| Narragansett Electric a National Grid Co. | ||
| RESIDENTIAL | March, 2019 | 14.3¢ |
| RESIDENTIAL | April, 2019 | 12¢ |
| RESIDENTIAL | May, 2019 | 12¢ |
| RESIDENTIAL | June, 2019 | 10.1¢ |
| RESIDENTIAL | July, 2019 | 10.1¢ |
| RESIDENTIAL | August, 2019 | 8.4¢ |
| RESIDENTIAL | September, 2019 | 8.9¢ |
| RESIDENTIAL | October, 2019 | 11.3¢ |
| RESIDENTIAL | October, 2019 | 11.2¢ |
| RESIDENTIAL | November, 2019 | 11.8¢ |
| RESIDENTIAL | December, 2019 | 11.5¢ |
| RESIDENTIAL | January, 2020 | 13.5¢ |
| RESIDENTIAL | February, 2020 | 12.6¢ |
| RESIDENTIAL | March, 2020 | 10¢ |
| RESIDENTIAL | April, 2020 | 11.5¢ |
| RESIDENTIAL | May, 2020 | 11.5¢ |
| RESIDENTIAL | June, 2020 | 11.5¢ |
| RESIDENTIAL | July, 2020 | 13.8¢ |
| RESIDENTIAL | August, 2020 | 13.8¢ |
| RESIDENTIAL | September, 2020 | 13.8¢ |
| RESIDENTIAL | October, 2020 | 10.7¢ |
| RESIDENTIAL | November, 2020 | 14.9¢ |
| RESIDENTIAL | December, 2020 | 16¢ |
| RESIDENTIAL | January, 2021 | 16¢ |
| RESIDENTIAL | February, 2021 | 12.6¢ |
| RESIDENTIAL | March, 2021 | 15.8¢ |
| RESIDENTIAL | April, 2021 | 15.8¢ |
| COMMERCIAL | March, 2019 | 13.4¢ |
| COMMERCIAL | April, 2019 | 11.1¢ |
| COMMERCIAL | May, 2019 | 11.2¢ |
| COMMERCIAL | June, 2019 | 8.3¢ |
| COMMERCIAL | September, 2019 | 7.3¢ |
| COMMERCIAL | October, 2019 | 8.3¢ |
| COMMERCIAL | November, 2019 | 9.4¢ |
| COMMERCIAL | December, 2019 | 11.6¢ |
| COMMERCIAL | January, 2020 | 13.5¢ |
| COMMERCIAL | February, 2020 | 12.6¢ |
| COMMERCIAL | March, 2020 | 9.9¢ |
| COMMERCIAL | April, 2020 | 11.6¢ |
| COMMERCIAL | May, 2020 | 11.6¢ |
| COMMERCIAL | June, 2020 | 11.6¢ |
| COMMERCIAL | July, 2020 | 13.7¢ |
| COMMERCIAL | August, 2020 | 13.7¢ |
| COMMERCIAL | September, 2020 | 13.7¢ |
| COMMERCIAL | October, 2020 | 11.1¢ |
| COMMERCIAL | November, 2020 | 15.2¢ |
| COMMERCIAL | December, 2020 | 16.6¢ |
| COMMERCIAL | January, 2021 | 16.6¢ |
| COMMERCIAL | February, 2021 | 13.2¢ |
| COMMERCIAL | March, 2021 | 16.4¢ |
| COMMERCIAL | April, 2021 | 16.4¢ |