The Department of Energy says that commercial buildings account for 36% of all electricity usage in the US and cost more than $190 billion in energy each year.

Many of today’s commercial buildings predate modern energy-saving tools and techniques. That means they waste a lot of energy — up to 30% of it, according to the US Environmental Protection Agency.

It’s about time we updated buildings to learn from what’s happening inside and around them. It’s time to think about how to make our buildings smarter. Thanks to the Internet of Things, we can.

Read about one company that’s tackling commercial building efficiency on several levels, starting with understanding energy usage. The system uses sensors in office buildings and factories to monitor data including occupancy, temperature, lighting, and energy use to reveal how much energy they’re using, where, and how.