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Best solar companies California Momentum Solar
Momentum Solar Reviews
California. This profile is built from public installation records and published ratings, not paid placement.
1,002verified installs in California utility records*
20recent installs, 2025-26 records*
2017first year in county records
5.0/10Solar.com Score · 1,467 reviews synthesizedSolar.com Installer Score
One score, computed the same way for every installer. We read the full text of all 1,467 published Momentum Solar reviews across every platform and measure what customers actually report. Not a survey. Not a sample. Never for sale.Solar.com Installer Score
5.0/10
Synthesized from 1,467 published customer reviews.
Google 3.6★ · 1,467 reviews
Updated September 12, 2026 · No installer can pay to change this score · How scores work →
Sales IntegrityHow clearly and honestly the company explains the system, contract, savings, and incentives before you sign.4.6
521 reviews speak to this · 265 praise · 252 complaints
Price TransparencyHow well the final price, financing terms, and incentive guidance match what customers were led to expect.2.9
143 reviews speak to this · 31 praise · 112 complaints
CommunicationHow reliably the company keeps customers informed and answers questions across sales, installation, and service.3.5
560 reviews speak to this · 222 praise · 338 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.3.8
279 reviews speak to this · 109 praise · 160 complaints
WorkmanshipThe quality, professionalism, neatness, and property care of the physical installation.5.8
363 reviews speak to this · 280 praise · 82 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.4.7
161 reviews speak to this · 51 praise · 108 complaints
How Momentum Solar compares: ranked #234 of 240 scored California solar installers, by Solar.com Installer Score.
Compare California installer reviews →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.
Where Momentum 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.
| County | Verified installs | Recent 2025-26 | Active since | Median system | % leased | County rankingLink to the county ranking page. This company's rank on this page is its Solar.com Installer Score rank, shown above. |
|---|---|---|---|---|---|---|
| San Diego County | 258 | 0 | 2017 | 4.7 kW | 5.4% | See county ranking → |
| Los Angeles County | 169 | 0 | 2019 | 5.6 kW | 0.0% | below ranking floor (under 250 installs) |
| San Bernardino County | 124 | 0 | 2019 | 4.4 kW | 0.0% | below ranking floor (under 250 installs) |
| Kern County | 100 | 15 | 2024 | 3.4 kW | 92.0% | below ranking floor (under 250 installs) |
| Orange County | 91 | 0 | 2017 | 5.0 kW | 9.9% | below ranking floor (under 250 installs) |
| Riverside County | 75 | 0 | 2019 | 6.3 kW | 0.0% | below ranking floor (under 250 installs) |
| Alameda County | 41 | 0 | 2021 | 4.2 kW | 0.0% | below ranking floor (under 250 installs) |
| Contra Costa County | 40 | 0 | 2021 | 3.3 kW | 0.0% | below ranking floor (under 250 installs) |
| Solano County | 38 | 0 | 2021 | 3.0 kW | 0.0% | below ranking floor (under 250 installs) |
| Stanislaus County | 38 | 1 | 2024 | 3.4 kW | 100.0% | 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.
About Momentum Solar
Company background from published business information and licensing records.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 2026.5
2017
15
'18
49
'19
41
'20
445
'21
127
'22
97
'23
216
'24
29
'25
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
What do customers say in Momentum Solar reviews?
We analyzed 1,204 published customer reviews of Momentum Solar in full. The company's Solar.com Installer Score is 5.0/10, 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 Momentum Solar installed?
Momentum Solar appears as installer of record on 1,002+ 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 Momentum Solar's pricing?
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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.