Best solar companies California Solar Optimum Design & Electrical

Solar Optimum Design & Electrical Reviews

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

10,431verified installs in California utility records*
1,399recent installs, 2025-26 records*
2011first year in county records
8.2/10Solar.com Score · 410 reviews analyzed

Solar.com Installer Score for Solar Optimum Design & Electrical

One score, computed the same way for every installer. We read the full text of all 410 substantive published Solar Optimum Design & Electrical review texts across every platform and measure what customers actually report. Not a survey. Not a sample. Never for sale.

Solar.com Installer Score

8.2/10

Synthesized from 410 substantive customer review texts (435 published reviews collected).

Google 4.7★ · 391 reviewsYelp 3.9★ · 44 reviews

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

Read what customers actually say ↓
Sales IntegrityHow clearly and honestly the company explains the system, contract, savings, and incentives before you sign.7.0

166 reviews speak to this · 140 praise · 26 complaints

Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.5.4

93 reviews speak to this · 57 praise · 29 complaints

CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.7.5

285 reviews speak to this · 241 praise · 44 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.7.4

179 reviews speak to this · 148 praise · 28 complaints

WorkmanshipThe quality, professionalism, neatness, and property care of the physical installation.8.2

164 reviews speak to this · 150 praise · 14 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.8.8

114 reviews speak to this · 104 praise · 10 complaints

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

How does Solar Optimum Design & Electrical 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 Solar Optimum Design & Electrical 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.
Los Angeles County2,71340820118.3 kW1.4%See county ranking →
Orange County1,35015320128.3 kW0.7%See county ranking →
San Diego County1,2405820156.1 kW0.0%See county ranking →
Santa Clara County1,03114620197.0 kW0.0%See county ranking →
Riverside County6768920139.0 kW0.7%See county ranking →
Alameda County65010120196.5 kW0.3%See county ranking →
San Bernardino County6319720158.8 kW0.6%See county ranking →
Contra Costa County5358820197.8 kW0.0%See county ranking →
Ventura County4797520158.0 kW1.1%See county ranking →
San Mateo County3144820197.3 kW0.0%See county ranking →

% 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.

Solar Optimum Design & Electrical reviews: what customers say

An independent synthesis of published customer feedback across Google and Yelp, updated September 28, 2026. Green marks praise, amber mixed experiences, red complaints.

Sales & proposal integrity

Sales Integrity7.0/10

Reviewers most often describe the sales process as clear, responsive, and low-pressure, with many saying their questions were answered patiently and proposals were explained well. A smaller set of complaints centers on performance expectations, pricing promises, and contract-related misunderstandings, so this category reads positive overall but not spotless.Solar.com's composite of published customer feedback, not a customer quote

Clear, patient sales process. Many reviewers say the sales team took time to explain the process, answered questions carefully, and did not make them feel rushed or pressured. Representative review excerpt: "They took the time to explain every step of the process clearly, answered all my questions patiently, and never made me feel rushed or pressured."

Helpful proposal support. Some reviewers report that sales staff were responsive and helped them evaluate quotes or move quickly when timing mattered. Representative review excerpt: "Shout out to Joe in sales who helped us make the decision between the three bids we gathered."

Expectation and promise concerns. A smaller group of reviewers describe disputes tied to promised savings, written commitments, or contract expectations not matching the final outcome. Representative review excerpt: "Kevin C promised me enough energy, but im paying double now."

Price & financing transparency

Price Transparency5.4/10

Reviewers also describe issues tied to refund handling and incentive timing, which makes the overall picture mixed to negative.Solar.com's composite of published customer feedback, not a customer quote

Pricing pricing for some customers. Some reviewers say the quoted price was attractive and that the overall value felt fair for the service received. Representative review excerpt: "Their price was 1/3 the price quoted by the company handing out brochures at the membership warehouse store."

Financing questions handled inconsistently. A few reviewers report confusion around financing terms or rate details, though they also note that staff tried to address the issue when it came up. Representative review excerpt: "There was a bit of confusion on interest rates which Kevin had nothing to do with it however he made it a point to address it and offered a goodwill..."

Deposit and pricing disputes. Reviewers describe complaints about nonrefundable deposits, surprise cost changes, and disagreements over how pricing or reimbursement was handled. Representative review excerpt: "Not to mention, they take a $1000 deposit that they don't refund when they can't followthrough on their estimate, and my new solar guys showed me pictures of how Solar..."

Communication & coordination

Communication7.5/10

Most reviewers describe strong day-to-day communication, with regular updates, responsive project managers, and clear coordination from scheduling through completion. The main complaint pattern is the opposite experience: unanswered calls, unclear ownership, and slow follow-through when projects stalled.Solar.com's composite of published customer feedback, not a customer quote

Frequent updates and responsiveness. Many reviewers say they received regular updates, quick replies, and clear guidance from project managers throughout the process. Representative review excerpt: "Mohi is another power source for the company (no pun intended) 😉 We got daily updates to make the corrections, and then he moved us forward quickly to completion."

Smooth coordination with crews. Some reviewers report that the crews communicated well, showed up on time, and kept the customer informed during the work. Representative review excerpt: "The crews showed up on time, worked hard, communicated well, and cleaned up thoroughly at the end of each day despite the significant amount of work involved."

Unanswered calls and unclear ownership. Other reviewers describe extended periods of poor communication, including unanswered calls and confusion over who was handling the project. Representative review excerpt: "Nobody there ever knows what is going on, nobody returns calls."

Timeline reliability

Timeline Reliability7.4/10

Reviewers often say permitting, sign-offs, and activation moved efficiently, and some note that the process finished faster than expected. Still, a meaningful minority describe delays that stretched for months, missed handoffs, or stalled projects, so timing is generally solid but not guaranteed.Solar.com's composite of published customer feedback, not a customer quote

Permitting and activation often moved quickly. Several reviewers say the process advanced efficiently once permits were issued, with installers arriving promptly and PTO coming sooner than expected. Representative review excerpt: "The planning and the sign-offs all went quickly and efficiently, the installers were there within a week of the permit being issued."

Helpful coordination through closeout. Some customers describe staff stepping in to keep the project moving and getting the system up and running without unnecessary delay. Representative review excerpt: "Big thanks to Gerson in administration for stepping in, handling everything, and making sure my solar got up and running."

Delays and stalled projects. Other reviewers report substantial delays, missed deadlines, or long gaps where the project did not appear to be progressing. Representative review excerpt: "Our battery was installed in March, six months after we were initially told it would be done in December."

Workmanship & site care

Workmanship8.2/10

This category is strongly positive overall. Reviewers frequently describe professional crews, clean work sites, respectful treatment of property, and solid installation quality, while the smaller complaint set focuses on technician skill concerns or less careful site handling.Solar.com's composite of published customer feedback, not a customer quote

Clean, respectful crews. Many reviewers say the crews arrived on time, worked neatly, cleaned up well, and treated the property with respect. Representative review excerpt: "The crew arrived on time, worked cleanly, and treated my property with respect."

Knowledgeable installation work. Some reviewers report that the installers handled concerns well and seemed knowledgeable about the work they were doing. Representative review excerpt: "All the concerns I had were addressed, and the folks that did the work were on time, and knowledgeable about their craft."

Occasional workmanship complaints. A small number of reviewers describe problems with technician skill or less considerate handling of the site and customer property. Representative review excerpt: "They send technicians who don't know the first thing about installing solar."

Long-term support & performance

Long-Term Support8.8/10

This is the strongest-scoring category in the review set. Reviewers frequently describe good system performance, helpful post-install support, and strong warranty or value perceptions, while the few complaints focus on equipment issues or unresolved service requests after installation.Solar.com's composite of published customer feedback, not a customer quote

Strong system performance. Many reviewers say their systems are producing well and meeting their needs after installation. Representative review excerpt: "Our panels are great and we're producing all of our electricity needs while sending back excess to the grid for credit."

Helpful post-install support and warranty. Some reviewers describe strong support after the sale, including clear explanations and confidence in the warranty coverage. Representative review excerpt: "They looked out for my best interest and provided great value, including a very strong warranty."

Service and equipment problems for a few customers. A smaller set of reviewers report equipment breakdowns or support issues after the system was installed. Representative review excerpt: "For starters I was misled by the salesman at the beginning I've had equipment breakdowns I've had to pay because of the equipment breakdowns."

Bottom line: Solar Optimum Design & Electrical earns an overall Solar.com Installer Score of 8.2/10 from 410 substantive reviews. The strongest themes are workmanship and long-term system support, while price and financing transparency is the clearest weak spot. Complaints do appear across several categories, but most review volume is positive, especially around communication, installation quality, and post-install performance.

How this is built: category scores and summaries weigh the company's full published rating record (394 Google reviews averaging 4.7 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 Solar Optimum Design & Electrical

Company background from published business information and licensing records.

Also files CPUC records as: Solar Optimum.

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.
1
2011
3
'12
7
'13
12
'14
44
'15
58
'16
78
'17
262
'18
608
'19
945
'20
1193
'21
2280
'22
2793
'23
837
'24
887
'25
527
'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 Solar Optimum Design & Electrical

What do customers say in Solar Optimum Design & Electrical reviews?

We analyzed 410 substantive published customer reviews of Solar Optimum Design & Electrical in full. The company's Solar.com Installer Score is 8.2/10, 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 Solar Optimum Design & Electrical installed?

Solar Optimum Design & Electrical appears as installer of record on 10,431+ 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 Solar Optimum Design & Electrical'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.