What ChargerGrade did Twin City Plaza receive?

Twin City Plaza received a A, or 89 out of 100, under the published resilience formula.

How many DC fast ports are listed at Twin City Plaza?

The September 16, 2026 AFDC snapshot lists 6 DC fast ports at this location.

Does ChargerGrade measure charger uptime?

No. ChargerGrade measures recorded redundancy and fallback strength; it does not have station-level session success or historical uptime data.

Twin City Plaza Charger Reliability & Backup Grade

Twin City Plaza

This public DC fast-charging location received grade A (89/100) from 6 listed ports, 93 alternative sites within 10 miles, access hours, connectors, and the September 16, 2026 AFDC snapshot.

14-22 McGrath Hwy, Somerville, MA 02143

This station earns a A because its physical redundancy and nearby fallbacks are strong. This is a resilience estimate—not measured uptime.

THE INSPECTION CARD

Why Twin City Plaza scored 89

Twin City Plaza received grade A (89/100) from 6 listed DC fast ports, 93 nearby fallback sites, 18 other nearby networks, and listed 24/7 access.

Official statusAvailable20/20

Port redundancy6 DC fast ports19/25

Around-the-clock access24/7 listed15/15

Nearby fallbacks93 sites within 10 miles15/15

Network diversity18 other networks within 25 miles10/10

Connector coverageCCS5/10

Record freshnessUpdated 0 days before snapshot5/5

Before you drive

AFDC is a planning dataset, not a live operations feed. Confirm connector compatibility, pricing and current availability in the operator’s app.

Fast-charging fallbacks near Twin City Plaza

AFDC lists 6 alternative DC fast-charging sites within 25 straight-line miles of Twin City Plaza; the nearest listed alternative is 0.6 miles away.

Station	Distance	Capacity	Status
Cambridge, MA - Tesla SuperchargerTesla	0.6 mi	8 ports	Available
Somerville, MA - Tesla SuperchargerTesla	1.2 mi	16 ports	Available
Federal Realty - Assembly Row (Somerville, MA)Electrify America	1.5 mi	3 ports	Available
Boston, MA - Boylston Street - Tesla SuperchargerTesla	1.8 mi	8 ports	Available
Boston, MA - Richard B. Ross Way - Tesla SuperchargerTesla	2.1 mi	8 ports	Available
421 PARK DC SPOT 1ChargePoint Network	2.1 mi	1 port	Available