{"id":24120,"date":"2022-02-25T09:19:51","date_gmt":"2022-02-25T07:19:51","guid":{"rendered":"https:\/\/www.victronenergy.com\/blog\/?p=24120"},"modified":"2022-03-05T00:15:53","modified_gmt":"2022-03-04T22:15:53","slug":"no-whine-in-the-cellar","status":"publish","type":"post","link":"https:\/\/www.victronenergy.com\/blog\/2022\/02\/25\/no-whine-in-the-cellar\/","title":{"rendered":"No whine in the cellar?"},"content":{"rendered":"
The owner of a large house in San Pedro Garza Garcia, Mexico, always regretted that the 40kWp grid-feed solar array he had installed at his property was not able to provide power to his home when the grid failed.<\/div>\n
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That limitation almost proved catastrophic.<\/div>\n
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He uses his basement to park two Teslas …and as a workshop; there’s a TV room; it’s used for general storage – and it’s also the location of his consumer unit and circuit breakers. The problem is that during extreme weather events the basement is prone to flooding – for which he has extraction pumps ready for use.<\/div>\n
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One evening, during a rainstorm, the grid power also failed – so he wasn’t able to operate his pumps. He and his caretaker rushed out to buy a petrol generator to begin pumping out the flood water before it accumulated to the height of the electric mains. It was a race against time – and their constant fear was that the sockets would become submerged, and that the grid-power would be restored whilst they were still in the basement.<\/div>\n
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It was time to make a new arrangement.\"\"<\/div>\n
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Seeing advertisements from Victron Installer\u00a0Evotech<\/a>\u00a0he got in touch with them to learn about Energy Storage Systems (ESS<\/a>), together with some of the advanced features of the Quattro Inverter\/Charger. \u00a0Most useful to him was the ability to prioritise power supply to essential devices during blackouts; the ability to add power to the existing supply in cases of high demand; and<\/strong>\u00a0the fact that the system will only sell surplus power to the grid when no self-consumption or further energy storage is possible.<\/div>\n
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Deciding to retain all elements of the existing Solar Edge 30kW PV Inverter system, Evotech’s MD Ricardo Rodriguez<\/em> designed an ESS which could be added to the existing installation – but also offer battery back up for 8 hours charged by its own 11kWp solar array. A new Pylontech battery storage of 20.2kWh is maintained at 100% for emergency use.<\/div>\n
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The main components of the system are:<\/div>\n
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