Waste Heat

Downtown Denver, Colorado skyline at dusk.

Denver is building a sewage-powered thermal energy network

A proposed thermal energy network will harness heat from the earth and from wastewater to power renewable heating and cooling systems.

May 30, 2026 - National Public Radio

Clear glass with water being poured in against blue background.

Texas City to Test Waste Heat-to-Water Generation System

The technology harnesses waste heat to produce clean drinking water.

August 14, 2025 - Smart Cities Dive

Close-up of hand holding small white square thermoelectric generator in lab with computer in background.

Harnessing Waste Heat Through Thermoelectricity

Heat from industrial installations and buildings can be captured to create renewable electricity.

December 3, 2024 - Fast Company

London Underground

London Underground 'Waste Heat' to Warm City Homes

Part of a plan to move United Kingdom to renewable energy involves using heat from the London Underground to heat homes.

September 2, 2019 - The Guardian

Seattle Looks to Data Centers for Heat, Hot Water

Seattle’s Office of Sustainability & Environment (OSE) is looking to an unusual source for energy: the area’s data centers.

January 27, 2014 - Next City

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.

Top Books

An annual review of books related to planning.

Top Schools

The definitive ranking of graduate planning programs.

100 Most Influential Urbanists

The who's who of urbanism, according to Planetizen readers.

Urban Planning Creators You Should Know

A short list of voices on social, video, and podcasting platforms.