Solar Upgrade & Inverter Replacement · Fresno County & Madera County
Upgrade Your
Aging Solar System
If your solar system was installed more than eight years ago, it may be running on an inverter that's approaching the end of its useful life — quietly costing you production every month. We're a local Central Valley contractor specializing in solar system upgrades, inverter replacement, battery integration, and monitoring restoration for Fresno County and Madera County homeowners. Licensed contractor #1063682.
We work on all major brands — Enphase, SolarEdge, SMA, Fronius, Sungrow, GoodWe, Growatt, Solis, APsystems, Hoymiles, and more — including systems from installers who are no longer in business. If your original company is gone, we can step in, assess your system, and get it working again.
Signs Your System Needs an Upgrade
Most solar systems installed in Fresno, Clovis, and Madera before 2018 are now running on aging inverters, outdated monitoring, and equipment that wasn't designed for today's energy demands. These are the most common warning signs we see in Central Valley homes.
Inverter Is 10+ Years Old
String inverters typically last 10–15 years. An aging inverter is the most common cause of declining production and system failures.
True-Up Bill Is Higher Than Expected
If your annual true-up bill has grown significantly, your system may be underproducing due to equipment degradation or increased household energy usage.
Production Has Declined
Solar panels degrade slowly over time, but a sudden or significant production drop usually indicates an equipment issue that can be addressed.
Monitoring No Longer Works
Older monitoring systems go offline as manufacturers discontinue support. Modern inverters include better monitoring and remote diagnostics.
No Battery Backup
Systems installed before 2020 rarely included battery storage. Adding a battery now provides outage protection and better energy management.
Energy Usage Has Grown
Added an EV, HVAC upgrade, or home addition? Your original system may no longer offset your usage. Expansion may be possible.
What We Upgrade
Inverter Replacement
- String inverter replacement — SMA, Fronius, SolarEdge, Sungrow, GoodWe, Growatt, Solis
- Upgrade to Enphase microinverter systems
- Hybrid inverter installation for battery readiness
- Monitoring system restoration — Enphase Enlighten, SolarEdge mySolarEdge
Battery Integration
- Tesla Powerwall retrofit to existing solar
- Enphase IQ Battery AC-coupled integration
- Whole-home vs. partial backup configuration
- PSPS and outage protection setup
System Expansion
- Additional panels on existing racking
- New array on unused roof sections
- Inverter capacity upgrade for expansion
- Utility interconnection amendment
Solar Panel Upgrades & Replacements
- Replace degraded or underperforming panels with modern high-efficiency modules
- Upgrade older 250–300W panels to 400W+ panels for more output from the same roof space
- Swap out damaged panels — cracked glass, delamination, hot spots
- Brand options: Hyundai, JA Solar, Mission Solar, REC, Silfab, and more
- Wiring and conduit inspection and repair
- Mounting hardware assessment and replacement
- Panel cleaning and performance testing
- Full system production audit
True-Up Bill Too High?
Your System May Not Be Keeping Up
PG&E rates have increased significantly over the past several years. A system that offset your bill when it was installed in 2015 may no longer cover your current usage — especially if you've added an EV, upgraded HVAC, or expanded your home.
We assess your current production data, your utility bills, and your household energy usage to identify whether a system upgrade, expansion, or battery addition would meaningfully reduce your true-up bill.
Get a Free System AssessmentSystem installed before 2018
Inverter likely approaching end of useful life
Added EV or HVAC since install
Original system may be undersized for current load
True-up bill over $500/year
System may be underproducing or undersized
No battery backup
No outage protection; limited energy management
Monitoring offline or inaccurate
Can't verify production without working monitoring
Already Have Solar?
Other Services for Existing Solar Owners
Solar Add-On / Expansion
Add panels to an existing system for EVs, home additions, or higher usage.
Learn More →Solar Removal & Reinstall
Panel removal for roof replacements and system decommissions.
Learn More →Battery Backup Retrofit
Add a home battery to your existing solar system.
Learn More →Solar Maintenance
Inspection, cleaning, and performance diagnostics.
Learn More →Frequently Asked Questions
Solar System Upgrades by City
We serve Fresno County, Madera County, and surrounding communities throughout the Central Valley.
Get a Free Solar System Assessment
We evaluate your existing system, identify what's limiting production, and give you honest recommendations. No pressure — just accurate information. Serving Fresno, Clovis, Madera, and 70+ Central Valley communities. Licensed contractor #1063682.