The Mystery Of The Massachusetts Battery Tender - CleanTechnica

The article discusses the recently enacted Massachusetts law mandating the installation of 5,000 MW of battery storage capacity by 2030, with a focus on the complexities surrounding the energy storage duration requirements. While an initial 1,500 MW tender specified a minimum of 4 hours duration (implying about 5,072 MWh of energy storage), the broader law categorizes the battery systems into three duration groups: 3,500 MW with 4-10 hours, 750 MW with 10-24 hours, and 750 MW with at least 24 hours. This translates to a minimum total energy storage capacity of approximately 39,500 MWh, a significant increase over typical lithium-ion battery deployments which generally offer up to 4 hours duration. Given the ambitious duration requirements—especially the 10-24 hour and 24+ hour segments—the article suggests lithium-ion technology alone is unlikely to meet these targets by 2030. Instead, it highlights the potential of alternative