We use a diverse fuel mix to generate electricity for Michiganders. This makes for more reliable and affordable energy. Find out what fuel sources we use.
Bold Changes for a Better Future
MISO - Our Regional Power Grid
We are part of the Midcontinent Independent System Operator (MISO) power grid. MISO is a not-for-profit organization that includes 15 U.S. states and Manitoba, Canada. MISO runs one of the world’s largest energy supply markets. MISO’s role is to manage the creation of power. Our role is to make sure the power that reaches customers is reliable.
The supply and demand for electricity is impacted by extreme weather, unplanned repairs and supply chain issues. Technology is used to predict energy needs and how much energy can be made. Each year, we make sure we make more electricity than MISO asks us to provide.
MISO monitors real-time use to make sure demand does not exceed available supply. MISO has a process to help reduce electric demand when it is in danger of exceeding supply.
The mix of energy sources impact the supply available. This chart shows the percentage of total megawatts supplied by all energy providers in the MISO region. “Other” is the combination of Hydro, Pumped Storage Hydro, Diesel, Demand Response/Energy Reduction Programs and a variety of solid waste, garbage and wood pulp burners. This chart is updated every 5 minutes.
When reviewing electric demand, the load forecast looks at the day ahead planned use (cleared demand), day of planned use (medium term) and real-time use (actual load) measurements. The Actual Load updates every 5 minutes and shows the electricity used in the MISO market.
What We Do if MISO Asks Us to Reduce Demand
We plan ahead. Energy efficiency, demand response and new technologies all help us deliver the energy Michigan needs.
First we will lower our use at all our locations across the state.
We reach out to our customers that are in energy reduction programs and ask them to shift energy use away from peak times.
Then we reach out to high-energy users like factories and large offices to reduce their energy use. We give them as much notice as possible.
If more help is needed, we communicate on social media, our customer app, and website to ask all customers to volunteer to use less energy.