{"id":464,"date":"2019-10-21T03:40:02","date_gmt":"2019-10-21T03:40:02","guid":{"rendered":"https:\/\/research.engineering.ucdavis.edu\/greentech\/?page_id=464"},"modified":"2019-10-21T03:40:37","modified_gmt":"2019-10-21T03:40:37","slug":"picnic-day","status":"publish","type":"page","link":"https:\/\/research.engineering.ucdavis.edu\/greentech\/picnic-day\/","title":{"rendered":"Picnic Day Nanogrid Demonstration"},"content":{"rendered":"<p class=\"MsoNormal\">For <a href=\"https:\/\/picnicday.ucdavis.edu\/\">UC Davis Picnic Day<\/a> (a campus open house), our lab built an off-grid solar-battery system to power electric griddles to make pancakes. This project served to give our students experience designing microgrid systems on a small scale that could be done quickly and be used to educate the public about microgrids, solar panels, and batteries. The system consisted of:<\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<ul>\n<li class=\"MsoListParagraphCxSpFirst\" style=\"text-indent: -.25in\"><span style=\"font-family: Symbol\">\u00b7<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span><\/span>2x Sunpower SPR-X21-345 solar panels<\/li>\n<\/ul>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Pmax = 345W<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>\u00a0Vmp = 57.3 V<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Imp = 6.02 A<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>VOC = 68.2 V<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Isc = 6.39A<\/p>\n<ul>\n<li class=\"MsoListParagraphCxSpMiddle\" style=\"text-indent: -.25in\"><span style=\"font-family: Symbol\">\u00b7<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span><\/span>6x second-life Nissan Leaf first generation battery modules<\/li>\n<\/ul>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Capacity = 66 Ah<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Vrange = 2.36-4.15 V \/cell<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.5in;text-indent: -.25in\"><span style=\"font-family: Wingdings\">\u00a7<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0 <\/span><\/span>Contains 2 cells in series, 2 cells in parallel<\/p>\n<ul>\n<li class=\"MsoListParagraphCxSpMiddle\" style=\"text-indent: -.25in\"><span style=\"font-family: Symbol\">\u00b7<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span><\/span>1x <a href=\"https:\/\/www.orionbms.com\/products\/orion-bms-standard\/\">Orion Battery Management System 2<\/a><\/li>\n<\/ul>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Monitors up to 180 cells<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Up to 800 Vdc battery pack<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>CANbus communications<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Battery temperature measurement<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Safety disconnect controls<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Status monitoring software<\/p>\n<ul>\n<li class=\"MsoListParagraphCxSpMiddle\" style=\"text-indent: -.25in\"><span style=\"font-family: Symbol\">\u00b7<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span><\/span>1x <a href=\"https:\/\/www.morningstarcorp.com\/products\/tristar-mppt\/\">TriStar TS-MPPT-60 Solar battery charger<\/a><\/li>\n<\/ul>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Battery current = 60 A<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Max power = 3200 W<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Max PV voltage = 150Vdc<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Programmable battery charging algorithm<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Status monitoring software<\/p>\n<ul>\n<li class=\"MsoListParagraphCxSpMiddle\" style=\"text-indent: -.25in\"><span style=\"font-family: Symbol\">\u00b7<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span><\/span>1x <a href=\"https:\/\/www.trcelectronics.com\/mean-well-dc-ac-inverter-ts-3000a\">TS3000 3 kW Inverte<\/a>r<\/li>\n<\/ul>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>It converts 42-60V DC to 120V AC.<\/p>\n<ul>\n<li class=\"MsoListParagraphCxSpMiddle\" style=\"text-indent: -.25in\"><span style=\"font-family: Symbol\">\u00b7<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span><\/span>Safety Components<\/li>\n<\/ul>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>2x Battery contactors (electrically controlled switches)<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Manual disconnect<\/p>\n<p class=\"MsoListParagraphCxSpMiddle\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Battery and PV fuses<\/p>\n<p class=\"MsoListParagraphCxSpLast\" style=\"margin-left: 1.0in;text-indent: -.25in\"><span style=\"font-family: 'Courier New'\">o<span style=\"font: 7.0pt 'Times New Roman'\">\u00a0\u00a0 <\/span><\/span>Terminal covers<\/p>\n<p>&nbsp;<\/p>\n<p class=\"MsoNormal\">The system layout is shown in the figure below. The PV modules are connected to the TriStart solar MPPT tracker and battery charger. The MPPT tracker adjusts the load on the PV panels in order to maximize the power that they can produce. The output voltage of the charger matches the battery voltage, and it injects current up to the maximum allowable current into the battery pack or as much as the PV can supply. Once the battery reaches its fully charged voltage (49.8 V), the battery charger holds its output voltage constant and allows the current to reduce until the battery is fully charged.<\/p>\n<p><span style=\"font-size: 12pt;line-height: 107%;font-family: 'Calibri', sans-serif\"><span style=\"font-family: georgia, palatino, serif\">The charger\u2019s positive output is connected to the charge enable contactor (an electrically controlled switch) before connecting to the battery terminal. This device allows the battery management system (BMS) to disconnect the charger from the battery when the battery is fully charged or when the battery is too hot. This configuration however also prevents the battery charger from directly powering the inverter if the battery is offline.<\/span> <\/span><\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-468\" src=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/Diagram.png\" alt=\"\" width=\"1370\" height=\"1063\" srcset=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/Diagram.png 1370w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/Diagram-300x233.png 300w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/Diagram-768x596.png 768w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/Diagram-1024x795.png 1024w\" sizes=\"auto, (max-width: 1370px) 100vw, 1370px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p class=\"MsoNormal\">There is another contactor (discharge enable contactor) between the battery\u2019s positive terminal and the inverter. This allows the BMS to disconnect the battery from the inverter if the battery is fully discharged or if it is too hot. The battery charger was connected to the battery side of the discharge enable contactor to allow the battery to be charged from PV even if the BMS had opened the discharge enable contactor. The trade-off was that the PV could not power the inverter without the battery.<\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p class=\"MsoNormal\">The manual switch was connected such it could enable only discharge, only charge, or both. This was done by placing the switch on the control wires between the BMS and the contactors. This meant that if the BMS determined that it was unsafe to close a contactor, then turning the switch to the ON position would not close the contactor.<\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p class=\"MsoNormal\">The BMS and the contactors both required 12V DC power to operate, but the battery output was 48V. Therefore they were powered by an aux 12V lead acid battery. This was a simpler solution than installing a DC\/DC step-down converter to power the BMS and contactors and allowed the BMS to continue to operate and monitor the safety of the battery pack even if the battery was fully discharged since it had an independent power source.<\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p class=\"MsoNormal\">Data from the battery management system was monitored by a CANbus connection. This is the same type of communication network used in the automobile industry and is commonly used on battery management systems. The box indicated in the figure below as the CAN communications bus is connected to the BMS, and simply provides convenient connectors that allow a computer to be connected easily to the BMS.<\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p class=\"MsoNormal\">The first version of the system is shown in the figure below.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-473\" src=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/Prototype.png\" alt=\"\" width=\"851\" height=\"1125\" srcset=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/Prototype.png 851w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/Prototype-227x300.png 227w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/Prototype-768x1015.png 768w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/Prototype-775x1024.png 775w\" sizes=\"auto, (max-width: 851px) 100vw, 851px\" \/><\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p class=\"MsoNormal\">The next figure simply shows the back\/inside of the system where the control wiring was hidden along with the battery negative power cable\u2019s connection to the negative terminal of the MPPT tracker.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-475\" src=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190410_150023.jpg\" alt=\"\" width=\"3036\" height=\"4048\" srcset=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190410_150023.jpg 3036w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190410_150023-225x300.jpg 225w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190410_150023-768x1024.jpg 768w\" sizes=\"auto, (max-width: 3036px) 100vw, 3036px\" \/><\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p class=\"MsoNormal\">The next figure shows the final version of the system, along with the PV panels. Notice that the power cables from the battery are no longer located in the front of the system. They were relocated to be inside the enclosure to maximize safety with only active and shielded components left visible. The PV module also had a disconnect built on their stand. This picture was taken the day before Picnic Day when the system was undergoing testing and to charge the battery before the event.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-477\" src=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190412_123605.jpg\" alt=\"\" width=\"4048\" height=\"3036\" srcset=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190412_123605.jpg 4048w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190412_123605-300x225.jpg 300w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190412_123605-768x576.jpg 768w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190412_123605-1024x768.jpg 1024w\" sizes=\"auto, (max-width: 4048px) 100vw, 4048px\" \/><\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p class=\"MsoNormal\">The next figure shows the back of the system with the door closed while testing before Picnic Day.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-479\" src=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190412_123618.jpg\" alt=\"\" width=\"4048\" height=\"3036\" srcset=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190412_123618.jpg 4048w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190412_123618-300x225.jpg 300w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190412_123618-768x576.jpg 768w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190412_123618-1024x768.jpg 1024w\" sizes=\"auto, (max-width: 4048px) 100vw, 4048px\" \/><\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p class=\"MsoNormal\">The next picture shows the system setup in West Village at UC Davis on Picnic Day. This picture was taken just before the event began while the sun was behind a building, so the panels were not generating and power. This changed a few minutes after the event started. The system was kept rotated so that the wooden structure would keep the battery in the shade to prevent it from overheating.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-482\" src=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190413_095602.jpg\" alt=\"\" width=\"4048\" height=\"3036\" srcset=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190413_095602.jpg 4048w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190413_095602-300x225.jpg 300w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190413_095602-768x576.jpg 768w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190413_095602-1024x768.jpg 1024w\" sizes=\"auto, (max-width: 4048px) 100vw, 4048px\" \/><\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p><!-- [if gte mso 9]&gt;--><\/p>\n<p class=\"MsoNormal\">The next picture shows the pancakes being made on the griddle(s) powered by the solar\/battery system.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-484\" src=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190413_095844.jpg\" alt=\"\" width=\"4048\" height=\"3036\" srcset=\"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190413_095844.jpg 4048w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190413_095844-300x225.jpg 300w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190413_095844-768x576.jpg 768w, https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-content\/uploads\/sites\/101\/2019\/10\/IMG_20190413_095844-1024x768.jpg 1024w\" sizes=\"auto, (max-width: 4048px) 100vw, 4048px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>For UC Davis Picnic Day (a campus open house), our lab built an off-grid solar-battery system to power electric griddles [&hellip;]<\/p>\n","protected":false},"author":207,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-464","page","type-page","status-publish","hentry","post"],"_links":{"self":[{"href":"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-json\/wp\/v2\/pages\/464","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-json\/wp\/v2\/users\/207"}],"replies":[{"embeddable":true,"href":"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-json\/wp\/v2\/comments?post=464"}],"version-history":[{"count":14,"href":"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-json\/wp\/v2\/pages\/464\/revisions"}],"predecessor-version":[{"id":485,"href":"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-json\/wp\/v2\/pages\/464\/revisions\/485"}],"wp:attachment":[{"href":"https:\/\/research.engineering.ucdavis.edu\/greentech\/wp-json\/wp\/v2\/media?parent=464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}