Finalizing solar options – which one of these is the best?

We have now met with and received quotes from 6 companies. Below are our top 3 choices (all happen to be local companies). Which option seems to be the best option, factoring in both pricing and equipment? Are there any major difference between Sunpower vs REC vs Solaria panels? Also, I’m tempted to go with the largest system upfront, but I’m honestly not sure if it’s necessary as we are in a net-metering state.

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Option 1 (local company that’s been around the longest of the 3):

System size: 6.84 kW

Estimated current usage: 6,371 kW

Annual production: 6,840 kWh (105% energy offset)

Solar Panels: 19 REC 360 black – 360 watts

Inverter: Enphase IQ8+ microinverter (although they recommend SolarEdge Energy Hub inverter if considering battery back up in the future)

Monitoring system: Enphase Envoy

Cash gross: $20,494 ($2.99/kW)

Cash net (after tax incentives): $10,166 ($1.48/kW)

Warranty: 25 years on equipment & labor, 10 year on roof

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Option 2 (local company):

System size: 8 kW

Estimated current usage: 7,500 kW

Annual production: 7,989 kW (107% energy offset). They told me they were purposely inflating this number so we’d never need to add on more – also factors in a 10% shade rate.

Solar Panels: 20 Solaria 400 watt modules

Inverter: Enphase IQ8+ watt modules

Cash gross: $24,000 ($3.00/kW)

Cash net (after tax incentives): $12,760 ($1.60/kW)

Warranty: 25 years on equipment, 5 years on labor

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Option 3 (local company that deals Sunpower equipment):

System size: 5.5 kW

Estimated current usage: 5,954 kWh

Annual production: 6,376 kWh (103.37% energy offset)

Solar Panels: 13 Sunpower spr m425ac – 425 watts

Inverter: Sunpower AC

Cash gross: $24,475.75 ($4.43/kW)

Cash net (after tax incentives): $13.112.06 ($2.37/kW)

Warranty: 25 years on equipment & labor