expiredowl posted Feb 01, 2022 07:57 AM
Item 1 of 6
Item 1 of 6
expiredowl posted Feb 01, 2022 07:57 AM
Costco Members: EcoFlow River Pro Portable Power Station
& More + Free Shipping$430
$579
25% offCostco Wholesale
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With the Tesla pricing, that's about $778/kWh (without taxes, installation, circuitry, etc), and the Powerwall is not portable, if that matters to some of us.
With the EcoFlow pricing, it's $791/kWh (without taxes and still need something like a power transfer switch installed) at the Costco price or $1,000/kWh (at the EcoFlow retail price of $3,600) and $750/kWh for the extension batteries (at the EcoFlow retail price of $2,699).
I consider the EcoFlow Delta Pro model as a DIY (as someone else has put it) starter version of a home battery backup system, with some other benefits, such as having clean energy for camping and other peripheral uses. To have it fully able to be a home backup system for a decent amount of time (12-24 hours), I will probably need 4 of these linked in series, which might be the max at this point in time. With ~14kWh, that should be more than enough for my essential needs, if I turn off non-essentials. (I'm using around 6-8kWh for essentials per day and about 12-14kWh for a typical day that includes non-essentials, too. This is in San Francisco, so no A/C.)
The Delta Pro can power essential things for at least a few hours in a serious pinch.
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It outputs 20V which will be okay since most Dells run on 19.5V
And if your Dell AC adapter has the smaller tip, you buy this dongle https://www.ebay.com/itm/184293325974
It is more efficient to go DC to DC then DC to AC to DC.
The highest tier (Pro) doesn't even have 240V - and the specs don't really advertise it well. Even in the manual I can't find the NEMA distinction for the plug (TT-30 for reference). Any gas generator will have these specs loud and clear. It's almost as if they want to call this a generator and parade it as one but purposefully obfuscate the specs.
It appears as if you can get 240V out of it, I mean they have photos of dryers and such on the website, but it seems you need a Smart Home Panel, which is "Coming Soon" at some unknown price. Alternately you can get a "Double Voltage Hub" (which of course requires 2 Pro's) [and this item is sold out but only costs $140 if you could buy it]. The hub can apparently support "7200W, 30A". So the bare minimum to get 240V would require (2) Pro units and the hub that you can't buy and that package will cost around $6000 and only give you 7.2kWh of energy, around 1/3 of the avg household's daily consumption. I wouldn't consider these, in any form, competitive for home power backup use. For reference, your avg clothes dryer uses 3kW, so 2 units with the connector above would be roughly capable of drying 2 loads of laundry, give or take.
I guess this might have a place in an apartment for power outages for 120V appliances, or some limited camping applications. It's 100 lb, not something I'd want to lug around, and not enough onboard storage for any length of time really, only 3.6kWh. That's around 15% of the average household's energy usage per day. And, it's $2850 *on sale*.
This one says it will run a hairdryer for 2 hours. I would not consider this a reliable backup power source alone.
Is this powerful enough to power a full sized refrigerator/freezer for a few hours?
https://www.amazon.com/Jackery-Portable-Power-Station-Generator/dp/B07D29QNMJ/ref=pd_lpo_3?pd_rd_i=B... [amazon.com]
https://www.amazon.com/dp/B07SM5H...=emc_
I have a small gas generator (that's not an inverter) and was thinking of getting a small one of these to be able to charge electronics from the generator (though the battery bank) in case of emergency and to have a usable battery bank for other purposes. Seems no reason to get one product (inverter gen) when getting this in two parts gives more utility and is cheaper.
The math for the linked product, the Delta Pro, is correct. The Delta Pro's capacity is 3600Wh so 3600Wh ÷ 1875W = 1.92 hours . However, it is realistically closer to 1.5 hours since rule of thumb is 20% reserved by unit for itself.
Also, most hairdryers are 1500W at high setting.
The River Pro has the option of an extra battery.
None of the current Jackery products has the option of the extra battery.
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The River Pro can handle an AC surge of 1200W.
If you're adamant about the above, you're stuck just scaling these types of battery options unfortunately.
The electricity was cheaper at night, so the power bank was charged at night and also ran the refrigerator.
During the day, the power bank is disconnected from the grid and the refrigerator is powered by the power bank.
Is this powerful enough to power a full sized refrigerator/freezer for a few hours?
https://www.amazon.com/Jackery-Portable-Power-Station-Generator/dp/B07D29QNMJ/ref=pd_lpo_3?pd_rd_i=B... [amazon.com]
https://www.amazon.com/dp/B07SM5H...=emc_
I have a small gas generator (that's not an inverter) and was thinking of getting a small one of these to be able to charge electronics from the generator (though the battery bank) in case of emergency and to have a usable battery bank for other purposes. Seems no reason to get one product (inverter gen) when getting this in two parts gives more utility and is cheaper.
If you're adamant about the above, you're stuck just scaling these types of battery options unfortunately.
Buy a power meter. I have one.
According to https://energyusecalcul
Taking the 180W number, the Delta Pro can last 0.83 days.
The electricity was cheaper at night, so the power bank was charged at night and also ran the refrigerator.
During the day, the power bank is disconnected from the grid and the refrigerator is powered by the power bank.
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Buy a power meter. I have one.
According to https://energyusecalcul
Taking the 180W number, the Delta Pro can last 0.83 days.
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