Lithion HomeGrid residential photo voltaic batteries are a more moderen product available on the market that mix Lithium Iron Phosphate battery know-how (nicknamed LFP primarily based on its chemical system, LiFePO4), with a modular design, permitting owners to get a battery measurement that meets their distinctive wants and offering them with the means to rapidly improve when vital.
LFP batteries are safer and extra environment friendly than different forms of lithium ion batteries; particularly Lithium-Nickel-Manganese-Cobalt-Oxide (NMC) batteries, that are at the moment the most-used battery chemistry. NMC batteries work nicely for a lot of functions, however function at a better temperature and have the potential to catch fireplace if they’ve defects, because of a phenomenon often called “thermal runaway”. The chemistry of LFP batteries additionally doesn’t include cobalt, a poisonous chemical sometimes mined beneath dangerous situations.
The house power storage trade has seen an enormous inflow of latest merchandise within the latest previous, as photo voltaic corporations and large electronics conglomerates soar right into a market the place clients are hungry for good, reasonably priced methods to offer backup energy for his or her properties. HomeGrid is likely one of the newest of those merchandise, and the corporate’s nice know-how and good strategy to modularity ought to earn it a high spot on the checklist of battery backup choices for many individuals.
Beneath, we’ll dive into what makes the HomeGrid battery particular, and which sort of home-owner it’s greatest for.
- HomeGrid batteries are a more moderen product available on the market, supplied by Lithion, an organization with years of expertise making batteries.
- They use LFP battery chemistry, which is safer and longer-lasting than the extra widespread NMC battery chemistry.
- HomeGrid’s Compact Collection batteries provide 5.12 kWh of storage and are greatest for tiny homes and residences.
- Stack’d Collection batteries are modular, can retailer between 9.6 and 38.4 kWh, and are greatest for most individuals who need to add backup energy with a photo voltaic set up.
- The Built-in Collection—which is just like the Stack’d Collection however comes with an built-in Sol-Ark inverter—has been introduced however will not be but commercially out there.
Lithion battery know-how
HomeGrid batteries are manufactured by Lithion, Inc., which is a vertically built-in producer of battery cells, packs, and modules. Previously referred to as “Valence Know-how”, the corporate developed and manufactured the first-commercially viable LFP battery cathode materials.
Lithion manufactures its batteries in a number of places, together with a big battery pack facility in Nevada. The cells in HomeGrid batteries are at the moment made abroad, however the firm is actively searching for websites to fabricate HomeGrid battery cells within the USA.
Lithion’s merchandise are fascinating due to the expertise and the belief the corporate has gained as a provider to many different industries. They had been a pioneer of LFP batteries and maintain vital patents associated to battery know-how.
Along with making HomeGrid batteries, Lithion gives battery cells and packs to electrical and plug-in hybrid car producers and army contractors.
HomeGrid battery merchandise
The HomeGrid model provides three merchandise for the residential and small industrial market: the Compact Collection, Stack’d Collection, and Built-in Collection.
HomeGrid additionally provides merchandise for giant industrial and grid-scale makes use of, however since our web site is concentrated on the house market, we’ll focus on solely the three merchandise listed above.
Right here’s a desk exhibiting how the totally different batteries evaluate:
|Product collection||Storage capability||Steady energy||Surge energy||Mounting & weight||Price*|
|Compact||5.12 kWh||5.12 kW||5.12 kW||Wall, 128 lbs||$3,300|
|Stack’d||9.6 – 38.4 kWh (2-8 modules)||9.6 – 14.4 kW||12 – 16.8 kW||Ground, 304 – 952 lbs||$6,850 – $23,000|
|Built-in||9.6 – 24 kWh (2-5 modules)||9.6 – 14.4 kW||12 – 16.8 kW||Ground, 324 – 648 lbs||~$30,000**|
*Price earlier than set up and incentives
**Built-in Collection to be launched later in 2022
It’s vital to notice that the prices listed above are proven earlier than making use of the federal photo voltaic tax credit score; the batteries are eligible for the credit score, as long as they’re completely charged by a photo voltaic set up.
If you happen to’re confused by any of the numbers within the desk, take a look at our articles on kW vs kWh and our photo voltaic battery purchaser’s information.
Now, let’s run via particulars about every of HomeGrid’s residential merchandise.
A HomeGrid Compact Collection battery. Picture supply: HomeGrid
The Compact Collection is an entry-level battery for small residential wants. This wall-mounted battery weighs 128 lbs and might retailer 5.12 kWh of power. The battery is DC-coupled, which means it must be linked to a hybrid inverter. The Compact Collection is designed to work with inverters from a number of producers (see datasheet linked beneath for a listing).
Compact Collection specs
The battery can present as much as 5.12 kW of energy to run home equipment, which is sufficient to maintain some lights on and a fridge going, however not sufficient to start out up an air conditioner. The common residential dwelling makes use of about 30 kWh per day, so one HomeGrid Compact battery wouldn’t be sufficient to retailer power for an average-sized dwelling.
It is potential to attach as much as 10 Compact Collection batteries in parallel to extend power storage capability, however the batteries’ energy output would nonetheless be restricted to five.12 kW. This implies a number of Compact batteries might retailer sufficient power, however nonetheless wouldn’t be highly effective sufficient to start out an air conditioner.
Further studying: Compact Series datasheet
The very best use for the Compact Collection batteries could be for storing a small quantity of photo voltaic power in a tiny home or cabin, or to offer backup energy to a small condo.
Compact Collection batteries might be bought for $3,300 from widespread photo voltaic provide web sites. If you happen to plan to make use of the Compact battery in an off-grid setup, you’ll additionally want a battery-ready hybrid inverter, together with photo voltaic panels.
A HomeGrid Stack’d Collection battery. Picture supply: HomeGrid
HomeGrid’s major product line is the Stack’d Collection. Because the title implies, the battery system is constructed by stacking parts on high of each other. Every battery comes with a base on the underside, a battery administration system on high, and two to eight storage modules in between. Every module provides 4.8 kWh in storage capability, they usually stack on high of one another like Lego bricks.
The corporate touts an set up time of half-hour, and including a module to the system solely takes about 5 minutes (in case you can elevate the 108-pound modules with or with no companion, that’s). Right here’s a fast video exhibiting how the Stack’d Collection battery is put in:
Stack’d Collection specs
Along with the straightforward set up, the Stack’d Collection has some fairly sturdy specs. With two modules put in, a Stack’d battery can output 9.6 kW of steady energy and 12 kW of surge energy. That’s sufficient to start out a 5-ton air conditioner on high of all the opposite circuits you could be operating.
With something greater than three modules, the Stack’d Collection can output 14.4 kW steady and surge to 16.8 kW. That’s fairly a distinction from a battery just like the Tesla Powerwall, which might solely surge to 10 kW (22 kW when paired with a big photo voltaic set up beneath full solar). Including greater than three modules to the Stack’d Collection will increase the power storage capability, however not energy output.
The Stack’d Collection would be the battery for most owners who have already got photo voltaic panels and a hybrid inverter put in. It additionally works nicely as a part of a brand new photo voltaic set up, except you like the clear look of the Built-in Collection (coated beneath).
These batteries are designed to work with inverters from a number of producers (see datasheet linked beneath for a listing), nevertheless, Sol-Ark is HomeGrid’s most well-liked inverter model, as a result of they benefit from all of the capabilities of the Stack’d batteries.
Along with getting used for a hybrid grid-tied set up, the Stack’d Collection can present sufficient energy and storage for a real off-grid expertise, when put in alongside photo voltaic and paired with inverters that may deal with the output wanted to run a house off-grid.
Further studying: Stack’d Series datasheet
On the low finish, the price of a 9.6 kWh Stack’d Collection battery is between $7,500 and $8,000, together with set up. Further modules price roughly $2,700 every, bringing the overall price for an 8-module 38.4 kWh Stack’d Collection to between $24,000 and $25,000. That’s a mean price of $0.64/kWh.
For comparability, let’s take a look at LG ESS dwelling batteries, that are a highly regarded DC-coupled battery utilized in dwelling installations all around the nation. A single LG RESU10H Prime can retailer 10 kWh of power and prices between $7,000 and $7,500 put in. 4 of them would retailer 40 kWh and price between $27,000 and $28,000; a mean price of $0.69/kWh.
After all, the precise price of those batteries might be diminished by the federal photo voltaic tax credit score, making them cheaper than listed above.
A HomeGrid Built-in Collection battery show at Intersolar 2022.
As talked about above, Sol-Ark is HomeGrid’s most well-liked inverter model companion as a result of Sol-Ark’s inverters match the capabilities of the Stack’d Collection battery. This choice is so sturdy that HomeGrid determined to return out with the Built-in Collection, which is actually a Sol-Ark inverter on high of a Stack’d Collection battery.
With the addition of the Sol-Ark inverter, the HomeGrid battery might be simply put in by a certified technician to retrofit an present solar-only system right into a photo voltaic+storage system, and might in fact be put in alongside new photo voltaic panels, as nicely.
Just like the Stack’d Collection, the Built-in Collection can use between 2 and eight modules for 9.6 to 38.4 kWh of storage. It will possibly additionally output a most of 14.4 kW steady energy and surge as much as 16.8 kW. The Built-in Collection can include both a Sol-Ark 8 kW or 12 kW inverter, and can include Sol-Ark’s new 15 kW inverter when that turns into out there.
The Built-in Collection will not be but available on the market, however has been introduced for later in 2022; you’ll be able to see details about it on the HomeGrid website. We’ll replace this text when that modifications.
Do you have to spend money on a HomeGrid battery?
HomeGrid could also be a brand new model within the battery market, however the know-how and execution listed below are among the many greatest out there. If you happen to’re searching for a strong, modular answer that may be added to as your wants change (and with no technician having to return to your home), look no additional.
HomeGrid batteries are cost-competitive with the preferred choices available on the market, and truthfully, they carry out higher than the rivals of their worth vary. Including a Sol-Ark inverter to take full benefit of the HomeGrid shall be barely dearer than inverters from one other model, however Sol-Ark has their very own attributes that add worth to the deal.
All in all, HomeGrid batteries get our suggestion.