Top 5 Batteries for Home (And One You Might Not Expect)

Corrections: 07:37 It's NMC, not LFP, 07:46 It should be 9.0 kVA peak (10s) max output Do you want any of these options for your home? Have any you’d add to the list? The first 100 people to use code UNDECIDED at the link below will get 60% off of Incogni: incogni.com/undecided. If you like this video, check out Are These Batteries The Future Of Energy Storage? https://youtu.be/n1TBAWlbXKI?list=PLnTSM-ORSgi4dFnLD9622FK77atWtQVv7

No indication on a DIY solution. 14.5kwh of LFP prismatic Grade A cells comes in at about £2k, pair these with a decent BMS £120, and a Victron Energy MPII 5kw Inverter/charger and you're at about £4,500 plus installation, but as it's DIY we'll assume self install, resulting in a £321 per kwh system. Easy to add additional batteries and more inverters that sync for higher output peak power. Those that can, really should consider DIY as it's by far cheaper for the same facility. Equally, no one should fit NMC based home battery systems in their homes, outside and as far away as practical would be my advise given their huge risk of thermal runaway (Fire). Even without solar this system enables load shifting where time of use import tariffs are available.

Paying over $1000/kWh is certainly the reason most people decide to not go for battery storage. There are some very tempting options for those interested in a more DIY installation, with 48V LFP server rack batteries costing around $300/kWh

I think 48v server rack batteries are worth mentioning too. I have just added a second to my system (US5000). I will save a little each month and add another unit as I can afford. They are much cheaper to buy and no cost to add to my system.

Signature Solar was the most cost effective for me plus their amazing customer support. $13,187.94 or ~$430/kwh for a system with 30.72kwh of battery, 13kw continuous inverter output, 10 year warranty. I DIY installed but if you include $4k for install you're still at $560/kwh.

Something I don't think you mentioned is how ridiculously easy it is to DIY a solution, these days. With PnP inverters and server-rack batteries, going off-grid or grid-tied with DIY battery options is easier than most folks might believe. You can also save quite a bit of money in the process, plus you wind up with a much better understanding of what you have, what to expect from it, and what to do if there are ever any issues. Commercial product offerings are nice n' all, but there is stil are many DIY options in this space that are worth considering.

i am preparing to build 18 small homes next to each other. they will be ICF homes (different types for each home) all with ICF roofs. I am looking at doing different storage for each home so I can test side by side in real time for each system. It will be interesting to see how they all perform next to each other and if the entire subdivision can be linked together for a complete off grid community.

I went with EcoFlow. I purchased two Delta Pros. Then I purchased 2 extra batteries to pair up with the Delta Pros. So a total of 14400 Whr. I had an electrician come in and install a transfer switch so I can plug these into my house. All of this together came to around $13k US. So we are getting close to $900 per KWhr.

I have a Tesla powerwall and solar panels. My next step is to install an off-grid system in my garage for car charging. This means my house panels will put that much more into the grid, and it doubles as a backup for a backup. By being off-grid I also don't have to deal with some permits (others I still need) or the maximum panel limit in Colorado (was 120% of my usage, recently changed to 200%).

Didn't realize there were so many unique option. I mostly view the server rack option and DIY LIPO batteries for cells.

The vehicle to home options sound really good after watching this breakdown. Particularly the trucks with 100+ KWH batteries and 9+ KW continuous output. You get a truck that also serves as a battery backup for the price of the battery.

Thank you for delivering amazing content, Matt!!

We are pretty happy with Enphase for the following features: A) in consumption mode the house is drawing first from the solar panels, second from the battery, third from the grid, which minimizes purchased power; B) Enphase mother ship monitors the storm forecasts and switches the battery to backup mode, where power comes primarily from solar panels and secondarily from the grid; C) the Enphase app is instructive of home power draw, helping us choose how many devices we use simultaneously. I have been on this system for three years, paid a lot more than the quote in the video, but have no regrets. LFP seems to be great for getting the maximum cycles of lifetime battery usage which is quite opposite what I want from my EV (fast charging and high output).

Very good summary. I'm especially interested in the smaller/portable (2-3KW) units for a van/RV conversion. If you 'YouTube' some of the fixed systems for vans (long heavy gauge wires, separate batteries, buss bars, solar inputs, MPPT, etc, etc, it quickly becomes a large mess of wires...with HUGE low-voltage line losses. All this goes away with one of the portable LFP options...plus you can use it in your home...or add a 2nd one for redundancy.

I recently had a small solar PV system installed (7 panels) that included a small 2.4 kWh battery. (UK based, pylontech battery connected to a Solis inverter.) It is the battery that makes all the difference, and I already know I could have got three batteries the same size and still filled them up on a good day. The plan is to get another battery added next year along with 3 more panels pointed towards the evening sun. I now know a lot more about how and when my house is using energy via the app that came with the inverter, so I know that right now my house is still running on sun generated energy from earlier today. Be warned though, watching the system run everything is addictive!

My friends down the street, with their solar panels and generator, decided to use their EV as their home battery. It's a 75 kWh battery they can drive down the road and charge for free at the right place. edit: Our neighborhood has spent almost 2 weeks without power in the last 6 months here in Maine.

I greatly appreciate the information you present in every one of your videos;. Your video format, information, is so easy to consume it makes considering and learning about these technologies a joy. Thank you so much for the fantastic work you do.

Enphase looks like the best option. But it’s a real shame you didn’t finish with a comparison chart that showed all five - + cost and ranking.

I've been following Will Prowse for years, and he has some great DIY solutions for home solar, including grid-tied systems, and they are scalable. The pricing is competitive to the systems in this video, and even more important, can have higher outputs. I saw a video with Tesla's power wall, and there is a discrepancy in the contract, where they advertise 13KWh, but the system's inverter will only allow 11 KWh. So while all of these systems look good, I think I am going to go Signature Solar. Scalable, more flexibility and power options. I'd rather have too much power than not enough.

It’s important for anyone considering these batteries in combination with their PV solar installation a few things: 1. Their utility provider’s rate program for power sold back to them. For those lucky enough to have “net metering” where their utility gives you one free KWH for every KWH sold back, the need for batteries is much less. 2. Typically PV sales and install companies charge a lot LESS for the batteries upfront with the system than after the fact. For example, I paid $8,000 per extra Tesla PowerWall battery. But it would be $12K+ to add later. 3. Tax incentives. The federal tax credit which is 30% of the cost of the installed system (including batteries) is HUGE, but only applies to the initial install system, not batteries added later.