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Ask HN: Our town faces a 300MW DC proposal. What are the real risks?

Article news.ycombinator.com

Ask HN: Our town faces a 300MW DC proposal. What are the real risks?

Hey HN,

Our small town was recently approached by a developer with a proposal for a 300 MW Data Center (DC). The site is highly attractive due to existing infrastructure: proximity to a major power source and access to plenty of non-potable water. Additionally, favorable state-level tax incentives (established in 2015) make our region a target for this type of development.

As expected, the proposal has generated significant, vocal pushback from some community members, particularly those near the proposed site. Their public discourse is often based on misinformation or non-contextual talking points (e.g., cooling issues from areas with different water/infrastructure requirements, the rise of AI, etc). With over 20 years in the DC industry, I recognize that while some concerns have validity, many are invalid.

I'm turning to the HN community for solid, quantifiable feedback to help me weigh the genuine benefits and risks of this specific project. My goal is to create a packet of information to help educate our community and town council before project approval/disapproval.

The Facts:

------------

* Size: 300 MW DC

* Location: About 1 mile from our local Nuclear Power Station and just across the street from the water supply. This is approximately 4.5miles outside the current town center.

* Scale: Town's current peak draw is about 120 MW and the DC needs about 2.5× our existing demand

* Cooling: Evaporative cooling using non-potable water (no competition with drinking water)

* The Claim: Developer $20.7M (US) tax revenue during the construction phase and $13.5M (US) annually in tax returns

* Details: The proposal can be seen here[1]

After doing some personal research, I'm mostly comfortable with the water usage and noise analysis. My core anxiety is the power infrastructure and local utility rates.

My Questions (Seeking Data/Case Studies on similar size/type of DC)

------------------

* Effect of Utility Rates: How will a ~ 250% increase in local demand affect the existing residential and commercial utility contracts? Is it standard for a high-volume industrial client (co-located near the power source) to negotiate an entirely separate, discounted industrial rate that guarantees no rate increase for existing town residents?

* Unforeseen Grid Stress: Beyond the DC itself, what are the other risks this level of sustained demand puts on the regional grid infrastructure (e.g., specific substation upgrades, maintenance costs, or reliability risks) that small towns fail to account for?

* Any other technical details I need to ask?

Any technical analyses, case studies, or experience with utility rate structuring for major DC projects near power plants would be invaluable.

Thanks in advance.

[1] https://newhilldigitalcampus.com/

Discussion 2 comments · 5 points · rtp4me · 2025-11-17
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