Presentation Description: From the frigid outreaches of Antarctica to the hottest regions of Australia, new, hybrid microgrids are powering communities seeking energy autonomy and helping utilities to better manage increased renewable and distributed energy resources. The speaker provides three case studies:
· The ESCRI (Energy Storage for Commercial Renewable Integration) Dalrymple BESS project, in South Australia, has only one power connection to the mainland. It is deploying 90 MW of wind, distributed rooftop solar, and a 30MW/8MWh battery storage system to power several towns, enable grid operator ElectraNet to provide greater stability and prevent outages, and deliver power to the greater South Australia grid.
· Robben Island is a UNESCO World Heritage site and former prison in South Africa that receives upward of 2,000 visitors per day. It is leveraging solar and diesel, plus 500 kW/837 kWh BESS to lower fuel costs and carbon emissions by 75 percent. The system enables the island to run solely on solar for at least nine months of the year. Monitoring and set up is done remotely from Cape Town, so teams can avoid the island’s treacherous currents.
· Cordova, Alaska, a remote community that can be reached only by plane or boat, is not connected to major electric transmission lines or highways. Since 2015, it has experienced 7.0 earthquakes, a volcanic eruption and super storms with winds that topped 100 miles/hour. It has also felt the impact of the Exxon Valdez oil spill. The Cordova Electric Cooperative (CEC) established a hybrid microgrid that has enabled the adoption of renewable power from two new hydroelectric projects, plus a grid scale ESS and advanced BESS. Cordova has reduced its reliance on diesel by 25%, and is saving 40,000 – 50,000 gallons of diesel annually.
better envision creative combinations of renewable and grid energy sources, and how storage fits in.
evaluate whether a microgrid might be a high value option for his/her environment.
describe the role of microgrids in reducing the carbon footprints of communities and utilities.