Buildings consume an enormous amount of energy. We have plenty of technologies that could make them perform better. So why is the real estate industry often so slow to adopt them?
Dermot Sweeny has spent decades confronting that problem from the architect’s side. When he couldn’t convince clients to try a radically different approach to office design, he bought an older building and proved it himself. More than 7 million square feet later, that willingness to test ideas in real buildings has become central to how Dermot and his son Aiden evaluate new technology.
In this episode, Nico explores how they turn promising ideas into technologies that developers are actually willing to use, including:
🔹 Why real estate’s resistance to change makes real-world proof so important
🔹 How a 2–4% increase in upfront cost can produce 30–50% reductions in energy costs
🔹 Using buildings as proving grounds for new technologies before asking clients to take the risk
🔹 Where building-integrated solar, wastewater heat recovery, advanced windows, energy monitoring, and smarter HVAC fit into the equation
🔹 Why occupant comfort, fresh air, daylight, and flexibility can be economic advantages—not just sustainability features
🔹 How lower operating expenses can translate into higher real-estate value
For energy entrepreneurs trying to get new technology deployed, this conversation offers a useful look at what happens between having a better idea and convincing someone to actually put it in a building.
Hit play to learn why the building itself may be one of your biggest untapped energy assets.
Are there other technologies you’ve scouted on the frontlines of the Clean Energy Revolution that you think we should be covering here on SunCast?
Hit us up - [email protected] with your feedback & recommendations.
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(00:00) The 1,200 Space Heaters Under Desks Anomaly
(01:03) Welcome to SunCast: Commercial Buildings as Energy Systems
(03:08) Inventing Underfloor Air Distribution and Passive Cooling
(07:30) Integrating Daylighting, Perimeter HVAC, and Glare Control
(12:21) Bridging Economics, Venture Capital, and Real Estate Decarbonization
(17:31) How Lowering Operating Costs Boosts Real Estate Value
(20:11) Designing High-Performance Buildings from the Ground Up
(25:07) Overcoming Real Estate Risk Aversion with Proven Performance
(30:05) Cleantech Venture Investing and Wastewater Heat Recovery
(33:53) Submetering Analytics, Predictive Maintenance, and Advanced Dehumidification
(37:47) Deploying Building-Integrated Photovoltaics on Urban Facades
(46:01) Navigating Net-Zero Residential Real Estate and Heat Pumps
(53:10) Overcoming Landlord-Tenant Split Incentives to Drive ROI
(58:23) High-Performance Buildings in the Energy Transition
