How one real estate startup is taking on record heat this summer

How one real estate startup is taking on record heat this summer


Runwise co-founders (L-R) Jeff Carleton, Lee Hoffman and Mike Cook.

Courtesy of Runwise

A version of this article first appeared in the CNBC Property Play newsletter with Diana Olick. Property Play covers new and evolving opportunities for the real estate investor, from individuals to venture capitalists, private equity funds, family offices, institutional investors and large public companies. Sign up to receive future editions, straight to your inbox.

As brutally high temperatures bake the nation this summer, cooling is becoming increasingly critical across commercial real estate property portfolios. Landlords are balancing soaring demand with rising costs, putting energy efficiency front and center. 

The trouble is that most large building systems essentially run blind. Temperatures are set centrally, so they don’t know if certain parts of the building are running too hot or too cold. That’s why so many office workers sit at their desks wearing sweaters in the summer and then feel overheated in the winter.

Now, new technology is taking on the challenge. Runwise, a New York-based technology company, invented its own hardware/software platform to eliminate overheating in large buildings. It recently expanded that to cooling.

“We’re trying to hit these climate goals, yet right in our literal building we’re throwing money away every time you run a boiler when it doesn’t need to run, you’re wasting money and you’re producing carbon emissions unnecessarily that really make nobody comfortable,” said Jeff Carleton, co-founder and CEO of Runwise.

The Runwise desktop app.

Courtesy of Runwise

The company combines future weather algorithms with a wireless temperature sensor network that speaks to a Runwise central control system. That control analyzes the data and then operates the system more efficiently. 

For example, a 100,000-square-foot building may have just one boiler, but it needs multiple temperature inputs. Runwise would put in 20 to 25 sensors, which take an average based on the user setting and future weather, and then figure out how often to run the boiler. 

The tech is now installed in more than 10,000 buildings across 10 states, with roughly 1,000 customers, including major real estate owner-operators such as Related, Equity Residential, FirstService Residential, MTA, Port Authority, National Grid, Rudin, LeFrak, UDR, Douglas Elliman and Akam. Runwise claims to have collectively saved more than $100 million in energy costs to date.

Get Property Play directly to your inbox

CNBC’s Property Play with Diana Olick covers new and evolving opportunities for the real estate investor, delivered weekly to your inbox.

Subscribe here to get access today.

The startup recently announced a $55 million Series B funding round led by Menlo Ventures, bringing its total funding to $79 million. Other backers include Nuveen Real Estate, Munich Re Ventures, MassMutual Ventures, Multiplier Capital, Soma Capital and Fifth Wall.

Carleton said Runwise will use the additional funding to grow the business nationwide and, of course, to incorporate artificial intelligence into its systems.

“It’s only going to become more and more ingrained in what we build, as we collect data from more and more buildings and build more advanced models on how to run them more efficiently,” he said. “We plan to use AI to continuously make our algorithms more efficient.”



Source

Auto executives are hoping for the best and planning for the worst in 2026
Business

Auto executives are hoping for the best and planning for the worst in 2026

U.S. President Donald Trump and CEO of Ford Jim Farley clap, as President Trump visits a Ford production center, in Dearborn, Michigan, U.S., January 13, 2026. Evelyn Hockstein | Reuters DETROIT — The only consistency has been inconsistency for the U.S. automotive industry during the first half of this decade — a trend that’s expected […]

Read More
Sen. Warren blasts CFPB director for undermining Trump’s credit card affordability push
Business

Sen. Warren blasts CFPB director for undermining Trump’s credit card affordability push

U.S. Senator Elizabeth Warren (D-MA) and Director of the United States Office of Management and Budget, Russell Vought. Kevin Mohatt | Kevin Lamarque | | Reuters Sen. Elizabeth Warren on Friday accused the acting head of the Consumer Financial Protection Bureau of undermining President Donald Trump’s stated push to make credit cards more affordable, according […]

Read More
Why a niche category of CRE lending is suddenly seeing record deals
Business

Why a niche category of CRE lending is suddenly seeing record deals

Wepro | Moment | Getty Images A version of this article first appeared in the CNBC Property Play newsletter with Diana Olick. Property Play covers new and evolving opportunities for the real estate investor, from individuals to venture capitalists, private equity funds, family offices, institutional investors and large public companies. Sign up to receive future editions, straight […]

Read More