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HomeMy WebLinkAboutItem 6c. O-1730 Second Reading to adopt local amendments to the California Energy Code, codified under SLOMC Chapter 15.04.060 Item 6c Department: Administration Cost Center: 1005 For Agenda of: 10/3/2023 Placement: Consent Estimated Time: N/A FROM: Greg Hermann, Deputy City Manager Timmy Tway, Community Development Director Prepared By: Chris Read, Sustainability Manager Michael Loew, Chief Building Official SUBJECT: SECOND READING OF ORDINANCE NO. 1730 (2023 SERIES) TO ADOPT LOCAL AMENDMENTS TO THE CALIFORNIA ENERGY CODE RECOMMENDATION 1. Adopt Ordinance No. 1730 (2023 Series) entitled, “An Ordinance of the City Council of the City of San Luis Obispo, California, adopting Local Amendments to Part 6 of the Building Construction and Fire Prevention Code, 2023,” to be codified under San Luis Obispo Municipal Code Chapter 15.04.060 – “Amendments – Energy Standards”; and 2. Direct staff to submit the approved local amendments and accompanying required submittal forms and information to the California Energy Commission to initiate the local amendments to California Energy Code review and approval process. POLICY CONTEXT  Resolution 11159 (2020 Series) adopts a communitywide goal of carbon neutrality and a building sector goal of no net new increase of building GHG emissions as the result of new buildings starting in 2020.  Ordinance 1717 (2022 Series) adds Chapter 8.11 (All-Electric Buildings) to the Municipal Code requiring that all new buildings be all-electric, with certain limited exceptions.  Administrative Order 01 (2023 Series) pauses enforcement of Municipal Code Chapter 8.11 (All-Electric Buildings). Should the City resume enforcement of Chapter 8.11, as set forth in Administrative Order No. 01 (2023 Series), Chapter 8.11 will supersede Ordinance No. 1730.  2023-25 Financial Plan Climate Action Major City Goal 4.1.h directs staff to continue to monitor impacts to Municipal Code 8.11 (All‐Electric New Buildings), and if necessary, return to Council with an alternative approach to achieving the City's climate action goals as they relate to new buildings. Page 19 of 182 Item 6c DISCUSSION Background On September 19, 2023, the City Council voted 4-0 (Council Member Pease recused) to introduce Ordinance No. 1730, which provides local amendments (also referred to as a “reach code”) to the California Energy Code for the purpose of reducing energy use and reducing greenhouse gas emissions in support of the City’s climate action goals. The Ordinance is provided as Attachment A and includes additional efficiency standards for single-family residential buildings, multi-family buildings, and non-residential buildings. Public Resources Code Section 25402.1(h)(2) and Section 10-106 of the Building Energy Efficiency Standards establish a process that allows local adoption of energy standards that are more stringent than the statewide standards. Under this process, the C alifornia Energy Commission requires any local amendments to the California Energy Code that affect energy use in regulated buildings to be cost effective and use less energy than the standard requirements. At the September 19, 2023 meeting, Council found the amendments proposed in the Ordinance to reduce energy and to be cost effective.1 These findings were based on cost effectiveness studies conducted by the California Energy Codes and Standards Statewide Utility Program.2,3,4 Previous Council or Advisory Body Action Previous Council Action is described in detail in the September 19, 2023 Council Agenda Report. The ordinance proposed for adoption was introduced at the City Council meeting on September 19, 2023. Public Engagement The City conducted a public engagement process as outlined in the September 19, 2023 Council Agenda Report . Schedule and Next Steps Should Council approve staff’s recommendations, work would proceed on the timeline provided in the table below. It is important to note that the California Building Code, which includes the California Energy Code, is updated every three years. Should Council adopt staff’s recommendation, the local reach code would expire with the current Building Code on December 31, 2025. 1 The September 19, 2023 Council Agenda Report is available at: https://pub- slocity.escribemeetings.com/filestream.ashx?DocumentId=10192 2 The 2022 Cost-Effectiveness Study: Single Family New Construction Study is available at: https://pub- slocity.escribemeetings.com/filestream.ashx?DocumentId=10194 3 The 2022 Cost-Effectiveness Study: Multifamily New Construction Study is available at: https://pub- slocity.escribemeetings.com/filestream.ashx?DocumentId=10195 4 The 2022 Code: Non-Residential New Construction Reach Code Cost-Effectiveness Study is available at: https://pub-slocity.escribemeetings.com/filestream.ashx?DocumentId=10196 Page 20 of 182 Item 6c Task Timeframe Receive approval from the California Energy Commission November - December Reach code goes into effect January 1, 2024 CONCURRENCE Staff from Administration, Community Development, and the City Attorney’s Office concur with this report. ENVIRONMENTAL REVIEW Staff’s recommendations are found to be exempt from CEQA under the general rule, 15061(b)(3), because it can be seen with certainty that the provisions contained herein would not have the potential for causing a significant effect on the environment. Further, this ordinance is also exempt from CEQA under the categorical exemptions in Section 15308 of the CEQA Guidelines in that the proposed ordinance would institute regulatory requirements intended to protect the environment and natural resources. FISCAL IMPACT Budgeted: Yes Budget Year: 2023-24 Funding Identified: Yes Fiscal Analysis: Funding Sources Total Budget Available Current Funding Request Remaining Balance Annual Ongoing Cost General Fund $ $ $ $ State Federal Fees Other: Total $ $ $ $ The reach code requirements will be implemented through the development review and/or building permit review process. The staff time to review projects is already budgeted and is a core work task of the Community Development Department. This work can be directly supported by the 3C-REN Energy Code Coach Program, which provides technical support for code interpretation. Funded under the auspices of the California Public Utilities Commission, Energy Code Coach is free to the user and can be accessed by project applicants and City staff. Page 21 of 182 Item 6c ALTERNATIVES 1. Council could request more information, suggest changes, or request that the proposed local amendments to the California Energy Code be presented for adoption at a later date. Should Council pursue this alternative, staff requests specific direction and feedback. 2. Council could take no action and direct staff to pursue other initiatives. This action is not recommended by staff because it is inconsistent the City’s climate action goals and prior Council direction and adopted policy. ATTACHMENTS A - Ordinance No. 1730 (2023 Series) Page 22 of 182 O 1730 ORDINANCE NO. 1730 (2023 SERIES) AN ORDINANCE OF THE CITY COUNCIL OF THE CITY OF SAN LUIS OBISPO, CALIFORNIA, ADOPTING LOCAL AMENDMENTS TO PART 6 OF THE BUILDING CONSTRUCTION AND FIRE PREVENTION CODE, 2023 WHEREAS, greenhouse gas accumulation in the atmosphere as the result of human activity is the primary cause of the global climate crisis; and WHEREAS, in California alone, the initial impacts of climate change have resulted in unprecedented disasters with tremendous human, economic, and environmental costs ; and WHEREAS, the Intergovernmental Panel on Climate Change estimates that global emissions need to be reduced by 45 percent from 2010 levels by 2030, and 100 percent by 2050 to prevent global catastrophe; and WHEREAS, the State of California enacted Assembly Bill (AB) 1279 to require statewide carbon neutrality "as soon as possible," but no later than 2045; and WHEREAS, City of San Luis Obispo residents and businesses have repeatedly identified climate action as a top community priority; and WHEREAS, Resolution 11159 (2020 Series) adopts the City of San Luis Obispo Climate Action Plan for Community Recovery, which includes a communitywide goal of carbon neutrality by 2035 and sector specific goal of no net new building emissions from onsite energy use by 2020; and WHEREAS, Resolution 11381 (2022 Series) reaffirmed the communitywide goal of carbon neutrality by 2035 and sector specific goal of no net new building emissions from onsite energy use by 2020; and WHEREAS, the inventoried greenhouse gas emissions in the City of San Luis Obispo come from a variety of sources, primarily transportation and energy use in buildings and facilities; and WHEREAS, in order to achieve carbon neutrality, new sources of greenhouse gas emissions need to be substantially reduced or eliminated; and WHEREAS, Public Resources Code Section 25402.1 (h)(2) allows local agencies to adopt more stringent local amendments to the energy conservation provisions in the California Energy Code; and Page 23 of 182 Ordinance No. 1730 (2023 Series) Page 2 O 1730 WHEREAS, the California Energy Codes and Standards Statewide Utility Program, has determined specific modifications to the 2022 State Energy Code for each climate zone that are cost-effective; and that such modifications will result in designs that consume less energy than they would under the 20 22 State Energy Code; and WHEREAS, staff has reviewed the "2022 Cost-Effectiveness Study: Single Family New Construction Study" and associated study data, the “2022 Cost-Effectiveness Study: Multifamily New Construction Study” and associated study data, and the “2022 Code: Non-Residential New Construction Reach Code Cost-Effectiveness Study” and associated data developed for the California Energy Codes and Standards Statewide Utility Program, and find them sufficient to illustrate compliance with the requirements set forth under California Administrative Code Chapter 10-106; and WHEREAS, based on these studies, the City finds the proposed local amendments to the 2022 California Energy Code to be cost-effective and consume less energy than permitted by Title 24, Part 6; and WHEREAS, the 2022 California Energy Code offers compliance options that were established through the public rulemaking process of the code update; and WHEREAS, the Council expressly declares that the proposed amendments to the Energy Code are reasonably necessary because of local climatic, topological, and geological conditions; and WHEREAS, the requirements specified in this Ordinance were reviewed via public comment and through a publicly noticed public hearing process. NOW, THEREFORE, BE IT ORDAINED by the Council of the City of San Luis Obispo as follows: SECTION 1. Purpose. It is the purpose and intent of this Ordinance to establish standards for new buildings to exceed minimum 20 22 Title 24 Part 6 requirements. SECTION 2. Adoption. The local amendments to Part 6 of the City of San Luis Obispo Building Construction and Fire Prevention Code, 2023 (SLOMC Section 15.02.060) as specified in Exhibit A, are hereby adopted by the City of San Luis Obispo to be codified under Chapter 15.04.060. The Council hereby adopts the recitals herein as separate and additional findings of fact in support of adoption of the ordinance. SECTION 3. Relationship to Administrative Order 01 (2023 Series) and Supersedure by Municipal Code Chapter 8.11. By its terms, Administrative Order 01 (2023 Series), which paused enforcement of the City’s all-electric new building requirement (SLOMC Chapter 8.11), is rescinded upon any judicial decision which overturns or otherwise vacates the Ninth Circuit panel ruling issued in California Restaurant Association v. City of Berkeley. Should this occur, enforcement of Chapter 8.11 will resume, and enforcement of Section 15.04.060 as adopted herein will be suspended. Page 24 of 182 Ordinance No. 1730 (2023 Series) Page 3 O 1730 SECTION 4. Severability. If any word, phrase sentence part, section, subsection or other portion of this amendment or any application thereof to any person or circumstance is declared void, unconstitutional, or invalid for any reason, then such word, phrase, sentence, part, section, subsection, or other portion, or the prescribed application thereof, shall be severable, and the remaining provisions of this amendment, and all applications thereof, not having been declared void, unconstitutional or invalid, shall remain in full force and effect. The City of San Luis Obispo hereby declares that it would have passed this amendment and each section, subsection sentence, clause and phrase of this amendment, irrespective of the fact that any one or more sections, subsection, sentences, clauses or phrases is declared invalid or unconstitutional. SECTION 5. Findings. The City Council finds that each of the changes or modifications to measures referred to therein are reasonably necessary because of local climatic, geological, or topographical conditions in the area encompassed by the boundaries of the City of San Luis Obispo, and the City Council adopts the following findings in support of local necessity for the changes or modifications: 1. San Luis Obispo is situated along a wildland -urban interface and has been identified as a Community at Risk from wildfire and is extremely vulnerable to wildfires and firestorms, and human activities releasing greenhouse gases into the atmosphere cause increases in worldwide average temperature, drought conditions, vegetative fuel, and length of fire seasons - contributing to the likelihood and consequences of fire. 2. The City of San Luis Obispo is situated at the base of a watershed of the Santa Lucia Mountains and flooding of San Luis, Chorro, Stenner, Old Garden, and Brizzolara Creeks results in conditions rendering fire department vehicular traffic unduly burdensome or impossible, as witnessed in major floods that occurred in 1952, 1961, 1969, 1973, 1978, 1982, 1995 , and 2023. Furthermore, flood conditions described above create the potential for overcoming the ability of the fire department to aid or assist in fire control, evacuations, rescues and other emergency task demands inherent in such situations. The resulting overburdening of fire department personnel may cause a substantial or total lack of protection against fire for the buildings and structures located in the City of San Luis Obispo. The afore-described conditions support the imposition of fire protection requirements greater than those set forth in the California State Building Standards Code and support the imposition of more restrictive requirements than set forth in the California Energy Code for the purpose of reducing the City's contributions to Greenhouse Gas Emissions resulting in a warming climate and related severe weather events. 3. The aforementioned flood and rain events result in conditions wherein stormwater can inundate the wastewater treatment system as witnessed in major floods that occurred in 1952, 1961, 1969, 1973, 1978, 1982, an d 1995. Furthermore, rain events and flood conditions described above create a condition referred to as Inflow and Infiltration (I/I) that allow rain and flood waters to flow and/or seep into the wastewater system and overcome the ability Page 25 of 182 Ordinance No. 1730 (2023 Series) Page 4 O 1730 of the wastewater collection system and Water Reclamation Facility (WRF) to convey and treat sewage. The resulting overburdening of the wastewater system can result in threats to public health, public and private property and water quality and violations and fines from the State of California, the Environmental Protection Agency (EPA) or others. To the extent that climate change has the potential to make these conditions worse, more restrictive Energy Code requirements to achieve reduced greenhouse gas emissions are necessary. 4. Seasonal climatic conditions during the late summer and fall create numerous serious difficulties in the control and protection against fire situations in the City of San Luis Obispo. The hot, dry weather in combination with Santa Lucia (offshore) winds frequently results in wildland fires in the brush-covered slopes on the Santa Lucia Mountains, San Luis Mountain, and the Irish Hills areas of the City of San Luis Obispo. The aforementioned areas surround the City. When a fire occurs in said areas, such as occurred in 1985 when the Los Pilitas fire burned six days and entered the City and damaged many structures, the entirety of local fire department personnel is required to control, monitor, fight and protect against such fire situations in an effort to protect life and preserve property and watershed land. The same climatic conditions may result in the concurrent occurrence of one or more fires in the more populated areas of the City without adequate fire department personnel to protect against and cont rol such a situation. Therefore, the above -described findings support the imposition of measures to increase the efficiency of new buildings in the City to reduce greenhouse gas emissions. SECTION 6. CEQA. This ordinance is categorically exempt from CEQA because it is an action taken by a regulatory agency for the purpose of protecting the environment (CEQA Guidelines Section 15308). In addition, this ordinance is exempt from CEQA under the general rule, 15061(b)(3), on the grounds that these standards are more stringent than the State energy standards, there are no reasonably foreseeable adverse impacts, and there is no possibility that the activity in question may have a significant effect on the environment. The following findings are made in support of these determinations: 1. The purpose of the implementation of a Reach Code is to reduce the amount of greenhouse gas emissions in the City of San Luis Obispo that are produced from buildings. 2. The Reach Code approval process requires that the City determines that the local standards will require buildings to use no more energy than current statewide requirements. Furthermore, the California Energy Commission approval process requires that the City make the findings as part of its approval process. Therefore, the Reach Code standards can only go into effect if they protect the environment by making buildings more efficient. Page 26 of 182 Ordinance No. 1730 (2023 Series) Page 5 O 1730 SECTION 7. Violations. Violation of the requirements of this Ordinance shall be considered, at the City’s election, an infraction of the City of San Luis Obispo Municipal Code punishable by all sanctions prescribed in Chapter 1.12, or an administrative violation punishable as provided under Chapter 1.24 . SECTION 8. Effective Date. This Ordinance shall be effective as of January 1, 2024. SECTION 9. Ordinance Summary. A summary of this ordinance, together with the names of Council members voting for and against, shall be published at least five (5) days prior to its final passage, in The New Times, a newspaper published and circulated in this City. This ordinance shall go into effect at the expiration of thirty (30) days after its final passage. INTRODUCED on the 19th day of September 2023, AND FINALLY ADOPTED by the Council of the City of San Luis Obispo on the ____ day of ___________, 2023, on the following vote: AYES: NOES: ABSENT: ___________________________ Mayor Erica A. Stewart ATTEST: _______________________ Teresa Purrington City Clerk APPROVED AS TO FORM: _______________________ J. Christine Dietrick City Attorney IN WITNESS WHEREOF, I have hereunto set my hand and affixed the official seal of the City of San Luis Obispo, California, on ______________________. ___________________________ Teresa Purrington, City Clerk Page 27 of 182 Ordinance No. 1730 (2023 Series) Page 6 O 1730 Exhibit A Section 15.04.060 AMENDMENTS - ENERGY STANDARDS A. Adoption of Codes and Applicability The effective date of this ordinance shall be January 1, 2024 and is applicable to newly constructed buildings and facilities, and those that are built after a demolition. The minimum energy compliance margin standards established in this code shall apply to all applicable buildings accordingly. The amendments contained in 15.04.060 do not apply to additions, alterations, or repairs to buildings or facilities constructed prior to the effective date of this ordinance. B. Add Item D to Subchapter 1, Section 100.0(e)3, to read as follows: D. Prohibited reduction in source energy performance. No repair, addition, or alteration shall reduce the efficiency of any building or facility, as determined by the source energy compliance margin. C. Add the following definition to Subchapter 1, Section 100.1(b): DEMOLITION is the act of reconstructing, removing, taking down or destroying all or portions of an existing building or structure, or making extensive repairs or modifications to an existing building or structure, if such changes involve removal or replacement of fifty percent or more of both the structural framing a nd cladding or of the exterior walls within a twenty-four-month period. When determining whether a building or structure is demolished, the following applies: 1. The nonconforming portions of any wall are counted as removed or taken down, even when retention of these portions is proposed. 2. Any continuous run of remaining exterior wall surfaces measuring ten feet or less in length are counted as removed or replaced. D. Add Section 120.11 to Subchapter 3, to read as follows: 120.11 Electric Readiness Requirements for All Systems Where nonresidential systems using gas or propane are installed, the construction drawings shall indicate a pathway for routing of conduit from the equipment using gas or propane to the point of interconnection with the electrical service. E. Delete Section 140.1 from Subchapter 5, and replace with new Section 140.1 to read as follows: A building complies with the performance approach provided that: 1. The TDV energy budget calculated for the Proposed Design Building under Subsection (b) is no greater than the TDV energy budget calculated for the Standard Page 28 of 182 Ordinance No. 1730 (2023 Series) Page 7 O 1730 Design Building under Subsection (a), and 2. The energy budget calculated for the proposed design building under Subsection (b) has a source energy compliance margin, relative to the energy budget calculated for the standard design building under Subsection (a), of at least 7 percent for all nonresidential occupancies. Exception to Section 140.1 item 2. A source energy compliance margin of at least 7 percent is not required when nonresidential occupancies are designed with single zone space-conditioning systems complying with Section 140.4(a)2. (a) Energy budget for the standard design building. The energy budget for the Standard Design Building is determined by applying the mandatory and prescriptive requirements to the proposed design building. The energy budget is the sum of the TDV energy for space-conditioning, indoor lighting, mechanical ventilation, photovoltaic (PV) and battery storage systems, service water heating and covered process loads. (b) Energy budget for the proposed design building. The energy budget for a proposed design building is determined by calculating the TDV energy for the proposed design building. The energy budget is the sum of the TDV energy for space-conditioning, indoor lighting, mechanical ventilation, photovoltaic (PV) and battery storage systems, and service water heating and covered process loads. Exception to Section 140.1(b). A community shared solar electric generation system, or other renewable electric generation system, and/or community shared battery storage system, that provides dedicated power, utility energy reduction credits or payments for energy bill reductions to the permitted building and is approved by the Energy Commission as specified in Title 24, Part 1, Section 10 - 115, may offset part or all of the solar electric generation system or battery storage system TDV energy required to comply with the standards, as calculated according to methods established by the Commission in the Nonresidential ACM Reference Manual. (c) Calculation of energy budget. The TDV energy for both the standard design building and the proposed design building shall be computed by compliance software certified for this use by the Commission. The processes for compliance software approval by the Commission are documented in the ACM Approval Manual. Note: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code. Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5, 25402.8, and 25943, Public Resources Code. G. Amend Subchapter 8, Section 150.1(b) to read as follows, with items 2 and 3 to remain: Page 29 of 182 Ordinance No. 1730 (2023 Series) Page 8 O 1730 (b) Performance Standards. A building complies with the performance standards if the energy consumption calculated for the proposed design building is no greater than the energy budget calculated for the standard design building using Commission - certified compliance software as specified by the Alternative Calculation Methods Approval Manual, and as specified in items 1, 2 and 3 below. 1. Newly Constructed Buildings. The Energy Budget for newly constructed buildings is expressed in terms of the Energy Design Ratings, which are based on source energy and time -dependent valuation (TDV) energy. The Energy Design Rating 1 (EDR1) is based on source energy. The Energy Design Rating 2 (EDR2) is based on TDV energy and has two components, the Energy Efficiency Design Rating, and the Solar Electric Generation and Demand Flexibility Design Rating. The total Energy Design Rating shall account for both the Energy Efficiency Design Rating and the Solar Electric Generation and Demand Flexibility Design Rating. The proposed building shall separately comply with the Source Energy Design Rating, Energy Efficiency Design Rating and the Total Energy Design Rating. A newly constructed building complies with the performance approach if the TDV energy budget calculated for the proposed design building is no greater than the TDV energy budget calculated for the Standard Design Building AND the Source Energy compliance margin is at least 6, relative to the Source Energy Design Rating 1 calculated for the Standard Design building. EXCEPTION 1 to Section 150.1(b)1. A community shared solar electric generation system, or other renewable electric generation system, and/or community shared battery storage system, which provides dedicated power, utility energy reduction credits, or payments for ene rgy bill reductions, to the permitted building and is approved by the Energy Commission as specified in Title 24, Part 1, Section 10-115, may offset part or all of the solar electric generation system Energy Design Rating required to comply with the Standards, as calculated according to methods established by the Commission in the Residential ACM Reference Manual. EXCEPTION 2 to Section 150.1(b)1. A newly constructed building that does not require a PV system in accordance with section 150.1(c)14 does not need a Source Energy compliance margin of at least 6, relative to the Source Energy Design Rating 1 calculated for the Standard Design building. I. Add Section 160.9(d), to read as follows: 160.9(d) Central Water Heater Readiness Where a multi-family central water heating system using gas or propane is installed, the construction drawings shall indicate a pathway for routing of conduit from the equipment using gas or propane to the point of interconnection with the electrical service. Page 30 of 182 Ordinance No. 1730 (2023 Series) Page 9 O 1730 J. Amend Subchapter 11, Section 170.1, paragraph 1, to read as follows: A building complies with the performance approach if the TDV energy budget calculated for the proposed design building under Subsection (b) is no greater than the TDV energy budget calculated for the Standard Design Building under Subsection (a). Additionally: 1. The source energy budget of a newly constructed multifamily building (with three or less habitable stories) shall be at least 9% lower than that of the Standard Design Building. 2. The source energy budget of newly constructed multifamily buildings (with four or more habitable stories) shall be at least 3% lower than that of the Standard Design Building. Page 31 of 182 Page 32 of 182 City of San Luis Obispo, Council Memorandum Council Agenda Report Memo DATE: October 19, 2023 FROM: Chris Read, Sustainability Manager SUBJECT: ADOPTION OF LOCAL AMENDMENTS TO THE CALIFORNIA ENERGY CODE On September 19, 2023, staff presented an energy reach code to Council for approval. As part of that Council Agenda Report1, staff provided a summary of cost analysis findings and references to cost effectiveness studies and data. Since the associated data was in an Excel based format, it was not archived. This memo archives the data sets by adding cell references to the previous in-text cost effectiveness descriptions (in red) and a screen shot of the data set. The first findings are related to single-family homes and comes from the following data set: https://localenergycodes.com/download/1286/file_path/fieldList/2022SingleFamily NewConStudyData.xlsx. A screen shot of the sorted data is available as Figure 1, with the relevant rows highlighted in yellow. 1. Requiring new single-family residential buildings to achieve an EDR1 margin over the standard building by 6 or more points. As illustrated in the study data, an all- electric single-family home with additional efficiency measures would save energy relative to the base code and would achieve an EDR1 margin of 7.1 (Cell R303) and a benefit to cost ratio of 12.6 (Cell U303) on a TDV basis. The study data also shows that a mixed-fuel building with additional efficiency measures, additional rooftop solar, and a battery storage system would save energy relative to the base code and would achieve and EDR1 margin of 18.6 (Cell R95) and a benefit to cost ratio of 1.2 (Cell U95) on a TDV basis. It should be noted that an all-electric building built to minimum code standards using typically available appliances would achieve an EDR margin of 6. 1 Item 7b. Introduce an Ordinance approving Local Amendments to the California Energy Code, codified under SLOMC Chapter 15.04.060 (Amendments - Energy Standards), available at the following link: https://opengov.slocity.org/WebLink/DocView.aspx?id=181457&dbid=0&repo=CityClerk Adoption of Local Amendments to the California Energy Code Page 2 Figure 1. Single Family Cost Effectiveness Findings The second and third findings are related to low-rise and high-rise multi-family buildings and comes from the following data set: https://localenergycodes.com/download/1564/file_path/fieldList/2022MultifamilyNewCon structionStudyData.xlsx. A screen shot of the sorted data is available as Figure 2, with the relevant rows highlighted in yellow. 2. Requiring low rise multi-family buildings to achieve a Source Energy savings 9% or more. As illustrated in the study data, an all-electric low rise multi-family building built to minimum code standards would achieve a Source Energy margin of 9% (Cell AI47) and a benefit to cost ratio of 9.2 (Cell T47) on a TDV basis. The study data also shows that a mixed-fuel building with additional efficiency measures, additional rooftop solar, and a battery storage system would save energy relative to the base code, would achieve a Source Energy margin of 18% (Cell AI138) and would achieve a benefit to cost ratio of 1.6 (Cell T 138) on a TDV basis. Adoption of Local Amendments to the California Energy Code Page 3 3. Requiring high-rise multi-family buildings to achieve a Source Energy savings of 3% or more. As illustrated in the study data, an all-electric high rise multi-family building built to minimum code standards would achieve a Source Energy margin of 6% (Cell AI91) and a benefit to cost ratio of 2.2 (Cell T91) on a TDV basis. The study data also shows that a mixed -fuel building with additional efficiency measures, additional rooftop solar, and a battery storage system would save energy relative to the base code, would achieve a Source Energy margin of 3% (Cell AI159), and would achieve a benefit to cost score of 3.3 (Cell T159) on a TDV basis. Figure 2. Multi-Family Cost Effectiveness Findings The fourth set of findings are related to non -residential buildings and comes from the following data set: https://localenergycodes.com/download/1373/file_path/fieldList/2022 NonresidentialNewConstructionStudyData.xlsx. These findings are more complicated and include additional calculations conducted by the City’s technical consultant, TRC Companies, Inc. 4. Requiring non-residential buildings to achieve a Source Energy budget savings of 7%. The Non-Residential New Construction Reach Code Cost-effectiveness Study provides analysis for several non-residential building prototypes. One of the prototypes is a retail building, which prescriptively requires electric heat pump Adoption of Local Amendments to the California Energy Code Page 4 space conditioning and along with other similar small-to-medium non-residential buildings that prescriptively require electric space conditioning, would be exempt from the reach code (see footnote 8, above). As illustrated in the study data for the remaining non-residential building prototypes, all-electric new non-residential buildings built to minimum code standards meet or exceed the 7% compliance margin. Mixed-fuel non-residential buildings with various additional energy efficiency measures and rooftop solar, would meet or exceed the 7% compliance margin, save energy relative to the base code, and are cost effective on a TDV basis.2 These findings are illustrated in Figure 3, with findings related to Quick Service Restaurants described in detail in footnote 2. Figure 3. Source Energy Results for Medium Office (MO) and Small Hotel (SH) 2 In addition to the study data posted on the California Energy Codes and Standards Statewide Program website, staff requested that TRC (the technical consultants that produced the Non -Residential New Construction Reach Code Cost-Effectiveness study) conduct additional model runs to identify cost effective measure packages for the “Quick Service Restaurant” building prototype. TRC found that a mixed -fuel Quick Service Restaurant with additional efficiency measures and a 4kW solar array would save energy relative to the base code, achieve a Source Energy compliance margin of 8.9%, and would be cost effective on a TDV basis with a benefit to cost ratio of 1.7.