Approaches to cost-effective near-net zero energy new homes with time-of-use value of energy and battery storage
California requires all new residential buildings to meet near-net zero energy building (near-NZEB) targets in its building energy efficiency standards (Title 24) starting January 2020. For the first time, rooftop solar PV is required in new homes under three stories tall. While individual technolog...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-05-01
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| Series: | Advances in Applied Energy |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666792421000111 |
| _version_ | 1818664064673382400 |
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| author | Max Wei Sang Hoon Lee Tianzhen Hong Brian Conlon Lucy McKenzie Bob Hendron Alea German |
| author_facet | Max Wei Sang Hoon Lee Tianzhen Hong Brian Conlon Lucy McKenzie Bob Hendron Alea German |
| author_sort | Max Wei |
| collection | DOAJ |
| description | California requires all new residential buildings to meet near-net zero energy building (near-NZEB) targets in its building energy efficiency standards (Title 24) starting January 2020. For the first time, rooftop solar PV is required in new homes under three stories tall. While individual technologies are available for energy efficiency and renewable energy, significant challenges exist for scaling up NZEB homes across the State of California. This study presents a novel and holistic modeling and cost-effective analysis of new single-family homes in California to inform the design of cost-effective near-NZEB homes, as well as to guide future updates of Title 24. California's NZEB homes are defined using the time dependent valuation methodology to evaluate their cost-effectiveness. A comprehensive set of energy efficiency measures, solar PV, and battery storage are considered in the modeling and analysis as well as different net-metering policies for rooftop PV compensation rates for exported power. The BEopt tool with the EnergyPlus simulation engine is used to model and optimize, based on cost, the building designs for all-electric and mixed-fuel single-family homes across all 16 California climate zones. Results show that optimal designs of near-NZEB single-family homes have lower lifecycle costs for both all-electric and mixed-fuel cases in all California climate zones than the 2020 baseline code-compliant homes. Cost-optimal designed all-electric homes are comparable in lifecycle costs to mixed-fuel homes in most climate zones in part because no natural gas infrastructure is needed. For battery storage, electricity rates with a greater degree of time-dependence will improve cost-effectiveness of near-NZEB or full NZEB homes. These findings provide technical and investment insights into the scale up of cost-effective near-NZEB home design in California. The methodology and models can be adopted for other U.S. states or international cities to inform policy making and design of near-net zero energy residential buildings. |
| first_indexed | 2024-12-17T05:26:48Z |
| format | Article |
| id | doaj.art-e0500685c57c41c583b446a530220f77 |
| institution | Directory Open Access Journal |
| issn | 2666-7924 |
| language | English |
| last_indexed | 2024-12-17T05:26:48Z |
| publishDate | 2021-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Advances in Applied Energy |
| spelling | doaj.art-e0500685c57c41c583b446a530220f772022-12-21T22:01:50ZengElsevierAdvances in Applied Energy2666-79242021-05-012100018Approaches to cost-effective near-net zero energy new homes with time-of-use value of energy and battery storageMax Wei0Sang Hoon Lee1Tianzhen Hong2Brian Conlon3Lucy McKenzie4Bob Hendron5Alea German6Energy Technologies Area, Lawrence Berkeley National Laboratory, California, United States; Corresponding author.Energy Technologies Area, Lawrence Berkeley National Laboratory, California, United StatesEnergy Technologies Area, Lawrence Berkeley National Laboratory, California, United StatesEnergy and Environmental Economics, Inc., United StatesEnergy and Environmental Economics, Inc., United StatesFrontier Energy, United StatesFrontier Energy, United StatesCalifornia requires all new residential buildings to meet near-net zero energy building (near-NZEB) targets in its building energy efficiency standards (Title 24) starting January 2020. For the first time, rooftop solar PV is required in new homes under three stories tall. While individual technologies are available for energy efficiency and renewable energy, significant challenges exist for scaling up NZEB homes across the State of California. This study presents a novel and holistic modeling and cost-effective analysis of new single-family homes in California to inform the design of cost-effective near-NZEB homes, as well as to guide future updates of Title 24. California's NZEB homes are defined using the time dependent valuation methodology to evaluate their cost-effectiveness. A comprehensive set of energy efficiency measures, solar PV, and battery storage are considered in the modeling and analysis as well as different net-metering policies for rooftop PV compensation rates for exported power. The BEopt tool with the EnergyPlus simulation engine is used to model and optimize, based on cost, the building designs for all-electric and mixed-fuel single-family homes across all 16 California climate zones. Results show that optimal designs of near-NZEB single-family homes have lower lifecycle costs for both all-electric and mixed-fuel cases in all California climate zones than the 2020 baseline code-compliant homes. Cost-optimal designed all-electric homes are comparable in lifecycle costs to mixed-fuel homes in most climate zones in part because no natural gas infrastructure is needed. For battery storage, electricity rates with a greater degree of time-dependence will improve cost-effectiveness of near-NZEB or full NZEB homes. These findings provide technical and investment insights into the scale up of cost-effective near-NZEB home design in California. The methodology and models can be adopted for other U.S. states or international cities to inform policy making and design of near-net zero energy residential buildings.http://www.sciencedirect.com/science/article/pii/S2666792421000111Net zero energy buildings (NZEB)Building decarbonizationElectrificationEnergy efficiencyCost-effectivenessOptimization |
| spellingShingle | Max Wei Sang Hoon Lee Tianzhen Hong Brian Conlon Lucy McKenzie Bob Hendron Alea German Approaches to cost-effective near-net zero energy new homes with time-of-use value of energy and battery storage Advances in Applied Energy Net zero energy buildings (NZEB) Building decarbonization Electrification Energy efficiency Cost-effectiveness Optimization |
| title | Approaches to cost-effective near-net zero energy new homes with time-of-use value of energy and battery storage |
| title_full | Approaches to cost-effective near-net zero energy new homes with time-of-use value of energy and battery storage |
| title_fullStr | Approaches to cost-effective near-net zero energy new homes with time-of-use value of energy and battery storage |
| title_full_unstemmed | Approaches to cost-effective near-net zero energy new homes with time-of-use value of energy and battery storage |
| title_short | Approaches to cost-effective near-net zero energy new homes with time-of-use value of energy and battery storage |
| title_sort | approaches to cost effective near net zero energy new homes with time of use value of energy and battery storage |
| topic | Net zero energy buildings (NZEB) Building decarbonization Electrification Energy efficiency Cost-effectiveness Optimization |
| url | http://www.sciencedirect.com/science/article/pii/S2666792421000111 |
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