Solar Proposal Review
Received a Solar Proposal From Enphase? 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 Enphase Proposals
Enphase is the most widely specified microinverter brand in Central California. When a proposal lists Enphase IQ8 or IQ8+ microinverters, it means each panel has its own inverter mounted on the roof. This affects shading performance, monitoring granularity, warranty coverage, and long-term maintenance costs. Robbins Energy installs and services Enphase systems and can review any proposal specifying Enphase equipment.
Key Items to Review in a Enphase Proposal
- Confirm which IQ generation is specified — IQ7, IQ8, or IQ8+ — each has different power ratings.
- Review whether the proposal includes Enphase IQ Battery storage or a third-party battery.
- Check that the Enphase Envoy or IQ Gateway monitoring device is included in the proposal.
- Confirm the 25-year microinverter warranty is explicitly stated and transferable.
- Ask whether the installer is an Enphase Platinum or Gold installer — affects warranty support.
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 Enphase 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.
Enphase Solar Proposal — Frequently Asked Questions
Is Enphase a good choice for solar in Fresno and the Central Valley?
Enphase microinverters perform well in the Central Valley. The per-panel architecture means partial shading from trees or roof obstructions affects only the shaded panel, not the whole string. For most residential roofs in Fresno, Clovis, and Visalia with minimal shading, both Enphase and string inverters perform comparably. Robbins Energy can review your specific roof and proposal to help you understand which approach makes sense.
What should I look for in an Enphase proposal?
Key items: the specific IQ model number, whether an IQ Gateway monitoring device is included, battery storage model if applicable, the 25-year microinverter warranty documentation, and the installer's Enphase certification level. Robbins Energy reviews all of these as part of a free proposal review.
Does Robbins Energy install Enphase systems?
Yes. Robbins Energy installs and services Enphase microinverter systems throughout Fresno County, Tulare County, Kings County, and Madera County. We can also service existing Enphase systems installed by other contractors.
What is the difference between Enphase IQ7 and IQ8?
The IQ8 generation introduced Sunlight Backup — the ability to power your home directly from solar panels during a grid outage without a battery. IQ7 microinverters do not have this capability. If backup power is important to you, confirm whether the proposal specifies IQ8 or IQ8+ microinverters.
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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