Comments on: Want to avoid red tape with EV charger interconnection? Go off-grid https://www.solarpowerworldonline.com/2023/01/want-to-avoid-red-tape-with-ev-charger-interconnection-go-off-grid/ Covering the world of solar power technology, development and installation. Tue, 17 Jan 2023 04:39:33 +0000 hourly 1 https://wordpress.org/?v=6.2 By: Jer https://www.solarpowerworldonline.com/2023/01/want-to-avoid-red-tape-with-ev-charger-interconnection-go-off-grid/#comment-139100 Tue, 17 Jan 2023 04:39:33 +0000 https://www.solarpowerworldonline.com/?p=100964#comment-139100 Our over-looked but most rapidly exploitable renewable energy resource is parking lots. Just follow France, by incentivizing & mandating solar canopies with integrated stationary storage batteries & vehicle-to-grid chargers on ALL existing parking lots with 80 or more spaces within 5 years, & within 3 years for big parking lots with hundreds of spaces. Do this before building more utility solar on remote farmland & environmentally sensitive habitat. Produce & store power right where most energy is consumed; shade existing asphalt heat islands; reduce utility bills for tenants of leased commercial property, like neighborhood shopping centers & large apartment buildings. And accomplish all this without requiring expensive new long distance utility transmission infrastructure. This is not a utility fix-all, but it can be accomplished very rapidly, everywhere, with existing standardized technology, expedited local permitting, & an existing trained workforce. Yes, the supporting canopies cost more than existing building roofs, but the area available is massively greater, and canopy structures will last for at least 75 years….and that’s 3 successive generations of improving solar panels. Make this a state or local building ordinance, like fire sprinklers or parking requirements, and you won’t have to fight any NIMBY lawsuits. If grid-tied, with V2G chargers, these installations could support the grid. If utility monopolies refuse to approve that, they could be off-grid.

]]> By: Solarman https://www.solarpowerworldonline.com/2023/01/want-to-avoid-red-tape-with-ev-charger-interconnection-go-off-grid/#comment-139072 Sat, 14 Jan 2023 17:42:15 +0000 https://www.solarpowerworldonline.com/?p=100964#comment-139072 “Earlier this year, Mckinsey & Company predicted that 50% of zero-emission vehicles (ZEVs) by 2030 would “require 1.2 million public EV chargers and 28 million private EV chargers by that year. All told, the country would need almost 20-times more chargers than it has now.” This demand will only be exacerbated with the new IRA legislation and incentives for people to purchase EVs.”

This is the pundit of prediction based on what is being done today. There are many companies chasing the golden fleece of the solid-state battery that would be much safer, cheaper to mass manufacture, because, of reduced number of steps to take materials and manufacture batteries on a solid-state line. It is said that TESLA already has a 1,000VDC battery pack in the Semi trucks. It is possible for the large truck and drayage sector vehicles a 1,200VDC battery pack may become common over the next 10 years. Technology changes in battery chemistries, safety, cost and longevity of battery packs can change the need for all of the charging points predicted so far. Battery chemistries based on more available elements and materials can bring down costs of mass manufacturing battery cells. Basically, battery chemistry, battery costs, battery longevity, battery pack voltage. Then electric motors designed without expensive rare earth materials, better, more cost effective electronics used in inverters to drive the electric motors. Right now there are a couple of companies that will soon release SiC based MOSFET power drivers that can handle up to 1700VDC. There is at least one other company developing a nano layer of diamond on SiC to create high energy density power drivers for future inverter designs, making more compact inverters common place. The battery technology and electronics technology can be directly ported over to residential and utility scale energy generation and storage.

As for charge stations, with the proper battery chemistries being used, the proper battery pack voltage, the charge times for BEVs can come down to that sweet spot time period of between 10 to 5 minutes to charge up. Then all of the mini-mart gas stations today could also have 16 charge stations at each site to accommodate public vehicle charging.

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