|
Transformer Type |
|
|---|---|
|
Applicability |
Buildings with large electric service |
|
Definition |
Transformers can be classified as either dry type or liquid filled (usually oil). |
|
Units |
List (see above) |
|
Input Restrictions |
Transformers can be modeled or not at the discretion of the energy modeler. If they are more efficient than the requirements in Standard 90.1-2016, then they must be modeled in order to take credit. |
|
Baseline Rules |
If transformers are modeled in the proposed design, then they must also be modeled in the baseline building. |
|
Transformer Efficiency |
|
|---|---|
|
Applicability |
When transformers are modeled. |
|
Definition |
The efficiency expressed as a percent representing the |
|
Units |
Percent (%) |
|
Input Restrictions |
For new construction, transformers must meet the efficiency requirements in table 8.4.4 of Standard 90.1-2016. |
|
Baseline Rules |
Efficiency shall be taken from table 8.4.4. of Standard 90.1‑2016. |
| Transformer Type | |
|---|---|
| Applicability | Buildings with large electric service |
| Definition | Transformers can be classified as either dry type or liquid filled (usually oil) |
| Units | List: dry type, liquid filled |
| Input Restrictions | Transformers can be modeled or not at the discretion of the energy modeler. If they are more efficient than the requirements in Standard 90.1-2019, then they must be modeled in order to take credit. |
| Baseline Building | If transformers are modeled in the proposed design, then they must also be modeled in the baseline building |
| Transformer Efficiency | |
|---|---|
| Applicability | When transformers are modeled for the proposed design |
| Definition | The efficiency with which transformers transfer electricity from the grid to the building or from onsite generators to the grid. |
| Units | Percent (%) |
| Input Restrictions | For new construction, transformers must meet or exceed the efficiency requirements in Table 8.4.4 of Standard 90.1-2019 |
| Baseline Building | Efficiency shall be taken from Table 8.4.4. of Standard 90.1-2019 |
|
Transformer Type |
|
|---|---|
|
Applicability |
Buildings with large electric service |
|
Definition |
Transformers can be classified as either dry type or liquid filled (usually oil) |
|
Units |
List: dry type, liquid filled |
|
Input Restrictions |
Transformers can be modeled or not at the discretion of the energy modeler. If they are more efficient than the requirements in Standard 90.1-2022 Table 8.4.4, then they must be modeled in order to take credit. |
|
Baseline Building |
If transformers are modeled in the proposed design, then they must also be modeled in the baseline building. |
|
Transformer Efficiency |
|
|---|---|
|
Applicability |
When transformers are modeled for the proposed design |
|
Definition |
The efficiency with which transformers transfer electricity from the grid to the building or from onsite generators to the grid. |
|
Units |
Percent (%) |
|
Input Restrictions |
For new construction, transformers must meet or exceed the efficiency requirements in Table 8.4.4 of Standard 90.1-2022 |
|
Baseline Building |
G3.2 New Construction/Major Alterations Efficiency shall be taken from Table 8.4.4 of Standard 90.1‑2022. G3.3 Minor Alterations Transformers included in the scope of the retrofit should be modeled with an efficiency taken from Table 8.4.4 of Standard 90.1 2022. Otherwise, transformers should be modeled the same in the baseline and proposed. |