LIVE: Poll results - Creator Support

How much power do Enphase and other solar micro inverters draw at night time when switched off? It's actually a very interesting question involving real and apparent/reactive power, the system topology, and whether your storage battery is on-grid or off-grid, and also its efficiency curve. Let's measure it, do some calculations, and look at when it might be a problem. Buckle up Dorothy! I'm upgrading my solar power system AGAIN: https://www.eevblog.com/forum/renewable-energy/solar-upgrade-again/ Microinvreter panel sizing: https://www.youtube.com/watch?v=x4ER6I8Y9gA New Enphase system install: https://www.youtube.com/watch?v=VTUZk7vY1ME 00:00 - How much standby power does the Enphase micro inverter take? 04:53 - Solar Analytics power measurement at night 07:49 - The actual real power consumption of the Enphase inverter is... 08:32 - So why is it drawing 1.1A at night time? 09:20 - Reactive and Apparent power 10:10 - The Power Factor 11:41 - You only pay for REAL power 15:27 - Power Factor Correction & Energy Saver SCAMS 17:29 - DaveCAD: How does the Enphase Microinverter work? 23:38 - Bidirectional energy flow and untility VAR control 27:55 - How many microinverters can you have? 29:02 - What if you have grid connected battery storage? 30:46 - Battery inverter switching losses 33:19 - I2R copper losses 35:29 - Why not disconnect with a relay? 39:20 - Conclusion Forum: https://www.eevblog.com/forum/blog/eevblog-1487-do-solar-micro-inverters-take-power-at-night/ Support the EEVblog on: Patreon: http://www.patreon.com/eevblog Odysee: https://odysee.com/@eevblog:7 Web Site: http://www.eevblog.com EEVblog2: http://www.youtube.com/EEVblog2 EEVdiscover: https://www.youtube.com/eevdiscover AliExpress Affiliate: http://s.click.aliexpress.com/e/c2LRpe8g Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! https://www.eevblog.com/crypto-currency/ T-Shirts: http://teespring.com/stores/eevblog #ElectronicsCreators ... https://www.youtube.com/watch?v=_R4wQQNSO6k

Dave demonstrates how to do some basic in-house EMC Pre-Compliance conducted emissions testing on a DC powered product using an open source hardware Line Impedance Stabilisation Network (LISN) box, and a low cost Rigol DSA815 spectrum analyser http://amzn.to/1b1aPJH http://www.tekbox.net/open-hardware/tboh01-5uh-impedance-stabilisation-network-lisn NOTE: As stated on the product page, this product and technique is for DC powered products only, it is not to be used for the mains supply. EMC Test Facility: http://www.youtube.com/watch?v=ZM3jWYGNoLU Forum: http://www.eevblog.com/forum/blog/eevblog-548-emc-pre-compliance-conducted-emissions-testing/ EEVblog Main Web Site: http://www.eevblog.com ... https://www.youtube.com/watch?v=uLIr1eFjY2s

Bit-Banging an I²C port with David. Git link: https://gitlab.com/Sepps/generic-bitbang-library-v1 EEVblog Main Web Site: http://www.eevblog.com The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2 Support the EEVblog through Patreon! http://www.patreon.com/eevblog EEVblog Amazon Store (Dave gets a cut): ... https://www.youtube.com/watch?v=fm13tIe5wSc