Solar Proposal Review
Received a Solar Proposal From SunPower? Get a Local Second Opinion.
Many homeowners compare multiple solar proposals before signing. Robbins Energy provides a free, no-pressure review of your system design, equipment, pricing, and expected production — so you can make a confident decision.
Licensed Solar Contractor · License #1063682 · Serving Central California
About SunPower Proposals
SunPower is known for high-efficiency solar panels and has historically offered some of the highest-wattage residential panels available. SunPower went through significant restructuring in 2024, which has raised questions about warranty support and ongoing service for existing customers. Understanding the current warranty status and who backs it is important for any SunPower proposal or existing system.
Key Items to Review in a SunPower Proposal
- Verify who currently backs the SunPower panel and workmanship warranty given the 2024 restructuring.
- Confirm the installer is an authorized SunPower dealer with current credentials.
- Review panel efficiency and wattage relative to the price per watt in the proposal.
- Understand the SunPower monitoring platform and whether it remains supported.
- Check inverter specifications — SunPower systems may use SunPower, Enphase, or other inverters.
What Robbins Energy Reviews in Your Proposal
A solar proposal contains a lot of information. We help you understand what matters — and what to ask before signing.
System Size (kW)
Is the system sized correctly for your actual usage?
Estimated Annual Production
Do the production estimates match your roof's real sun exposure?
Solar Panel Manufacturer
What brand and efficiency rating are the panels?
Inverter Technology
String inverter, microinverters, or power optimizers — each has trade-offs.
Battery Options
Is battery storage included? What capacity and backup duration?
Warranty Coverage
Panel, inverter, and workmanship warranties vary significantly.
Monitoring Features
How will you track production and catch problems early?
Price Per Watt
The most useful apples-to-apples comparison across proposals.
Financing Terms
Cash, loan, or lease — each has different long-term implications.
Why a Second Opinion Makes Sense
Confirm System Sizing
An undersized system won't offset your bill. An oversized system costs more than necessary. Proper sizing depends on your actual 12-month usage, roof orientation, and shading.
Understand Production Estimates
Production estimates vary based on assumptions. We review the methodology and compare it against local irradiance data for your specific address.
Compare Equipment Options
Solar panels, inverters, and batteries vary in performance, warranty terms, and suitability for Central Valley conditions. We help you understand the equipment in your proposal and what options are available.
Review Long-Term Ownership Costs
Warranties, monitoring, and service availability matter over a 25-year system life. We help you understand what happens if something needs repair.
Upload Your SunPower Proposal
Send us your proposal and we will review the system design, equipment, and pricing at no charge. No obligation.
Equipment We Install, Service, and Compare
We work with all major solar and battery brands. When reviewing your proposal, we can compare the proposed equipment against alternatives we install and service.
Inverters
Batteries
NEM 2.0 vs NEM 3.0 — What It Means for Your Proposal
NEM 2.0
Systems interconnected before April 15, 2023 are grandfathered on NEM 2.0 for 20 years. If you have an existing system, your export rate is protected.
NEM 3.0
New systems interconnected after April 15, 2023 are on NEM 3.0. Export rates are lower, which means battery storage has a stronger financial case.
Battery Storage Under NEM 3.0
With NEM 3.0, storing solar energy and using it during peak evening hours (4–9 PM) is more valuable than exporting it. A properly sized battery can significantly improve your system's economics.
SunPower Solar Proposal — Frequently Asked Questions
Can Robbins Energy review my SunPower solar proposal?
Yes. Robbins Energy provides a free review of SunPower proposals, including panel specifications, warranty terms, system sizing, and pricing.
Can Robbins Energy service an existing SunPower solar system?
Yes. We service existing SunPower installations, including panel replacement, inverter service, and battery additions. We work on SunPower systems regardless of who originally installed them.
What happened to SunPower warranties after the 2024 restructuring?
SunPower filed for bankruptcy in 2024. Warranty obligations for existing customers were transferred to SunStrong Capital. If you have an existing SunPower system or are considering a SunPower proposal, we recommend verifying current warranty coverage directly.
Are SunPower panels worth the premium price?
SunPower panels offer high efficiency, which can be valuable on roofs with limited space. Whether the premium is justified depends on your roof size, shading, and energy goals. Robbins Energy can compare SunPower panel specifications against other high-efficiency options in your proposal.
We Service Existing Solar Systems — Regardless of Installer
If you already have solar and need service, we can help — even if we did not install your system.
Serving Central California
Get Your Free Solar Proposal Review
Bring us your proposal — or upload it below. We will review the system design, equipment, pricing, and production estimates at no charge. No pressure, no obligation.
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