Matt at Continuous Resources is a nice guy to deal with for many things solar.
BattleBorns are available for the same price from either BattleBorn direct or through Continuous Resources, but CR has a partnership with the guy on facebook Brian Boone and there is a discount code worth $25 per battery.
For everything I bought I sourced through multiple vendors either for cost or availability.
BattleBorn for tech info
Continuous Resources - for panels, BattleBorn batteries, panel fuses and brackets. Because I was the first customer to use order the newest tilt brackets I got them at a substantial discount (9 panels) Plenty of tech help back and forth with products I did not purchase from Matt
AM SOLAR - Rooftop combiner box (way overpriced), 10/2 duplex round cables with UV (pricey but good for the roof and sealing combiner box strain reliefs)
Northern Arizona Wind - nice, smaller breaker box and breakers for the panels
Amazon- best for 4/0 welding cable, 10 gauge MC-4 connectors and a variety of misc items
West Marine - anything else that was a crossover item (and I get vendor pricing)
I get no benefit or gain out of any of the above, just passing on where I had good results.
If you are planning on SOLAR, this may be the last year for the renewable energy credits (at least until the New Green Deal takes effect)
The 30% tax credit can be significant when you start pricing multiples of things. And it includes everything required to make the project complete. Just the batteries, that gives me almost 6 batteries for the price of 4, something to consider if you don't mind waiting for your return.
Great info - thanks Duane.