South Bay Solar Co.
South Bay Solar Co. designs and installs rooftop solar and battery storage across the South Bay. They specialize in NEM 3.0 system sizing and love clustered, block-level jobs — exactly what BlockSun delivers.
Solar: what the work involves
A rooftop solar system converts daylight into electricity your home uses first, exporting whatever is left over to the grid. In California the economics changed materially under NEM 3.0: power you use as it is generated is worth the full retail rate you would otherwise pay, while power you export earns roughly a sixth of that. That single fact should drive how big a system you buy and whether you add a battery.
Questions worth asking before you sign:
- What annual production do you model for this roof, and what shading assumptions did you use?
- How did you size this system against my actual usage rather than my roof area?
- What is the total price after incentives, and what exactly does the warranty cover — panels, inverter, workmanship, and the roof penetrations?
- What happens to the array when I re-roof?
How long it takes: Typically 2–4 months from signing to switch-on, most of it permitting and utility interconnection rather than installation, which is usually 1–3 days on the roof.
Solar costs in Rancho Palos Verdes →
Battery: what the work involves
A home battery stores energy — from your solar array or from cheap off-peak grid power — and discharges it when power is expensive or unavailable. Under NEM 3.0 it is what turns a solar array from an export business into a self-consumption one, which is where the value is.
Questions worth asking before you sign:
- Which circuits will actually stay live in an outage, and for how long at my real usage?
- How much of the warranty is capacity retention rather than just defects?
- Will this arbitrage time-of-use rates automatically, and who controls that schedule?
- Does my main panel need upgrading, and is that in this price?
How long it takes: Usually 1–2 days on site once permits are issued; permitting and utility approval typically add 4–10 weeks.
Battery costs in Rancho Palos Verdes →
How BlockSun works with providers
Homeowners never pay us. When you ask for a quote, that introduction is what we sell to the provider — which is why your plan and its estimates are free, and why we state it here rather than burying it. It also sets a limit we hold to: a provider cannot pay to change your home's ranking or its numbers, because the ranking is computed from your property. Whoever you contact, check the licence is current and active with the California State License Board, get the scope in writing, and never pay a large deposit up front.
Areas covered
Frequently asked
How does BlockSun choose which provider gets my request?
Requests go to providers who cover the specific project you picked and serve your area. A provider cannot pay to rank higher on your home's plan or to be shown ahead of anyone else — the plan is computed from your property.
Does it cost me anything to request a quote?
No. BlockSun is free for homeowners. We are paid an introduction fee by the provider, which is why the plan and the estimates cost you nothing and why we say so plainly.
What happens after I request a quote?
The provider receives your request with the project and address, contacts you directly, and arranges a site visit to confirm the real number. Nothing is committed until you sign with them.
Can my neighbors and I get a better price together?
Usually yes. A contractor doing several homes on one street shares mobilization, permitting and travel across all of them. That is the whole premise of BlockSun's block pricing.
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