[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-672629-105":59,"doc-detail-672629-en":129},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":122,"head_meta":124,"extra_data":126,"updated_unix":128},105,"en","enphase-solar-only-systems-and-tesla-powerwall-2-with-backup-eps-tech-brief","Enphase Solar Only systems and Tesla Powerwall 2 with backup (EPS) - Tech Brief","","Technical brief detailing three deployment scenarios combining an Enphase Solar Only system with a Tesla Powerwall 2 to maintain solar generation during backup mode when sufficient sunlight is available. Focuses only on backup operation, excluding non-backup configurations. Covers single-phase, three-phase, and multi-phase partial backup setups, including required gateway models, grid profile selection (AS/NZS 4777.2:2020), PV inverter capacity limits on the gateway load side, and guidance on ferrite core installation to mitigate noise affecting Enphase PLC communications.",{"@graph":69,"@context":121},[70,84,104],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/enphase-solar-only-systems-and-tesla-powerwall-2-with-backup-eps-tech-brief/672629/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":98,"encodingFormat":97,"isAccessibleForFree":99,"interactionStatistic":100},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/enphase-solar-only-systems-and-tesla-powerwall-2-with-backup-eps-tech-brief/672629.png","ImageObject",300,407,{"name":92,"@type":93},"Aurelia","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-02",true,{"@type":101,"interactionType":102,"userInteractionCount":14},"InteractionCounter",{"@type":103},"ViewAction",{"@type":105,"mainEntity":106},"FAQPage",[107,113,117],{"name":108,"@type":109,"acceptedAnswer":110},"What does this technical brief cover about Enphase Solar Only and Tesla Powerwall 2?","Question",{"text":111,"@type":112},"It investigates three scenarios where Enphase Solar Only is deployed with Tesla Powerwall 2 to ensure solar produces power in backup mode with sufficient sunlight. It addresses backup situations only.","Answer",{"name":114,"@type":109,"acceptedAnswer":115},"Which grid profile is recommended for the single-phase scenario?",{"text":116,"@type":112},"The correct grid profile is the standard AS/NZS 4777.2:2020 (Region A/B/C/NZ) grid profile, selected for correct frequency shift and power control parameters.",{"name":118,"@type":109,"acceptedAnswer":119},"Why are ferrite cores recommended with Powerwall 2 backup systems?",{"text":120,"@type":112},"Powerwall 2 is an AC-coupled battery with an internal DC-to-AC inverter, so site noise may affect Enphase PLC between the IQ Gateway and microinverters. The brief recommends one TDK ferrite core per Powerwall 2 up to a stated maximum.","https://schema.org",{"og:url":83,"og:type":123,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":125,"canonical":83},"index,follow",{"doc_id":127,"site_id":62},672629,1793601185,{"code":4,"msg":5,"data":130},{"doc_id":127,"user_id":131,"nickname":92,"user_avatar":132,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":133,"file_id":134,"file_url":135,"file_type":136,"file_size":137,"view_count":14,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":44,"language":138,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":139,"faqs":140,"seo_title":141,"seo_description":67,"update_tm":128,"read_time":142},1099514068365,"https://ap-avatar.wpscdn.com/avatar/10000253d8d9f28188e?_k=1776742907772140068","Enphase Solar Only systems and Tesla Powerwall 2 with backup (EPS)  \nContents  \nEnphase Solar Only systems and Tesla Powerwall 2 with backup (EPS) ..........................................................3  \nScenario 1: Single-phase site with single-phase Enphase Solar Only system installed on the backup circuit ..................................................................................................................................................................... 3  \nScenario 2: Three-phase site with three-phase Enphase Solar Only system installed on the backup circuit ..................................................................................................................................................................... 5  \nScenario 3: Multiple-phase site with multi-phase Enphase Solar Only system partially installed on the backup circuit ....................................................................................................................................................... 7  \nRevision history......................................................................................................................................................... 9  \nEnphase Solar Only systems and Tesla Powerwall 2 with backup (EPS)  \nThis technical brief investigates three different scenarios where an Enphase Solar Only system is deployed with a Tesla Powerwall 2 to ensure the solar will produce power in backup mode (with sufficient sunlight). The technical brief only considers backup situations, as non-backup situations will be a similar setup but without the inclusion of the Tesla Gateway and will, therefore, not affect the design and deployment of the Enphase Solar Only system.  \nThe three scenarios that are detailed within this technical brief are:  \n• Single-phase site with single-phase Enphase Solar Only system installed on the backup circuit  \n• Three-phase site with three-phase Enphase Solar Only system installed on the backup circuit  \n• Multiple-phase site with multi-phase Enphase Solar Only system partially installed on the backup circuit  \nNOTE: The Tesla Powerwall 2 is an AC-coupled battery that incorporates a DC-to-AC inverter within the battery. Therefore, site noise that affects the Enphase PLC between IQ Gateway and microinverters could become an issue. Therefore, we recommend one TDK ferrite core per Powerwall installed up to a maximum of six ferrite cores for 10 Powerwall 2s. More information on how to install ferrite cores can be found on the Enphase Tech Brief for ferrite core installation.  \nScenario 1: Single-phase site with single-phase Enphase Solar Only system installed on the backup circuit  \nIn this scenario, the Tesla Powerwall 2 will supply power to the backup circuits when the connection to the grid is lost. When the Tesla Gateway 2 senses a loss of grid, it will island the site (or backup circuits) and produce a grid reference in a backup mode that allows the solar to keep producing (in sufficient sunlight). The customer will need a Tesla Gateway 1 (single-phase) or Tesla Gateway 2 (three-phase). An IQ Relay is not required when the Tesla Gateway is connected to the backup (grid) side of the solar supply main switch(s).  \nThis configuration can also be utilised for multi-phase sites with solar on one of the phases, and the solar must be connected to the same phase as the Tesla Powerwall 2. For this scenario, the correct grid profile to deploy is the standard AS/NZS 4777.2:2020 (Region A/B/C/NZ) grid profile. This has the correct frequency shift and power control parameters that ensure smooth ramp rates and avoid overcharging the Tesla Powerwall 2 in backup mode. Full backup and partial backup options can be deployed.  \nThe maximum amount of PV inverter capacity to be installed on the same phase and the load side of the Tesla Gateway is 5 kVA (21.7 A) per Powerwall 2. This is a requirement from Tesla. Additional PV inverter capacity can be installed on the grid side of the Te","cbCaieNhsf83ztrG","https://ap.wps.com/l/cbCaieNhsf83ztrG","pdf",323700,"English","# Enphase Solar Only systems and Tesla Powerwall 2 with backup (EPS)\n## Scenario 1: Single-phase site\n## Scenario 2: Three-phase site\n## Scenario 3: Multiple-phase site\n## Revision history","[{\"question\":\"What does this technical brief cover about Enphase Solar Only and Tesla Powerwall 2?\",\"answer\":\"It investigates three scenarios where Enphase Solar Only is deployed with Tesla Powerwall 2 to ensure solar produces power in backup mode with sufficient sunlight. It addresses backup situations only.\"},{\"question\":\"Which grid profile is recommended for the single-phase scenario?\",\"answer\":\"The correct grid profile is the standard AS/NZS 4777.2:2020 (Region A/B/C/NZ) grid profile, selected for correct frequency shift and power control parameters.\"},{\"question\":\"Why are ferrite cores recommended with Powerwall 2 backup systems?\",\"answer\":\"Powerwall 2 is an AC-coupled battery with an internal DC-to-AC inverter, so site noise may affect Enphase PLC between the IQ Gateway and microinverters. The brief recommends one TDK ferrite core per Powerwall 2 up to a stated maximum.\"}]","Enphase Solar Only systems and Tesla Powerwall 2 with backup (EPS) - Tech Brief | PDF",23]