Department of Public Utilities is considering several proposals to spread the cost of substation upgrades, and until it decides on them no solar projects larger than 15 kilowatts can move forward in one part of the state


More than 100 megawatts of planned solar projects throughout southeastern Massachusetts are facing lengthy delays as needed grid upgrades wait for state approval

Until these improvements are approved and executed, no solar developments larger than 15 kilowatts for single-phase systems or 25 kilowatts for triple-phase systems can be connected to the grid in many of the covered areas

state energy department created a process that lets utilities propose plans to spread the cost burden of some grid upgrades among ratepayers, then recoup some of this money from future distributed generation projects and use it to reimburse ratepayers

capital investment project proposals must be approved by utilities regulators. Massachusetts is the first state to create such a process

April 2022, Eversource — which covers 140 towns around Boston and in the southeastern and western parts of the state — filed six such proposals relating to improvements in regions throughout southeastern Massachusetts

One of the proposals has been approved; the other five remain pending, raising questions about what happens next — and when

Department of Public Utilities was unable to share any concrete timeline, noting that it intends to consider each application in detail. Because the process is new — in Massachusetts and beyond — there is no precedent for how long such deliberations should or usually do take


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