Two to four packages
Compare fit before specifications.
Start with the homeowner, use case, project scope, and price basis. A turnkey planning estimate and an equipment-only reference are not directly comparable.
01 Match the homeowner02 Check the use case03 Confirm the design
Compare scope—not rank
Price categories describe the published price basis in this catalog; they do not rank quality or value. Turnkey ranges may include design and installation assumptions. Equipment references may exclude freight, racking, electrical work, permits, labor, and commissioning.
| Comparison | Grid ConnectedTesla Powerwall 3 Solar + Battery Package | Off GridSunGoldPower SGR-12K20E Off-Grid Solar Kit | Grid ConnectedEnphase Premium IQ-5P Home Energy System | Off GridECO-WORTHY 10 kW Off-Grid Power System |
|---|---|---|---|---|
| Ideal customer | California homeowners · Homes with high electricity use · Households exposed to time-of-use rates | Large homes · Farms and rural properties · Cabins and remote homes | Homes with complex roof planes · Properties with partial shading · Premium homeowners | Remote-home owners · Properties with unreliable grid access · Large backup requirements |
| Primary use case | California grid-connected homes seeking solar self-consumption, time-of-use management, and a professionally designed backup plan. | Large remote homes, farms, cabins, workshops, and backup projects with a documented load plan. | Premium grid-connected homes with complex roof planes, partial shade, a preference for panel-level visibility, and a modular backup or time-of-use strategy. | Remote homes, properties with unreliable grid access, large backup plans, and buyers prioritizing battery capacity. |
| Package type | Turnkey grid-connected solar and battery | Equipment kit for off-grid and backup projects | Turnkey modular solar and battery | Expandable off-grid equipment kit |
| Price category | Premium | Mid-range | Premium | Mid-range |
| Price basis | Solar System Installations turnkey planning estimate; not directly comparable with equipment-only pricing. | Dated equipment reference; installed project cost is separate. | Solar System Installations turnkey planning estimate; not directly comparable with equipment-only pricing. | Dated equipment reference; installed project cost is separate. |
| Published price | $44,500–$52,000 installed estimate | $11,946 equipment reference | $39,000–$46,500 installed estimate | $12,049.99 equipment reference |
| Ideal property | A grid-connected California single-family home with meaningful daytime solar potential, evening electricity use, and space for two professionally installed batteries. | A remote or outage-prone property with space for a ground or roof array, a protected equipment area, and loads that have been measured and matched to the system. | A grid-connected home with multiple roof orientations or localized shade, sufficient electrical capacity, and a homeowner who values detailed monitoring and modular equipment. | A remote or outage-prone property with room for a roughly 10.62 kW array, a safe equipment location, and a whole-property load plan that includes seasonal conditions. |
| Installation complexity | High — turnkey solar, dual-battery, backup controls, permitting, and utility coordination. | High — multi-component off-grid design with separate controllers, battery cabinet, protection, mounting, and site-specific distribution. | High — panel-level electronics, four AC batteries, communications, backup controls when selected, and utility coordination. | High — large array and battery bank, parallel inverter architecture, equipment rack, protection, distribution, and off-grid commissioning. |
| Grid connection | Grid-connected; utility interconnection approval is required. | Designed for off-grid use; local electrical and permitting requirements still apply. | Grid-connected; utility interconnection approval is required. | Designed for off-grid use; local electrical and permitting requirements still apply. |
| Backup capability | Backup is available only with compatible controls and an engineered load plan; supported circuits and runtime vary. | Stored-energy operation is included, but supported loads, autonomy, and generator strategy depend on the final design. | Backup is available only with compatible controls and an engineered load plan; supported circuits and runtime vary. | Stored-energy operation is included, but supported loads, autonomy, and generator strategy depend on the final design. |
| Expansion options | Tesla publishes expansion options, but battery quantity, solar input, service capacity, and interconnection limits must be checked for the final design. | Any expansion must remain within the exact inverter, battery, controller, and wiring design limits. | Battery and solar expansion are possible only within current Enphase design rules, service capacity, code, permitting, and interconnection limits. | The manufacturer describes expandable battery and solar options, but exact quantities, communications, conductors, protection, and inverter limits must be validated. |
| Solar array | 10.2 kW DC | 4.98 kW DC | 10.32 kW DC | 10.62 kW DC |
| Battery capacity | 27 kWh nominal | 25.6 kWh nominal | 20 kWh usable | 30.72 kWh nominal |
| Inverter output | Up to 11.5 kW continuous AC per Powerwall 3; final aggregate output is design dependent | 12 kW split-phase inverter output; load support is design dependent | 24 IQ8X microinverters, approximately 9.22 kVA peak AC nameplate; final design dependent | 10 kW 120/240 V split-phase inverter system |
| Output voltage | 120/240 V split phase | 120/240 V split phase | 240 V AC system; final service and backup design dependent | 120/240 V split phase |
| Reasons to consider | Integrated battery and solar-inverter architecture · 27 kWh of nominal storage across two Powerwall 3 units · App-based monitoring, backup reserve, and energy modes | Large 12 kW split-phase inverter · 25.6 kWh LiFePO4 battery bank · Complete referenced solar, storage, and power-conversion scope | Independent power conversion at each solar module · Panel-level monitoring with a compatible commissioned system · Useful flexibility for multiple roof planes and localized shade | 30.72 kWh of nominal storage in the selected equipment variant · Approximately 10.62 kW selected solar array · 10 kW split-phase power architecture |
| Consider another option if | A lower-cost equipment-only kit is the priority. · The home needs unconditional whole-home backup without an electrical load study. | The property cannot accommodate the referenced twelve-panel array or equipment clearances. · Daily energy use exceeds what the site can reliably replenish, especially in low-sun seasons. | Lowest upfront equipment cost is the main priority. · The roof cannot support safe access for module-level equipment service. | The site cannot fit or adequately expose the selected large-format panel array. · A simple plug-and-play whole-home solution is expected without electrical design. |
| Monitoring | Tesla app monitoring and energy controls after compatible commissioning and connectivity setup. | Confirm monitoring capabilities for the current component revision. | Enphase App monitoring with properly installed, connected, and commissioned system components. | Referenced components advertise Wi-Fi or Bluetooth functions; confirm capabilities and compatibility for the exact shipped revision. |
| Professional installation | Required | Required | Required | Required |
| Warranty summary | Tesla publishes a 10-year limited Powerwall warranty. The current warranty document, operating conditions, registration, and remedies must be reviewed for the installed equipment. | Warranty terms vary by component; the complete kit does not have one universal warranty duration. | Enphase publishes a 15-year or 6,000-cycle limited warranty for IQ Battery 5P, subject to official terms. REC and microinverter warranties are separate and may depend on registration, installer status, and other conditions. | Terms vary by exact component and SKU. Battery, inverter, panel, and other warranties must be reviewed separately and must not be applied to the whole project. |
| Source verified | Jul 24, 2026 | Jul 24, 2026 | Jul 24, 2026 | Jul 24, 2026 |
| Next step | Get My System Match | Get My System Match | Get My System Match | Get My System Match |