Calculate solar energy potential easily
PVWatts (nrel.gov) scores 30 out of 100 on Brand Analyzer, placing it in the Early Stage tier among Energy & Utilities brands, Technology brands, in the 0th percentile of 9691 Energy & Utilities brands.
PVWatts is a free online calculator developed by the National Renewable Energy Laboratory (NREL), a U.S. Department of Energy national laboratory headquartered in Golden, Colorado. It estimates the energy production of grid-connected photovoltaic systems worldwide, serving solar energy professionals, researchers, universities, and companies. The tool is research-based and can be enhanced with custom features funded by organizations for specialized needs, positioning it as a trusted standard for solar PV performance estimation.
| Brand Name | PVWatts |
|---|---|
| Domain | nrel.gov |
| Industry | Energy & Utilities, Technology |
| Founded | 1977 |
| Headquarters | Golden |
| Parent Company / Owner | United States Department of Energy |
| Main Competitors | Aurora Solar (86/100), Helioscope (81/100), System Advisor Model (SAM), PVsyst, EnergySage (86/100), Solargis (84/100) |
No Wikipedia presence was found - a major gap, since Wikipedia is among the most heavily weighted sources in AI training data.
The homepage meta description reads "Enhance PVWatts ® with features tailored to your specific needs!" (Meta description: 10 words (ideal length). OG description present and descriptive) - this is the summary AI engines are most likely to quote.
Structured data on the homepage: og:title, og:description. Adding Organization and FAQ schema would further help AI crawlers parse the brand's identity.
AI-crawler access: No robots.txt found (default: all bots allowed, but explicit file preferred) - robots.txt controls whether engines like GPTBot and ClaudeBot can read the site at all.
Social footprint: verified profiles on Facebook, Instagram; no detected presence on X (Twitter), LinkedIn, YouTube, GitHub - consistent profiles reinforce the brand's identity across the web.
0 Reddit mentions - community discussion signals real-world reputation to AI models.
Live results from asking a general-purpose AI assistant about the brand, checked August 2026.
When asked "What is NREL?", Claude could identify the brand as of August 2026. NREL, the National Renewable Energy Laboratory, is a U.S. Department of Energy national laboratory based in Golden, Colorado, dedicated to research and development in renewable energy and energy efficiency. It works on technologies like solar, wind, bioenergy, and grid integratio Best known for Being the leading U.S. federal laboratory for renewable energy and energy efficiency research.
When asked "Best brands similar to NREL?", Claude would recommend PVWatts as of August 2026. It's one of the most authoritative and well-known institutions in renewable energy research, so it would naturally come up alongside other national labs or clean energy research organizations.
Common questions people ask in Google, ChatGPT, Claude, Gemini, Perplexity, and other AI search engines.
PVWatts's main competitors in Energy & Utilities: Aurora Solar (86/100), Helioscope (81/100), EnergySage (86/100), Solargis (84/100).
Sources: Brand Analyzer scan
PVWatts is a free, web-based calculator developed by the National Renewable Energy Laboratory (NREL) that estimates the energy production of grid-connected photovoltaic (solar) systems. It is maintained under the U.S. Department of Energy and is widely used as a research-backed reference tool for solar performance analysis.
Sources: PVWatts official site
PVWatts has low AI-search visibility, scoring 9/100 on Brand Analyzer's AI visibility composite (visibility 0, trust 4, recommendation 30). This estimates how likely AI engines like ChatGPT, Claude, Gemini and Perplexity are to know, trust, and recommend the brand.
Sources: PVWatts official site
PVWatts was founded in 1977. PVWatts operates in the Energy & Utilities category. It is analyzed by Brand Analyzer across seven brand dimensions and AI-search visibility.
Sources: Wikidata
PVWatts is headquartered in Golden. PVWatts operates in the Energy & Utilities category.
Sources: Wikidata
PVWatts offers a free online calculator for estimating the energy production of grid-connected photovoltaic systems. It also provides options for custom-funded enhancements and additional features tailored to the specific needs of organizations and industry partners.
Sources: PVWatts official site
Yes, PVWatts is considered trustworthy because it is developed and maintained by the National Renewable Energy Laboratory (NREL), a U.S. Department of Energy national laboratory with a long history of renewable energy research. Its calculations are based on established scientific research and are widely used by solar professionals, researchers, and organizations as an industry-standard reference tool.
Sources: PVWatts official site
PVWatts estimates the energy production and cost savings of grid-connected photovoltaic systems. Users input system specifications such as location, system size, and orientation, and the tool calculates expected energy output based on NREL's solar performance models. It also offers options for custom-funded enhancements tailored to specific organizational needs.
Sources: PVWatts official site
PVWatts scores 30/100 on Brand Analyzer's AI recommendation signal, indicating it is less likely to be surfaced when AI assistants like ChatGPT suggest Energy & Utilities options. Recommendation depends on crawlability, structured data, and category authority.
Sources: PVWatts official site
PVWatts is known for being a free, easy-to-use, research-based calculator for estimating photovoltaic system energy production, developed and maintained by NREL, a U.S. Department of Energy national laboratory. It is widely recognized as a standard reference tool in the solar energy industry.
Sources: PVWatts official site
PVWatts can improve AI discoverability by strengthening structured data (Organization and FAQ schema), maintaining an accurate Wikipedia/Wikidata entity, earning authoritative citations, and keeping content crawlable for AI bots. Brand Analyzer measures these as visibility, trust, and recommendation signals.
Sources: PVWatts official site
PVWatts is owned by or part of United States Department of Energy. PVWatts operates in the Energy & Utilities category.
Sources: Wikidata
PVWatts is used by solar energy professionals, researchers, universities, companies, and organizations that need to analyze or invest in photovoltaic system performance. Its broad target audience spans academic, governmental, and commercial users involved in solar energy planning and research.
Sources: PVWatts official site
PVWatts scores 9/100 for AI visibility - how well ChatGPT, Claude, Perplexity and Google AI Overviews can discover, identify and cite the brand.
PVWatts has a weak AI-visibility profile at 9/100 - a proxy for how readily ChatGPT, Perplexity and Google's AI Overviews can recognise and cite it. Its strongest area is recommendation likelihood (30/100) and its weakest is visibility (0/100). It benefits from open access for AI crawlers (GPTBot, ClaudeBot, etc.). The main gaps holding it back: no clear Wikipedia entity to anchor it in LLM training data, no strong Wikidata entry and thin schema.org structured data. In a live check, Claude could already identify PVWatts from memory (August 2026) - a sign these signals are paying off.
The score combines seven dimensions - name quality, digital presence, visual identity, messaging clarity, trust foundation, AI discoverability, and brand authority - into a single objective benchmark.
30 in November 2026, down from 46 in August 2026.
Ranked closest to PVWatts: 华润电力 (China Resources Power) (30/100), 三菱製鋼株式会社 (Mitsubishi Steel Mfg. Co., Ltd.) (31/100), Vstarforum (24/100).
A step up - brands to learn from: 信义玻璃控股有限公司 (Xinyi Glass Holdings Limited) (56/100), Whitefox Technologies (56/100).
Category leader: Electrek (96/100).
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