A new type of firm: Build partners with Index. Learn More

Insights

Research, analysis, and perspectives on the built world.

Technology

Data Center UPS and Battery Rooms: Layout and Safety Rules

UPS and battery rooms are regulated power spaces, not storage closets. This guide covers VRLA versus lithium-ion, room placement, ventilation, suppression and the code checkpoints that matter before plan review.

June 28, 2026 ·4 min read

Technology

Data Center Waste Heat Recovery: What Developers Need to Know Before It Becomes a Requirement

A developer-focused guide to data center waste heat recovery and reuse. Covers EU regulatory requirements (EnEfG 10% ERF from July 2026), real commercial projects at scale (Meta Odense, Fortum Helsinki, Stockholm Data Parks), and the four site criteria that determine feasibility: proximity to heat demand, continuous local demand, cooling architecture temperature, and utility alignment.

June 27, 2026 ·5 min read

Technology

Direct-to-Chip Liquid Cooling for Data Centers: The Developer's Decision Guide

Direct-to-chip (DTC) single-phase liquid cooling accounts for 55% of the liquid cooling market and is the default specification for AI-era data centers in 2026. This guide explains when to choose DTC vs immersion cooling, how site criteria change, what the two-loop infrastructure requires, and the five specification mistakes that create operational problems later.

June 26, 2026 ·5 min read

Technology

Large Load Tariffs Are Now a Data Center Underwriting Variable

As of May 2026, 23 states have approved large load tariffs requiring data center developers to fund grid upgrades, sign long-term demand contracts, and post collateral. This post explains what AI can model, what requires expert judgment, and how to sequence tariff diligence before LOI.

June 25, 2026 ·5 min read

Technology

Long Context vs. RAG for Data Center Document Analysis: What Institutional Developers Need to Know

Long context windows and RAG pipelines are the two main AI architectures for document-heavy workflows in institutional real estate development. This post explains when each approach is correct, where each breaks down, and why the strongest production architecture for data center due diligence combines both -- with context caching for cost control.

June 23, 2026 ·5 min read

Technology

Training vs. Inference Data Centers: Two Different Buildings

Training and inference AI workloads require fundamentally different data center designs: site selection logic, cooling architecture, electrical infrastructure, and underwriting frameworks diverge at nearly every level. This explainer maps those differences and explains why a mixed-design compromise serves neither workload well.

June 22, 2026 ·5 min read

Technology

Raised Floor vs. Concrete Slab in Data Centers: How to Make the Right Call for AI-Era Builds

The choice between raised access floors and concrete slab construction shapes cooling architecture, structural capacity, and operational flexibility for the life of a data center. This guide explains when slab-on-grade is the right default for AI-era high-density builds and when raised floors remain a legitimate choice for specific applications.

June 21, 2026 ·5 min read

Technology

Software-Defined Data Center Infrastructure: What AI Orchestration Actually Changes for Developers

Software-defined data center infrastructure has moved from an operational efficiency play to a grid-scarcity and AI-density necessity. This post explains what software-defined orchestration of power, cooling, and compute means for institutional developers, what is deployable today, and how it enters design, commissioning, and operator handoff decisions.

June 18, 2026 ·6 min read

Technology

AI Power Risk Scoring for Data Center Sites: How Developers Are Quantifying the Primary Constraint

AI power risk scoring decomposes grid access into five risk dimensions -- power availability, grid reliability, interconnection queue risk, price/regulatory risk, and community/policy risk -- each requiring different data and model types. This post explains how developers use these scores in site selection, IC underwriting, and lease negotiation.

June 16, 2026 ·7 min read