Statutes, codes, and regulations
District Of Columbia Administrative Code
Title 12 - CONSTRUCTION CODES SUPPLEMENT OF 2017Subtitle 12-I - ENERGY CONSERVATION CODE SUPPLEMENT OF 2017- COMMERCIAL PROVISIONS (12-I[CE] DCMR)
Section 12-I13 - RENEWABLE ENERGY
Section 12-I13.1 - PRESCRIPTIVE RENEWABLE PATH

D.C. Mun. Regs. tit. 12, 12-I13.1

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Current through Register Vol. 71, No. 49, December 6, 2024
Section 12-I13.1 - PRESCRIPTIVE RENEWABLE PATH
13.1.1

On-Site Renewable Energy Systems. Building projects shall comply with either the Standard Renewables Approach in Section 13.1.1.1 or the Alternate Renewables Approach in Section 13.1.1.2 where any of the following conditions are met:

1. New construction of 10,000 sf (929 m2) or greater, not including first time tenant fit-outs within a newly constructed core and shell building/space.
2. Additions of 10,000 sf (929 m2) or greater.
3.Alteration area of 10,000 sf (929 m2) or greater in Level 3 alteration.
4. Combined Level 3 alteration and addition area of 10,000 sf (929 m2) or greater.

Exceptions: Buildings that demonstrate compliance with both of the following conditions are not required to contain on-site renewable energy systems:

1. An annual daily average incident solar radiation available to a flat plate collector oriented due south at an angle from horizontal equal to the latitude of the collector location less than 4.0 kWh/ m ·day (1.2 kBtu/ft /day), accounting for existing buildings, permanent infrastructure that is not part of the building project, topography, and trees.
2. A commitment to purchase renewable electricity products complying with the Green-e Energy National Standard for Renewable Electricity Products of at least 7 kWh/ft (75 2 kWh/m) of conditioned space each year until the cumulative purchase totals 70 kWh/ft 2 (750 kWh/m2) of conditioned space.
13.1.1.1

Standard Renewables Approach: Baseline On-Site Renewable Energy Systems.Building projects shall contain on-site renewable energy systems that provide the annual energy production equivalent of not less than 6.0 kBtu/ ft2 (20 kWh/m2 ) multiplied by the gross roof area in ft2 (m2) for single-story buildings, and not less than 10.0 kBtu/ft (32 kWh/m) multiplied by the gross roof area in ft (m) for all other buildings. The annual energy production shall be the combined sum of all on-site renewable energy systems.

13.1.1.2

Alternate Renewables Approach: Reduced On-Site Renewable Energy Systems and Higher-Efficiency Equipment.Building projects complying with this approach shall comply with the applicable equipment efficiency requirements in Normative Appendix B of ASHRAE 189.1 (Prescriptive Equipment Efficiency Tables for the Alternate Reduced Renewables and Increased Equipment Efficiency Approach in Section 7.4.1.1.2), the water-heating efficiency requirements in Section 7.4.4.1 of ASHRAE 189.1, equipment efficiency requirements in Section 10.6 of ASHRAE 189.1, ® and the applicable ENERGY STAR requirements in Section 10.11.2 of 189.1, and shall contain on-site renewable energy systems that provide the annual energy production equivalent of not less than 4.0 kBtu/ft (13 kWh/m) multiplied by the gross roof area in ft (m) for single-story buildings, and not less than 7.0 kBtu/ft (22 kWh/m) multiplied by the gross roof area in ft (m ) for all other buildings. The annual energy production shall be the combined sum of all on-site renewable energy systems. For equipment listed in Section 10.11.2 of ASHRAE 189.1 that is also contained in Normative Appendix B of ASHRAE 189.1, the installed equipment shall comply by meeting or exceeding both requirements.

Exception: If building project includes less than 75% of build-out of net-occupiable floor area, then the project team cannot use Alternate Renewables Approach in 13.1.1.2, and shall use the Standard Renewables Approach in 13.1.1.1.

D.C. Mun. Regs. tit. 12, 12-I13.1

Final Rulemaking published at 67 DCR 5679 (5/29/2020)