Terms of Service

1. The Service

Solar Design Lab provides a software platform for designing residential solar, storage, and generator plansets, paired with a professional engineering review and stamp by a Florida-licensed Professional Engineer ("PE"). The Platform includes:

• A browser-based design editor with a built-in equipment library, electrical-design tools, and a live design-check engine that validates against the National Electrical Code ("NEC") and the rules of the relevant Authority Having Jurisdiction ("AHJ").
• Generation of stamped plansets, single-line diagrams, bills of materials, and other engineering deliverables.
• Two service modes: self-design (you draft the project in our editor and a Florida PE reviews and stamps it) and full-service (we draft and stamp the project for you).
• A free tier of public engineering calculators that do not require an account.

The PE stamp is a professional opinion issued by a specific Florida-licensed PE under that PE's individual license and the supervision of Solar Design Lab. The PE's license number and verification link are published on our homepage. Plansets stamped for projects outside Florida are fulfilled by appropriately licensed engineers and quoted on a per-project basis.

2. Access and accounts

Access to the Platform is by request. You may apply for access at solardesignlab.com/request-access. We review every application and may decline or revoke access at our discretion, including (without limitation) for competing-product evaluation, suspected misuse, or violation of these Terms.

You are responsible for safeguarding your account credentials and for any activity on your account. You must notify us promptly at hello@solardesignlab.com of any suspected unauthorized use. You must be at least 18 years old and using the Platform in the course of a business engaged in solar installation, design, or related services.

3. Pricing and payment

Fees are charged per stamped planset on a flat-rate basis, with discounts at committed monthly volumes. Current pricing is published at solardesignlab.com/pricing. Pricing is subject to change with notice; existing volume commitments will be honored at their stated rate for the remainder of any committed period.

We do not invoice your first stamped planset. If the AHJ rejects a planset we stamped due to a code issue we missed, we will re-engineer and re-stamp the project at no additional cost. This guarantee does not extend to rejections caused by inaccurate or incomplete information you provided, changes to AHJ rules after stamp, scope changes, or matters outside the scope of our review.

Fees are non-refundable once a planset has been stamped. Unstamped projects may be cancelled at no cost.

4. Your content and license to us

You retain ownership of all project data, designs, photos, documents, customer information, and other materials you upload to or create within the Platform ("Your Content"). By submitting Your Content, you grant Solar Design Lab a worldwide, royalty-free, sublicensable license to:

• Deliver the service. Host, store, process, transmit, display, and modify Your Content as needed to provide the Platform, route projects to PEs for review, generate deliverables, and communicate with you and the AHJs you submit to.
• Improve our products. Use Your Content to operate, develop, train, evaluate, and improve the Platform's AHJ rule engine, design-check engine, auto-routing, auto-string, auto-connect, equipment library, AI-assisted design features, and other current or future product capabilities.
• Generate aggregated and de-identified data. Create and use aggregated, anonymized, or otherwise de-identified data derived from Your Content for any lawful purpose, including industry benchmarking, research, publication of anonymized insights, and continued model training. We will not include personally identifiable information about you or your customers in any such aggregated or de-identified outputs.

The license for aggregated and de-identified data survives termination of your account. The license for non-anonymized Your Content terminates when we delete the underlying data in the ordinary course (see Section 9, Termination, and the Privacy Policy for retention specifics).

You warrant that you have all rights necessary to upload Your Content and to grant the licenses above, including the right to share homeowner names, addresses, site photos, and other personally identifiable information ("PII") about your customers. You will obtain and maintain any consents required from your customers under applicable law.

5. PE work product and stamps

A stamped planset constitutes a professional engineering opinion under the personal seal of the reviewing Florida PE. Stamped deliverables are issued to you for the specific project they describe. You receive a perpetual, non-exclusive right to use, reproduce, and submit the stamped deliverables to the relevant AHJ and your customer for permitting, construction, inspection, and record retention purposes.

Stamped deliverables may not be modified after stamping without the reviewing PE's written approval. Any unauthorized modification of a stamped deliverable invalidates the stamp and may constitute a violation of Florida Statutes Chapter 471 (Engineering).

We retain copies of stamped deliverables and the project data on which they were based as required by Florida law and our professional record-keeping policy. This retention is not subject to your right to request deletion under Section 4 or our Privacy Policy.

6. Our intellectual property

The Platform itself, including the editor, AHJ rule engine, design-check engine, equipment definitions, code-derived auto-sizing logic, AI models, templates, brand, and all software, content, and data we provide, is and remains the property of Solar Design Lab. Except for the limited rights expressly granted in these Terms, you receive no license to the Platform.

You may not (a) copy, reverse-engineer, decompile, or create derivative works of the Platform; (b) use the Platform to build a competing product or train a competing model; (c) use the Platform's outputs to seed or train any external generative AI model; (d) scrape, harvest, or extract data from the Platform other than your own project data; (e) circumvent any access, security, or rate-limiting measure; or (f) remove or alter any proprietary notice, including a PE stamp.

7. Acceptable use

You agree not to:

• Submit projects for which you do not have authority to act, or that misrepresent site conditions, equipment, customer information, or scope of work.
• Use the Platform for projects that are illegal under local, state, or federal law, or that you intend to use to fraudulently obtain permits or incentives.
• Upload malware, attempt to disrupt the Platform, or interfere with other users' access.
• Share your account credentials with parties outside your organization, or use a single account to mask multiple independent businesses.
• Use the Platform to evaluate, benchmark, or develop a competing product without our prior written consent.

8. Disclaimers

Platform disclaimer. Except for the express warranty of PE review and stamp set out in Section 3, the Platform is provided "as is" and "as available". To the maximum extent permitted by law, Solar Design Lab disclaims all warranties, express or implied, including warranties of merchantability, fitness for a particular purpose, and non-infringement.

AHJ behavior. Authorities Having Jurisdiction may change their rules, interpret them differently, or require additional information at any time. The Platform reflects our best understanding of AHJ rules as of the design date, but we cannot guarantee approval outside the re-engineer guarantee in Section 3.

Site conditions. Our review is based on the information you provide about the site, equipment, and scope. You are responsible for the accuracy of that information and for any field verification required.

9. Termination

You may terminate your account at any time by emailing hello@solardesignlab.com. We may suspend or terminate your access for any breach of these Terms, for non-payment, or for reasons relating to the integrity, security, or business of the Platform, with or without notice.

On termination: (a) your right to access the Platform ends; (b) you may request an export of Your Content for a period of 30 days after termination; (c) we will delete or de-identify Your Content within 90 days, except for stamped deliverables and supporting project data subject to our PE record-retention obligation under Section 5; and (d) any aggregated or de-identified data derived from Your Content remains usable by us under the perpetual license in Section 4.

10. Limitation of liability

To the maximum extent permitted by law, Solar Design Lab's total cumulative liability arising out of or relating to these Terms or the Platform will not exceed the fees you paid to Solar Design Lab in the twelve (12) months preceding the event giving rise to the claim. In no event will Solar Design Lab be liable for indirect, incidental, special, consequential, or punitive damages, lost profits, or business interruption, even if advised of the possibility of such damages.

Nothing in this Section limits the professional liability of the reviewing PE, which is governed by Florida law and the PE's own professional liability insurance (currently $3M errors-and-omissions coverage carried by ECUIP LLC).

11. Indemnification

You will defend, indemnify, and hold harmless Solar Design Lab and its officers, employees, and PEs from any third-party claim arising out of (a) Your Content, including any claim that Your Content infringes a third party's rights or was uploaded without proper authority, (b) your use of the Platform in violation of these Terms, and (c) your representations to AHJs, customers, or regulators about the work product we delivered.

12. Governing law and disputes

These Terms are governed by the laws of the State of Florida, without regard to its conflict-of-laws principles. You and Solar Design Lab agree to submit any dispute arising under these Terms to the exclusive jurisdiction of the state and federal courts located in Palm Beach County, Florida.

13. Changes to these Terms

We may update these Terms from time to time. When we do, we will revise the "Last updated" date above and, for material changes, send a notice to the email associated with your account. Continued use of the Platform after a change takes effect constitutes acceptance of the revised Terms.

14. Contact

Questions about these Terms can be sent to hello@solardesignlab.com.