We don’t overview many photo voltaic panels at The Verge, however the tech inside Bluetti’s extremely moveable Sora 500 panel makes it price a deeper look. The brand new N-Sort panels made by Bluetti and others provide you with extra bang for the buck, pound, and sq. inch. That’s a giant deal for vanlifers like me who rely on these beefy moveable photo voltaic panels to increase off-grid stays.
In real-world testing, I noticed Bluetti’s 500W panel ship 509W to my van’s energy station, permitting me to generate over 800W when mixed with the three unhappy 140W monocrystalline photo voltaic panels I’ve put in on prime of my van. That type of stationary output is improbable. I usually devour about 1.6kWh a day, so this array lets me add a full day’s price of cost in solely two hours. I simply want that Bluetti had made the Sora 500 bifacial like Jackery and newcomer Zoupw did with their even lighter, high-wattage, moveable, N-Sort panels designed to maximise output in lower than perfect situations.
The Sora 500 is priced at €849 in Europe — it isn’t being bought within the US but. Bluetti spokesperson Ellen Lee tells me that the corporate desires to deliver it to the US market however it’s “presently navigating some shifting regional insurance policies and commerce dynamics.” Issues that Zoupw and Jackery managed to kind out already.
$984
The Good
- Extremely compact when folded
- Good efficiency in partial shade
- Exceeded rated output
- Environment friendly N-Sort TOPCon cells
The Unhealthy
- Heavy in comparison with opponents
- Single-sided (not bifacial)
- Tedious to unfold/pack
- Not but out there within the US
Bluetti’s single-sided Sora 500 panel makes use of TOPCon (Tunnel Oxide Passivated Contact) cells, an N-Sort expertise which is changing older PERC (Passivated Emitter and Rear Cell) tech. In comparison with PERC, TOPCon panels do higher in low-light, cope with excessive temperatures higher, and degrade extra slowly. TOPCon panels can obtain greater efficiencies (typically ~23–25 %) in comparison with typical PERC panels (~20–23 %), relying on implementation.
The Sora 500 does properly in shading checks, however partially shading the middle 4 panels creates probably the most chaos, dropping from over 500W of output to simply 50W.
The output from the Sora 500, plugged into the LV (low voltage) photo voltaic enter of a EcoFlow Delta Professional 3 photo voltaic generator, dropped to simply 50W when shading the 4 middle panels. You possibly can see my roof-top panels producing 302W on the HV enter.
The Sora 500 did significantly better after I shaded different panel combos, together with the 4 excellent of middle.
Blocking the 4 panels proper of middle dropped output from over 500W to 276W.
All these benefits imply that you just’ll get extra to your cash, as quickly as you unfurl all 12 panels of the Sora 500 and over their prolonged lifetime. The panel additionally options an IP67 resistance to mud and water and an ETFE coating that makes it simpler to wipe away dust that interferes with photo voltaic consumption.
Light-weight portables are not any match for gusts of wind, this one was about 10 – 12 knots.
In my mid-March testing within the south of France at an altitude of about 600 meters, I used to be usually seeing the Sora 500 delivering above its rated output, measuring as a lot as 509W on a cool and cloudless day. It additionally does job of dealing with the solar being partially shaded.
For instance, on a really sunny day when the 12 particular person panels that comprise the Sora 500 had been producing over 500W, the output dropped to 412W when partially shading one nook panel, and 390W when partially shading the right-most two. Partially shading the 4 panels simply to the appropriate of middle dropped the output to 276W.
The output from the Sora 500 dropped dramatically after I blocked the middle 4 panels, falling to simply 50W. That’s possible as a result of I choked off your complete array by severing the connection between all 4 parallel zones. Bluetti makes use of a half-cut cell design and a 3-series, 4-parallel (3S4P) circuit structure for the Sora 500. This leads to a number of impartial energy zones by dividing the cells into smaller halves and distributing them throughout 4 parallel energy paths. It helps to forestall a single shaded space from turning into a bottleneck for your complete panel, such as you see with cheaper panels.
Sadly, Bluetti selected to cowl the again of its panels with material and a posh system of kickstands and straps. By comparability, the Zoupw 480W and Jackery SolarSage 500 X N-Sort panels are bifacial, which means they will additionally acquire ambient mild from the again of the panels when positioned on reflective surfaces like snow, sand, concrete, and, to a lesser extent, grass.
I haven’t examined these panels myself, however I’ve seen unconfirmed person stories claiming to have pushed the Zoupw past 525W of output. Importantly, each panels additionally weigh simply 22lb (10kg), making them even lighter than the 28.4lb (12.9kg) Bluetti Sora 500.
Photo voltaic Panel
Base Energy
Weight
Unfolded Space (sq in)
Watts per lb
Watts per sq in
Bluetti SORA 500500W28.40 lbs~4,510 sq in (100.0” x 45.1”)17.61 W/lb0.110 W/sq inJackery SolarSaga 500 X500W22.05 lbs~3,848 sq in (98.1” x 39.2”)22.68 W/lb0.130 W/sq inZoupw 480W480W22.49 lbs~4,512 sq in (138.6” x 32.6”)21.34 W/lb0.106 W/sq in
On paper, the Jackery panel is the output king when it comes to Watts per pound and unfolded Watts per sq. inch.
And whereas weight is a vital enabler of portability, I ought to be aware that this stuff are likely to fly away when the wind picks up. Thankfully, the Bluetti panel I’ve been testing has tie-down factors for gusty days. All three panels are a lot lighter than the dependable 400W PERC monster from EcoFlow that I’ve been hauling round for the final 4 years. It weighs 35.3lbs (16kg) and remains to be in the stores for $599.
For vanlifers, the Bluetti Sora 500 completely dominates when it comes time to pack the panel away into an RV, van, or closet. The Zoupw and Jackery use commonplace 4-section or 6-section “slab” folds, whereas Bluetti makes use of a 12-section grid fold, permitting it to break down right into a a lot smaller, briefcase-like package deal. Even then, the three.3-inch thick folded Bluetti is thinner than each the three.35-inch thick Zoupw panel and three.82-inch Jackery.
Photo voltaic Panel
Base Energy
Folded Dimensions (L × W)
Folded Space (sq in)
Watts per Folded sq in
Bluetti SORA 500500W22.4” × 17.5”392 sq in1.28 W/sq inJackery SolarSaga 500 X500W39.2” × 20.7”812 sq in0.62 W/sq inZoupw 480W480W34.7” × 32.6”1,131 sq in0.42 W/sq in
The Sora 500 delivers a ton of output for a panel that folds down so small, understanding to 1.28 Watts per sq. inch.
Conversely, the Sora 500 is usually a ache within the ass to arrange because of all of the hinges and straps wanted to assist so many segments. It’s a puzzle I managed to largely grasp after the third set up, however repositioning the panel to observe the solar all through the day is a lesson in persistence.
1/8The Sora 500 folds down extremely small.
With out official US pricing for the Sora 500 panel, it’s onerous to do a direct price-per-watt comparability with the $649.99 Zoupw 480W and $999 (typically on sale for $799) Jackery SolarSage 500 X. Nevertheless, if we strip the European VAT from its €849 price ticket and convert it, the Sora 500 works out to about $820. Whereas that’s aggressive, it nonetheless leaves the Zoupw 480W with one of the best price-per-watt efficiency on this class.
Bluetti’s Sora 500 can’t compete with the Zoupw 480W and Jackery SolarSage 500 X when it comes to weight, however it wins handily when it comes to Watts per sq. inch when folded down. It’s the one 500W panel that successfully disappears right into a small closet or underneath a van bench. As such, it justifies its value premium for anybody like me who has restricted house to retailer an additional photo voltaic panel they solely must deploy often.
- Unfolded: 100 × 45.1 × 0.1 in / 2541 × 1146.6 × 3 mm
- Folded: 22.4 × 17.5 × 3.3 in / 570 × 445 × 85 mm
- Weight: 28.4 lbs / 12.9 kg
- Panels: 12x TOPCon
- Conversion Effectivity: as much as 25 %
- Voltage at Pmax (Vmp):40.92V
- Present at Pmax (Imp): 12.22A
- Open Circuit Voltage (Voc): 49.1V
- Brief Circuit Present (Isc): 13.31A
- Working Temperature: -13°F to 149°F / -25°C to 65°C
- Finest Working Temperature: 77°F / 25°C
- 1.5m MC4 to XT60 cable included in field
Pictures by Thomas Ricker / The Verge
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