review.solar · Sourced values document
18kPV
12 kW · Hybrid · 208/240 V · 3 MPPTs · Essential-load backup
EG4
Inverter
Released 2023 · Evidence checked 2026-08-05 · Scored to Solar Analytica inverter rubric v3.6.0
71/100
Very good
Overall
Score by category
Efficiency
60
Design & Flexibility
92
Thermal & Physical Resilience
64
Features & Integration
90
Safety & Compliance
65
Guarantee & Backbone
64
Energy Ecosystem
62
Sourced specification values
Published power range12 kW
Scored benchmark12 kW
Peak efficiency97.5%
Weighted efficiency96.9%
Number of MPPTs3
Max input current / MPPT25 A
Ingress protectionIP65
Warranty period10 yr
Grid & safety certificationNational grid code + regulator-listed (IEC 62109 not evidenc
Manufacturing track record4-10 years (or new brand, strong parent heritage)

Some values are estimated where independent verification was not available: see the full scorecard and review.solar/terms.

Page 2 · Audit sheet: complete sourced record (1 of 2)

18kPV · every criterion scored by the live rubric (Solar Analytica inverter rubric v3.6.0), with its recorded value, evidence status, and any linked source. Page 1 carries the buying-decision summary; this and the next page are the full record for verification and right of reply.

Efficiency
Peak efficiency (%)97.5datasheetSource
Weighted efficiency (CEC/Euro %)96.9datasheetSource
Semiconductor technologyIGBT / MOSFET (standard silicon)secondarySource
Night standby consumption (W)18datasheetSource
Design & Flexibility
Number of MPPTs3datasheetSource
Max DC:AC oversizing ratio1.75statedSource
Max input current per MPPT (A)25datasheetSource
Thermal & Physical Resilience
Thermal managementFan-cooleddatasheetSource +1
Ingress protectionIP65secondarySource
Operating temperature rangeStandarddatasheetSource
Surge protectionNo DC SPD / Basicreviewed absenceSource
Features & Integration
Hybrid / battery capabilityHybrid (battery-ready) + backupdatasheetSource
Backup / islandingEssential-loads backupdatasheetSource +1
Monitoring & smart featuresApp + VPP-ready + export control + rapid shutdown + string/module-level visibidatasheetSource +1
Reactive power range±0.8 pf leading/lagging: Q(U) compliantdatasheetSource

review.solar · audit sheet · Solar Analytica inverter rubric v3.6.0 · https://review.solar/cards/eg4-electronics-18kpv-hybrid-inverter-us

Page 3 · Audit sheet: complete sourced record (2 of 2)

18kPV · continued from page 2 · Solar Analytica rubric Solar Analytica inverter rubric v3.6.0.

Safety & Compliance
Grid & safety certificationNational grid code + regulator-listed (IEC 62109 not evidenced)datasheetSource +1
Shutdown / arc safetyString with AFCI (optional / software-activatable)datasheetSource +1
Guarantee & Backbone
Warranty period (yrs)10datasheetSource +1
Warranty assuranceParts onlydatasheetSource +1
Financial strength & warranty backingStable / listedsecondarySource
Manufacturing track record4-10 years (or new brand, strong parent heritage)secondarySource
Energy Ecosystem
Open protocol & API maturityCloud API onlysecondarySource
VPP & grid services readinessVPP-capable + live VPP program (named market)datasheetSource +1
EV charging integrationBasic EV charger scheduling (timer / relay)datasheetSource +1
Thermal load managementTimer-based thermal load scheduling onlydatasheetSource +1
Smart home & IoT depthCommunity integration (Home Assistant, no native support)secondarySource
Firmware & security disclosureFirmware updates referenced; no security documentationdatasheetSource +1

review.solar · audit sheet · Solar Analytica inverter rubric v3.6.0 · https://review.solar/cards/eg4-electronics-18kpv-hybrid-inverter-us