Best solar companies California Infinium Solar

Infinium Solar Reviews

Based in Campbell, CA. This profile is built from public installation records and published ratings, not paid placement.

1,315verified installs in California utility records*
391recent installs, 2025-26 records*
2018first year in county records
8.7/10Solar.com Score · 450 reviews analyzed

Solar.com Installer Score for Infinium Solar

One score, computed the same way for every installer. We read the full text of all 450 substantive published Infinium Solar review texts across every platform and measure what customers actually report. Not a survey. Not a sample. Never for sale.

Solar.com Installer Score

8.7/10

Blends the six category scores (70%) with the recency-weighted star record (30%).

Synthesized from 450 substantive customer review texts (465 published reviews collected).

Google 4.9★ · 349 reviewsYelp 4.7★ · 116 reviews

Updated September 28, 2026 · No installer can pay to change this score · How scores work →

Read what customers actually say ↓
Review star recordRecency-weighted star ratings across platforms, converted to a 0-10 signal before it is blended into the headline Solar.com Score.10.0

recency-weighted star ratings across platforms

Sales IntegrityHow clearly and honestly the company explains the system, contract, savings, and incentives before you sign.8.1

133 reviews speak to this · 128 praise · 5 complaints

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.7.2

63 reviews speak to this · 56 praise · 7 complaints

CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.8.4

293 reviews speak to this · 275 praise · 18 complaints

Timeline ReliabilityHow well the company manages the path from contract through permits, installation, inspection, and turn-on — without the customer having to chase it.7.6

151 reviews speak to this · 134 praise · 17 complaints

WorkmanshipThe quality, professionalism, neatness, and property care of the physical installation.8.4

194 reviews speak to this · 182 praise · 11 complaints

Long-Term SupportHow well the system performs after turn-on, how the company handles monitoring, warranty claims, and service calls — and its staying power to honor them.9.1

157 reviews speak to this · 143 praise · 11 complaints

#31 of 678 scored in California by Solar.com Installer Score

How does Infinium Solar compare where you live? Rankings are local; an installer that leads one city can trail in the next. See how they rank in your city →

Why this differs from star ratings: most five-star reviews say “great company” and stop, and star averages reward that. These category scores only count reviews with concrete evidence, weighted by recency and the reviewer’s track record. A company can hold a strong star average while specific categories score lower; that gap is usually where the real story is. Categories with more complaints than praise are the questions worth asking any bidder, not necessarily dealbreakers.

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Where Infinium Solar builds

County-by-county activity from CPUC records through May 2026.

What this data covers: *Counts on this page, including the totals up top, come from investor-owned-utility interconnection records (SCE, SDG&E, PG&E). Work in municipal-utility territory, such as LADWP or city utilities, and outside California does not appear here, so this company's true totals are higher than shown. Unlike the county rankings, this profile also shows counties below the 250-install ranking floor.

CountyVerified installsRecent 2025-26Active sinceMedian system% leasedCounty rankingLink to the county ranking page. This company's rank on this page is its Solar.com Installer Score rank, shown above.
Santa Clara County99227420186.9 kW0.0%See county ranking →
San Mateo County1656920197.0 kW0.0%below ranking floor (under 250 installs)
Alameda County742120186.3 kW1.4%below ranking floor (under 250 installs)
Santa Cruz County631520185.9 kW0.0%below ranking floor (under 250 installs)
Contra Costa County211220186.9 kW0.0%below ranking floor (under 250 installs)

% leased counts systems recorded as third party owned (lease or power purchase agreement); the remainder are customer owned. Median system size is the middle system this company installed in that county. Star ratings and review counts are from Google.

Infinium Solar reviews: what customers say

An independent synthesis of published customer feedback across Google and Yelp, updated September 23, 2026. Green marks praise, amber mixed experiences, red complaints.

Sales & proposal integrity

Sales Integrity8.1/10

Reviewers mostly describe a clear, straightforward sales process, with several saying proposals, design work, and upfront expectations were handled well. A small set of complaints centers on slow follow-up for quote details and misunderstandings about what was included in the initial scope.Solar.com's composite of published customer feedback, not a customer quote

Clear, low-pressure sales experience. Many reviewers say the sales process felt honest and upfront, with no pressure and a strong focus on explaining the project clearly. Several also mention that design and permitting support were handled well from the start. Representative review excerpt: "They told me upfront that the repair might not be completed before year-end, but they understood the financial burden I was facing with my system down and never pressured me..."

Strong proposal and design support. Customers frequently describe the team as organized in shaping the proposal and layout, with some calling out careful planning and helpful explanation of the work involved. Representative review excerpt: "Infinium Solar did an AMAZING job designing the layout, getting permits, ensuring everything is installed and setup correctly to make our home fully independent of the grid."

Occasional scope and quote confusion. A small number of reviewers report delays getting quote details or say they learned later that some planning or documentation was not included the way they expected. These complaints appear less common than the praise, but they do show up in the corpus. Representative review excerpt: "Instead of moving forward with the project, Infinium indicated that in order to draw up plans, which I had assumed were already part of the package, and draw up a..."

Price & financing transparency

Price Transparency7.2/10

The main complaints involve billing inconsistencies, delayed pricing updates, and some surprises tied to project scope or timing.Solar.com's composite of published customer feedback, not a customer quote

Often viewed as competitively priced. Some also mention lower electric bills after the system went live, which reinforced the sense that the purchase made sense for them. Representative review excerpt: "Their communication was clear, their price was competitive, and they worked seamlessly with SMUD (and PG&E for others) to ensure everything was permitted and running smoothly."

Some customers report clear pricing adjustments. A few reviewers say the company handled roof-specific or project-specific changes with only modest adjustments to the original quote. Those accounts suggest some flexibility when installation conditions differed from the initial plan. Representative review excerpt: "As a local installer with experience installing on other roofs like ours, Infinium was able to install with only a small change order on the original quote to deal with..."

Billing and quote clarity issues for a minority. A smaller set of reviewers reports incorrect billing, delayed quote updates, or added charges that were not initially clear. These comments point to occasional friction around price transparency and project accounting. Representative review excerpt: "There were repeated examples of internal miscommunication: * Incorrect anchor information * Wrong anchors installed * Incorrect billing * Conflicting instructions from different teams I frequently had to identify problems..."

Communication & coordination

Communication8.4/10

Communication is a relative strength in the review corpus, with many customers praising responsiveness, follow-through, and help navigating city or utility steps. Still, some reviewers describe gaps in updates, slow follow-up, or missed appointments that made coordination frustrating.Solar.com's composite of published customer feedback, not a customer quote

Responsive support and active follow-up. Many reviewers say staff responded quickly, kept them informed, and stepped in to solve problems when they came up. Support and tech contacts are often described as helpful in moving issues forward. Representative review excerpt: "Jiel (Customer Support) followed up quickly and Dimitri from Tech Support immediately came to my home and resolved the problem."

Helpful project ownership. Several customers describe the team as taking ownership of city-facing coordination and other handoffs, which made the process feel more manageable. Reviews also mention steady progress through difficult or multi-step projects. Representative review excerpt: "They handled all the heavy lifting with the city, seamlessly managing the plan design reviews and following through until everything was officially signed off."

Some follow-up and scheduling misses. A minority of reviewers say they had to repeatedly follow up for pricing updates or experienced no-shows and slow progress. These complaints suggest that communication can be uneven on more complicated projects. Representative review excerpt: "Nobody called, texted, or emailed so after 30 minutes of waiting, I called and spoke to Alvin to let them know nobody came at my scheduled day and time."

Timeline reliability

Timeline Reliability7.6/10

Timeline feedback is mixed-to-positive. Many reviewers say the process moved smoothly through permits, inspections, and activation, but others report significant delays between milestones or delays tied to city coordination.Solar.com's composite of published customer feedback, not a customer quote

Smooth end-to-end progress for many projects. Several reviewers say the project moved steadily from design through inspection, with clear updates at each stage. These customers describe a process that stayed organized and reached completion without major surprises. Representative review excerpt: "They kept us in the loop through every phase--from the initial design and scheduling to installation and the final inspection."

Some projects completed efficiently. A number of reviewers describe surprisingly quick turnaround once the work began, including projects that reached installation and sign-off in a short window. Those accounts indicate that the timeline can move well when coordination goes smoothly. Representative review excerpt: "The entire process was super smooth - it took my original installer 3 weeks to just give me a quote and the actual installation / replacement would take another 2..."

Delays between approval and install. A smaller set of reviewers report long waits after permit approval or delays tied to city communication and follow-through. These comments show that schedule reliability is not uniform across all jobs. Representative review excerpt: "However, there was a five-week gap between permit approval and panel installation, even though the installation itself only took one day."

Workmanship & site care

Workmanship8.4/10

Most reviewers describe solid installation quality, professional crews, and careful handling of complex projects. The complaints are less common, but they include roof damage, cleanup concerns, and some inspection-related issues.Solar.com's composite of published customer feedback, not a customer quote

Professional crews and careful installs. Many customers praise the installation crews for being meticulous, professional, and capable of handling complex battery, panel, and trenching work. Reviews also mention strong site visits and attention to detail during the job. Representative review excerpt: "I'd like to give a shout out to Juan, Ernesto, and crew for the meticulous installation of batteries, conduits and panels, Ryan and Edgar who made several site visits to..."

Complex projects handled well. Several reviewers say the team managed multi-part jobs such as roof-related removals, re-installs, and battery additions without major trouble. These accounts suggest solid workmanship on more complicated sites. Representative review excerpt: "Infinum also accommodated take-down and re-install of the solar panels as we were replacing the roof (it added to complexity of the project)."

Some damage and finish issues reported. A minority of reviewers say the work created roof damage or left follow-up items that needed correction afterward. These complaints indicate that site care is generally well regarded but not flawless. Representative review excerpt: "The installation team also damaged our roof during installation, requiring my roofer to repair the roof membrane afterward."

Long-term support & performance

Long-Term Support9.1/10

Long-term support and post-install performance are among the strongest themes in the reviews. Many customers say their systems produced well over time and that support staff helped resolve monitoring, inverter, or repair issues when needed, though a smaller group reports lingering troubleshooting or post-install problems.Solar.com's composite of published customer feedback, not a customer quote

Systems often reported to run well over time. Many reviewers say their systems continued working well after installation, including long-running setups that performed reliably for years. Some also mention strong production or stable battery-backed performance. Representative review excerpt: "We used Infinium Solar services before to install a 5KwH Solar system in our home, which worked flawlessly for many years."

Helpful post-install repair support. Several customers describe the team as responsive when post-install issues came up, with staff working through repairs or system concerns until things were back to normal. Those reviews suggest solid support after activation. Representative review excerpt: "Update after writing my review yesterday we finally got our concerns, taking care of and our inverter is back to normal."

A few unresolved service concerns. A smaller number of reviewers report lingering troubleshooting, monitoring concerns, or post-install performance drops after repair work. These reports are less common than the praise, but they show that service outcomes can vary after turn-on. Representative review excerpt: "I have to rely on Alvin, Jiel, and few field technicians - Jonah, Ruben to troubleshoot and get the system working."

Bottom line: Overall, reviewers give Infinium Solar a generally positive profile, with especially strong feedback on communication, workmanship, and post-install support. The most common frustrations involve timeline delays, some pricing or billing confusion, and occasional follow-up issues during the planning and permitting stages.

How this is built: category scores and summaries weigh the company's full published rating record (350 Google reviews averaging 4.9 stars), the most recent and most relevant review texts, and recurring feedback themes verified acrossGoogle and Yelp. Ratings and review excerpts from published review sources. Refreshed as new feedback is published. No installer can pay to change it.

About Infinium Solar

Company background from published business information and licensing records.

Also files CPUC records as: "Infinium Solar, Inc.".

Products

Solar

Service area

California. Note: the install counts on this page cover California investor-owned-utility records only.

Work for this company or see something out of date? Profiles can be claimed and corrected: contact partners@solar.com. Placement on solar.com is never for sale.

Recorded installs by year

Residential interconnections statewide in PG&E, SCE, and SDG&E records through May 2026.
23
2018
56
'19
74
'20
121
'21
217
'22
313
'23
154
'24
262
'25
143
'26

Important context: this chart shows investor-owned-utility records only. Companies that shift work toward municipal-utility territory (LADWP and city power departments) or other states will show declining bars here even while building steadily elsewhere, and 2025-26 records also lag real installation dates. Treat this as a partial window, not the company's full trajectory.

FAQ about Infinium Solar

What do customers say in Infinium Solar reviews?

We analyzed 450 substantive published customer reviews of Infinium Solar in full. The company's Solar.com Installer Score is 8.7/10, with category-level detail on this page covering sales integrity, price transparency, communication, timeline reliability, workmanship, and long-term support.

How many solar systems has Infinium Solar installed?

Infinium Solar appears as installer of record on 1,315+ residential systems in California investor-owned-utility interconnection records through May 2026. Work in municipal-utility territory or other states does not appear in those public records.

How can I compare Infinium Solar's pricing?

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How we built this data

Methodology: Counts are residential PV interconnections in investor-owned-utility territory (PG&E, SCE, SDG&E) per CPUC Rule 21 public records through May 2026. Postal and name variants are merged. Municipal utility territory such as LADWP, Glendale, Pasadena, Burbank, Anaheim, and Riverside Public Utilities is not included in those CPUC counts. Counts show recorded installations, not quality ratings. Reported costs are self-reported on owned-system interconnections. No installer can pay for placement.

Who we are: Solar.com is a solar marketplace — we connect homeowners with installers and earn a fee when projects move forward. These rankings and scores are computed from public installation records and published customer reviews. No installer can pay for placement, and no installer — including those we work with — can pay to change a score.