What each brand publishes about solar on its own product pages (cited below). Where a brand publishes no solar feature we say so rather than assume one.| Charger | Solar behavior | What it needs | The catch |
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| Emporia Pro | Excess Solar Management (named feature) | Vue energy monitor - bundled with the Pro | Solar tracking is a two-device system: the charger plus the monitor on your panel |
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| Wallbox Pulsar Plus | Solar Charging supported (datasheet) | Wallbox Power Meter accessory, sold separately | Wallbox states solar charging is not compatible with multi-charger installs or OCPP |
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| Emporia Level 2 (Classic) | Excess-solar charging with the Vue add-on | Vue Home Energy Monitor, sold separately | Without the Vue it is a scheduling charger, not a solar-following one |
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| ChargePoint Home Flex | No solar mode published | Nothing - schedule in the app | Charges on a clock, not on production; a cloudy day is invisible to it |
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| Lectron Nexus 48A | No app, no solar mode | Nothing - schedule from the car | The cheapest honest option when the car's own scheduler is good enough |
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Excess-solar charging: what it is and what it needs
A charger cannot see your panels. To follow production, it needs a second device: a current transformer clamped on your main service conductors, reporting how much power is flowing in or out of the house. The charger’s controller reads that number and sets its output to match the surplus — ramping up as clouds clear, down as the dishwasher starts. Both units that publish this feature require the meter, and neither works as a solar follower without it.
Emporia names the feature: its platform lists Excess Solar Management, and its comparison page footnotes solar charging as requiring the Vue Home Energy Monitor. The Pro bundles a Vue 3 in the box, which is why it ranks first: it is the only unit here that is a solar follower as sold, with nothing else to buy. The Classic gets the same capability when a Vue is added, which Emporia states directly — “add the Vue Home Energy Monitor and we’ll manage Peak Demand and automatically charge with your excess solar power.”
Wallboxlists “Solar Charging supported” on the Pulsar Plus datasheet with the footnote “may require power meter accessory,” and its US product page sells that Power Meter separately. Two caveats from the same page matter: solar charging is not compatible with multiple-charger installations, and not with OCPP. If you run two Wallboxes on power sharing, or your utility program uses OCPP, the solar mode is off the table.
Nobody else in our registry publishes a solar-following mode. ChargePoint, Autel, EVIQO, Grizzl-E and Lectron units will all charge on a schedule — in the app or from the car — and that is the honest limit of what they do.
The schedule-only route, and when it is enough
Set a charger to run from 11 a.m. to 3 p.m. and on a clear day it will consume a large share of your production. It will also draw from the grid at full rate on a cloudy one, because a clock does not know the weather. Under full net metering that costs you nothing; under a reduced export rate it costs you the difference on the bad days only. For a lot of households that is a rounding error next to a few hundred dollars of energy-monitor hardware, and a plain scheduling charger is the rational buy.
The DOE’s homeowner guidance notes that compensation for exported power depends on state policy and the local utility, and points at its PVWatts tool for estimating output. Do that estimate against your car’s daily energy need before deciding. A commuter using 10 kWh a day on a 7 kW array will export plenty at noon; a two-EV household on the same array may need every kilowatt-hour, and then the question is a battery, not a charger.
How we separated them
Emporia Proranks first because it is the only charger sold with the meter it needs already in the box. It is 48 amps hardwired or 40 on a NEMA 14-50 plug, UL listed, ENERGY STAR, NEMA 4 rated with a 25 ft cable and a 3-year warranty. Its other trick — PowerSmart load management on a full panel — is a bonus here, not the reason. The honest con is price: you are paying for a Vue 3 whether or not you would have bought one.
Wallbox Pulsar Plus is the smallest 48-amp smart charger we list, with WiFi and Bluetooth, dynamic load management and a solar mode that works once the Power Meter is added. It is the premium option, and the accessory is an extra line on the bill. If you already own a Wallbox, or want the compact body, buy the meter and it becomes a follower.
Emporia Level 2is the value route. Buy the charger now, add the Vue later if the export math turns out to justify it. Same 48-amp hardwired / 40-amp plug-in body as the Pro, same listings, and Emporia’s app already reports per-session kWh, which is useful for reconciling against a solar production log.
ChargePoint Home Flexhas no solar mode, and we say so. It is here because its app schedule is the most reliable of the group, its datasheet publishes power measurement to ±2%, and it stores up to 90 days of session data locally if the network drops — the right tool for a net-metering household that just wants clean midday charging with a good record.
Lectron Nexus 48A is the no-app pick: 48 amps, IP66, ETL listed to UL 2594, ENERGY STAR, and nothing to configure. Every modern EV can be given a charging window from its own screen, and if that is how you would schedule anyway, the app on the wall was never load-bearing.
What we left off, and why
The Autel MaxiCharger units publish OpenADR on the 80A model, which is a utility demand-response protocol, not solar following; useful for a managed charging program, not for this question. EVIQO and Grizzl-E publish scheduling only, and would duplicate the ChargePoint’s role at a lower spec. And we do not list bidirectional (V2H) chargers here because none in our registry has a live price; our V2H explainer covers where that market stands.
The two questions to answer first
One: what does your utility pay for export? If it is the full retail rate, stop reading roundups and buy the cheapest listed charger that fits your circuit. Two: do you have, or plan, a home battery? If so, the battery’s own controller usually decides what happens to surplus, and a solar-following charger can end up competing with it. In both cases, the charger is the least important part of the system, which is exactly why we would not overpay for one.