serve its load.

For a typical 100MW Amazon data centre, this surplus contribution is estimated at US$3.4m in 2025 and is projected to rise to US$6.1m by 2030. Utilities can use this additional revenue to fund grid modernisation programmes that improve reliability for all customers.

The study highlights how this dynamic plays out across different states. In Northern Virginia, a 2024 Dominion Energy earnings report noted that residential customers pay around 10% below the national average for transmission costs, with large customers including data centres covering 9% of those costs. In California, Pacific Gas & Electric has stated that each gigawatt of data centre demand could reduce the average household electricity bill by 1% to 2%.

Grid investment through regional partnerships

The research also points to the role of large data centre customers in supporting targeted grid investment. In Mississippi, Entergy is using capital from Amazon and other large customers to fund its US$300m Superpower Mississippi programme, aimed at improving grid resilience and reducing outages.

“Through our ‘Superpower Mississippi’ initiative, we’re making a US$300m investment to transform our grid like never before,” says Haley Fisackerly, President and CEO of Entergy Mississippi. 

“Typically, these kinds of large-scale upgrades would translate to higher electricity bills for our customers. 

“But thanks to the influx of new customers like Amazon coming to Mississippi, we’re able to fund these critical reliability improvements without passing any added costs on to our residential and small business customers. It’s a true win-win: we’re delivering a more robust, resilient grid, while ensuring our rates remain well below the national average.”

In Oregon, Amazon works with Umatilla Electric Cooperative under a self-supply agreement that allows the company to source its own energy, including renewables, without other customers bearing the cost.

Carbon-free energy and data centre demand

Beyond grid investment, Amazon continues to link data centre expansion with carbon-free energy development. The company has invested in more than 600 solar and wind projects globally, adding new generation capacity to regional grids that also serves homes and businesses.

Across the four states examined in the E3 study, Amazon is adding approximately 4.2GW of firm carbon-free energy capacity. The company is also investing in emerging technologies, including small modular nuclear reactors, to support future data centre demand with reliable low-carbon power.

For communities hosting large-scale data centres, the findings suggest that carefully structured tariffs and long-term utility partnerships can align infrastructure investment with rising digital demand. 

The study provides data to inform planning decisions as regions balance economic development, grid resilience and electricity affordability while data centre capacity continues to grow.