DER standards, agreement & other resources
We’ll provide you with an estimated cost (Service Layout quote) or connection impact assessment and will include the standards relevant to you. You’ll find our other standards listed in the tables below.
Hydro Ottawa standards
The applicable standards referred to in the tables below will be provided at the Service Layout or Connection Impact Assessment, as applicable, and subsequent project stages. The term 'load displacement' in the standards listed below refers to a non-exporting generator; the term 'load displacement' will be removed from these standards in subsequent revisions. Within the technical requirements and standards detailed below, any reference to Micro-generation (10 kW AC or less) effectively encompasses projects up to and including 12 kW. Future revisions of these documents will be updated with this revised threshold.
General standards
| No. | Document title | Rev no. |
| ECG0002 | Technical guideline for customer owned emergency backup generation facilities | 2 |
| ECG0006 | Distributed energy resource technical requirements | 5 |
| GCS0008 | Secondary revenue metering specification | 6 |
| GDS0018 | DER service options | 1 |
| ECG0008 | Distribution system voltage & power quality | 5 |
| ECG0023 | Simplified DER commissioning guide | 0 |
| ECG0024 | Standard DER commissioning guide | 0 |
| Hydro Ottawa conditions of service |
MCB installation details
| No. | Document title | Rev no. |
| GCS0048 | HOL monitoring and control box (MCB) Model B installation with contactor – construction detail | 1 |
| GCS0051 | HOL monitoring and control box (MCB) Model B installation with circuit breaker – construction detail | 0 |
| GCS0054 | Coming soon | |
| GCS0055 | Coming soon |
Metering standards
| No. | Document title | Rev no. |
| MCS0057 | DER 120V/240V, 1PH, 3W, ≤200A, and 120V/208Y or 347V/600Y, 3PH, 4W, ≤200A secondary parallel service wiring detail – wiring detail | 4 |
| MCS0079 | DER 3PH, 4W, 400A to 600A secondary service construction and wiring detail – construction detail | 3 |
| MCS0083 | DER/RES 120V/240V, 1PH, 3W, ≤200A non-exporting or net-metering with single socket base – construction detail | 4 |
| MCS0084 | DER/RES 120V/240V, 1PH, 3W, 400A non-exporting or net-metering with ganged meter trough – construction detail | 5 |
| MCS0085 | DER/RES 120V/240V, 1PH, 3W, 400A transformer rated service using non-exporting (net-metering) with combination meter socket base – construction detail | 3 |
| MCS0086 | DER/RES 120V/240V, 1PH, 3W, 400A to 600A non-exporting (net-metering) with splitter trough – construction detail | 2 |
| MCS0087 | DER/COM 120V/240V, 1PH, 3W, 400A to 600A secondary service meter wiring – construction detail | 2 |
| MCS0088 | DER/RES 120V/240V, 1PH, 3W, 400A transformer rated service upgrade to combination meter socket base with non-exporting (net-metering) – construction detail | 1 |
| MCS0089 | DER/COM 120V/208Y or 347V/600Y, 3PH, 4W, 400A to 600A secondary service with offset meter socket - construction detail | 3 |
| MCS0090 | DER 120V/240V, 1PH, 3W, 400A to 600A secondary service with offset meter socket - construction detail | 2 |
| MCS0097 | DER 120V/240V, 1PH, 3W, 400A to 600A outdoor enclosure metering pedestal installation with separate instrument transformer cabinet - construction detail | 1 |
| MCS0098 | DER 120V/208Y or 347V/600Y, 3PH, 4W, 400A to 600A outdoor enclosure metering pedestal installation with separate instrument transformer cabinet – construction detail | 0 |
| MCS0102 | DER 120V/240V, 1PH, 3W, ≤200A, and 120V/208Y or 347V/600Y, 3PH, 4W, ≤200A placement of warning lamacoid and stickers – construction detail | 0 |
| MCS0104 | DER 120V/240V, 1PH, 3W, >400A, and 120V/208Y or 347V/600Y, 3PH, 4W, >200A placement of warning lamacoid and stickers – construction detail | 1 |
| MCS0105 | AGR/COM/DER/RES minimum clearances in front of revenue metering equipment – construction detail | 2 |
| MCS0106 | AGR/COM/DER/RES minimum clearance next to revenue metering equipment – construction detail | 5 |
Transfer trip installation details
Not prescribed by a Hydro Ottawa installation detail standard at this time; subject to engineering design and review.