GAF Energy Review 2026
GAF Energy manufactures 2 models across solar panels. Efficiency range 12%–15%.
Headquartered in United States · Manufacturing in United States
Founded 2019 by Martin DeBono · Headquartered in San Jose, California, United States
Parent company: Standard Industries (parent of GAF Materials)
GAF Energy at a glance
Certifications: IEC 61215 · IEC 61730 · UL 1703
Warranty: 25-yr product · 25-yr performance
Key milestones
- 2019 Founded as solar arm of GAF/Standard Industries
- 2022 Launched Timberline Solar, the first nailable solar shingle
Source: www.gaf.energy/about · Last updated 2026-05-27
GAF Energy Pros & Cons (data-driven)
+ Pros
- ✓ Average product warranty 25yr exceeds industry baseline 12yr
- ✓ US manufacturing available (Buy American / domestic content benefits)
− Cons
- ✗ Average panel efficiency 13.5% trails industry baseline 21%
- ✗ Weaker heat tolerance (-0.41%/°C vs industry -0.32%/°C)
- ✗ Higher annual degradation 0.63%/yr (industry average ~0.5%/yr)
Pros and cons calculated against industry baselines: 21% panel efficiency, 12yr panel warranty, -0.32%/°C temp coeff, 90% battery RTE.
Current GAF Energy Product List (2)
Solar Panels (2)
| Model | Wattage | Efficiency | Warranty | Verified | Score | Details |
|---|---|---|---|---|---|---|
| Timberline Solar ES | 67W | 15% | 25/25 yr | ✓ | 70 (B) | View → |
| Timberline Solar HD | 45W | 12% | 25/25 yr | — | 65 (C+) | View → |
Spec Sheet Downloads
1 manufacturer-published datasheet available for GAF Energy products. All links go to the official PDF on the manufacturer's website.
- PDF GAF Energy Timberline Solar ES datasheet →https://www.gaf.energy/timberline-solar/
Recent GAF Energy News
SolarSpec does not republish third-party news. For the latest GAF Energy news — product launches, financial filings, recalls, supply-chain updates — search Google News directly.
Search GAF Energy news on Google News →Related Brands
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Frequently Asked Questions
What is the SolarSpec Score for GAF Energy?
GAF Energy earns a SolarSpec Score of 68/100 (Grade C+) based on the weighted average of all 2 models in their 2026 lineup. The score combines efficiency, warranty, temperature coefficient, and verification status. See our /methodology/ page for the full formula.
How many solar products does GAF Energy offer in 2026?
GAF Energy offers 2 products in their 2026 lineup: 2 solar panels.
What is the most efficient GAF Energy solar panel?
The most efficient GAF Energy solar panel is the Timberline Solar ES at 15% efficiency with 67W output. GAF Energy panels range from 12% to 15% efficiency across 2 models.
What warranty does GAF Energy offer on solar panels?
GAF Energy offers up to 25-year product warranty and up to 25-year performance warranty. Average annual degradation across the lineup is 0.63%.
Where are GAF Energy solar panels manufactured?
GAF Energy solar panels are manufactured in United States.
Where can I download GAF Energy datasheets?
We have direct manufacturer-published datasheet links for 1 of 2 GAF Energy products. See the Spec Sheet Downloads section below for direct PDF links.
How we score brands
Every GAF Energy model in our catalog is scored 0-100 using a transparent formula: efficiency (25 pts), product warranty (20 pts), performance warranty bonus (3 pts), temperature coefficient (12 pts), and datasheet verification (5 pts), on a 50-point baseline. The brand-level score is the simple average across all 2 models.
Read the full SolarSpec methodology →