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Above Photo: The winning team’s Heila IQ operates as a “brain” to simplify microgrid operations and make distributed energy systems easier to manage, in order to bring more wind and solar power online. Credit: Jessie Wang.

The latest MIT Energy Prize winners have zeroed in on technology to make climate-friendlier distributed power more effective, to bring more wind and solar online.

An idea born in a California vineyard may make microgrids—small-scale electrical systems hailed as a big part of the future of climate-friendlier power—ready for their future starring role.

Up to now, these highly localized versions of power plants, which serve mainly hospitals, military bases and colleges, have been more micro than grid because they don’t work well with each other. A Massachusetts Institute of Technology Ph.D. student and four colleagues were creating one at Stone Edge Farm in Sonoma, Calif., last year when they stumbled on a way to make them communicate more effectively.

The group, who call the operation Heila Technologies, created an array involving gas generators, solar panels and batteries. And an innovation that sounds a bit like sleight of hand.

Jorge Elizondo, a doctoral student in electrical engineering and computer science at MIT, said the system is a “distributed controller to simplify the process—to hide the complexity of every one of the elements in the system to make them look like a simple element.”

The innovation won Elizondo and his colleagues the $100,000 MIT Clean Energy Prize earlier this month.

What the team calls Heila IQ, is a “brain” to simplify microgrid operations and make distributed energy systems easier to manage. That, the group hopes, will bring more wind and solar power online.

“Microgrids are usually controlled in a hierarchical way, so you have a central controller that commands different elements in the system to do something,” said Elizondo. “We are working on a layer below that, an interface between different systems in the microgrid.”

Experts say the flexibility of microgrids can help reduce greenhouse-gas emissions that warm the planet—and help communities prepare for a more unpredictable climate. Microgrids encourage the development of wind and solar power systems, which are smaller and more nimble than coal or natural gas power plants, while emitting zero carbon emissions. In principle, microgrids can also make power systems more reliable and resilient because if a storm knocks out part of a microgrid network, the system would adjust the flow of power to compensate for a sudden shortfall of supply.

Heila IQ aims to tackle a central challenge of microgrids: namely, how to command and control them, to get them to share information and respond to changes in concert with one another. For example, a battery in a microgrid needs to know to release stored power when clouds roll in and solar panels aren’t turning sunlight into electricity.

A microgrid is one distinct, self-reliant piece of a smarter, more distributed power grid. It is a mini-network that links smaller, local power producers—like solar panels and gas generators—with local consumers such as buildings and electric vehicles. Microgrids often include batteries or other storage devices that keep power within the system for times when demand peaks or production drops. Consumers and producers in a microgrid might use data analytics, smart meters and other web-enabled energy technologies or apps to better match supply with demand. Most crucially, microgrid systems, in theory, “talk” to one another and the broader electrical grid itself, allowing it to shift supply where it’s needed.

Upsetting the Monopoly Board

The modern power grid, which supplies virtually all electricity consumed in the U.S., is largely centralized. Large plants generate power that radiates outward through transmission lines—like the hub and spokes of a wheel—to homes, businesses, and other consumers.

For example, the Dresden Generating Station, a nuclear plant in northern Illinois, has a capacity of 1,845 megawatts and serves 1.5 million customers across the state, according to the plant’s owner, Exelon Generation.

That dynamic is changing as utilities, power producers, and consumers increasingly rely on renewable energy sources, large-scale batteries, energy-management software and other “intelligent efficiency” technologies. The grid is beginning to look more like a diffuse network with multiple, discrete sources of energy production and consumption that can communicate with one another and rapidly adapt to changing circumstances.

“[Historically,] the assumption was that we ought to have utility monopolies, because it was the only logical economic and political arrangement for a grid system that had to be centralized and where the economies of scale were so big,” said John Farrell, director of democratic energy at the Institute for Local Self-Reliance, a nonprofit research and educational organization in Washington, D.C. “And all of the justification we have for that system is now eroding in the face of new technology and economic truths.” Those truths include rapidly falling costs of renewable technologies and the steadily increasing costs of extracting and burning fossil fuels.

A Powerful Micro Wave

In 2015, there were only 1.5 gigawatts of microgrid capacity online in the U.S., representing about 0.1 percent of the country’s total installed electric generating capacity, according to a 2015 Greenteach Media (GTM) research report. Microgrid operations are most common on military bases, university campuses, and hospitals, places with a critical need for reliable power. By 2020, U.S. microgrid capacity is expected to increase by 127 percent, according to GTM.

“The level of competing technology we have gives us much more sophisticated ability to control our energy use at a local level than had ever been possible before,” Farrell told InsideClimate News.

Heila IQ aims to tackle a central challenge of microgrids: namely, how to command and control them. It’s one thing to build a network of solar panels and power consumers. It’s another thing entirely to get them to share information and respond to changes in concert with one another. For example, a battery in a microgrid needs to know to release stored power when clouds roll and prevent solar panels from turning sunlight into electricity.

That became the basis for Heila IQ, which the team hopes to further develop and market to military bases, hospitals, and potentially even larger markets. The MIT prize money will allow Heila (the Icelandic word meaning brain) to hire more staff and accelerate the technology’s development, Elizondo said.

Ultimately, Elizondo hopes, the technology will help expand the use of microgrids and make wind and solar more attractive as power sources.

“I see a big problem with climate change and I wanted to contribute,” Elizondo told InsideClimate News. “How I can contribute the best is by [building] technology to make renewables more widespread.”

Since its founding in 2008, the MIT Clean Energy Prize has awarded $2.6 million in prizes to clean-energy startups across the country. Last year, the grand prize went to OptiBit, which works on technology to make data centers more energy efficient.