Terms of Service

1. About these terms

These Terms of Service (“Terms”) govern your access to and use of Energy Modeller’s software-as-a-service quoting, modelling, customer-portal and service-management platform (the “Service”), provided by Energy Modeller Ltd, a company registered in England & Wales (“Energy Modeller”, “we”, “us”).

By creating an account or using the Service you agree to be bound by these Terms. If you don’t agree, don’t use the Service.

2. The Service

The Service is a B2B SaaS platform that helps UK solar PV, battery storage and (from Q3 2026) heat-pump installers produce quotes, customer share views, formal contracts, and recurring service plans for their own end customers.

The Service is a tool. It is not a substitute for the installer’s own professional judgement, site survey, MCS-certified design work, or any other regulatory or trade-body obligation (see clause 9).

3. Accounts

• You must be 18+ and authorised to bind your business to these Terms.
• You’re responsible for the security of your account credentials. Magic-link authentication relies on the security of your email inbox.
• One account per business. Multi-user accounts are limited per tier (Solo 1, Growth 3, Studio 10, Enterprise unlimited).
• We may suspend or terminate accounts that breach these Terms (clause 12).

4. Subscriptions, fees and billing

• Free tier remains free, capped at 10 leads per calendar month.
• Paid tiers are billed monthly or annually in advance via Stripe. Prices are listed at /about#pricing.
• Overage above your tier cap is billed at the published per-project rate.
• We may change pricing with 30 days’ notice. Existing paid subscriptions continue at their existing price until the end of the current billing period.
• Refunds are at our discretion; you can cancel anytime and your access continues until the end of the current paid period.

5. Acceptable use

You must not:

• Use the Service to violate any law or third-party rights.
• Upload your end customers’ personal data without a lawful basis under UK GDPR.
• Reverse-engineer, scrape, or extract our underlying models or tariff data for resale.
• Use the Service to send unsolicited bulk communications (“spam”) to your customers.
• Resell or sublicense the Service to other installers without our written agreement.

6. Your data

Your customer data (contact details, quotes, postcodes, etc.) remains your property. We process it as your data processor under UK GDPR — see our Privacy Notice. You can export your data anytime and delete your account to have it removed.

7. Intellectual property

The Service, including its source code, models, dispatch algorithms, tariff catalogues, UI and brand, remains our intellectual property. We grant you a non-exclusive, non-transferable, revocable licence to use the Service for the duration of your subscription.

Your branding (logos, colours, copy) you upload remains yours. You grant us a limited licence to display it within the Service and on customer share views you generate.

8. Limitation of liability

Read this section carefully — it limits our liability to you.

To the maximum extent permitted by law:

• The Service is provided “as is” and “as available” without warranties of any kind, express or implied, including merchantability, fitness for a particular purpose, accuracy, completeness, or non-infringement.
• We do not warrantthat the Service’s outputs (savings projections, payback figures, MCS estimates, tariff comparisons, performance reports) are accurate, error-free, or suitable for any specific purpose. They are modelled estimates based on third-party data (PVGIS, Octopus, etc.) and your inputs. You must verify all outputs before relying on them.
• We are not liable for any loss of profits, revenue, business, goodwill, anticipated savings, contracts, data, or any indirect, special, consequential, exemplary or punitive damages, however arising.
• Our maximum aggregate liability to you under or in connection with these Terms (whether in contract, tort, breach of statutory duty, or otherwise) is capped at the fees you paid us in the 12 months preceding the event giving rise to the claim.
• Nothing in these Terms limits or excludes our liability for death or personal injury caused by our negligence, fraud or fraudulent misrepresentation, or any other liability that cannot be limited under English law.

9. Installer responsibility for compliance & the installed product

The installer is solely responsible for the installed system, all legal & trade-body compliance, and the customer relationship.

You acknowledge and agree that, as a UK installer using the Service:

• You are solely responsible for the quality, safety, suitability and legality of every system you design, quote, sell, install, commission and service for your end customers, regardless of any modelling, recommendation or artifact produced by the Service.
• You are solely responsiblefor compliance with all applicable laws, regulations and trade-body standards, including but not limited to: the MCS scheme and MCS Code of Practice, MIS 3002 (PV), MIS 3005 (heat pumps), MGD 003 / MCS 020, EESS / MIS 3012 (battery storage), the Renewable Energy Consumer Code (RECC) and HIES, the Building Regulations (England & Wales and equivalents in Scotland & Northern Ireland) including Part P (electrical) and Part L (thermal), DNO notification requirements (G98 / G99), the F-gas Regulation (refrigerant work on heat pumps), HSE regulations, the Construction (Design and Management) Regulations 2015, the Consumer Rights Act 2015, the Distance Selling Regulations, UK GDPR (in respect of your customer data), and any other applicable statutory or trade-body requirement.
• The Service’s outputs (estimates, MCS Performance Estimates, audit results, BOM cross-checks, etc.) are not a substitute for your own MCS-certified design review, site survey, professional engineering judgement, or certification work. You must independently verify every figure, specification and recommendation before relying on it in a customer contract.
• The MCS compliance auditorbuilt into the Service runs a defined set of rule-based checks. Passing the auditor does not constitute MCS certification or guarantee MCS-compliance — it is a tool to help you spot common issues before submission. MCS-compliance remains your responsibility.
• You are solely responsible for all contracts, warranties, after-sales service, complaint handling, dispute resolution and refunds between you and your end customers. We are not a party to those contracts.
• The Service may rely on third-party data and services(PVGIS irradiance data, smart-tariff supplier APIs, MCS Product Directory lookups, Anthropic Claude AI, Stripe payment processing, etc.). We do not warrant the accuracy or availability of these third-party services and are not liable for failures or inaccuracies originating in them.

10. Indemnification

You agree to indemnify and hold harmless Energy Modeller, its officers, employees and contractors from and against any claim, loss, liability, cost or expense (including reasonable legal fees) arising out of or in connection with:

• your breach of these Terms;
• any system you design, quote, sell, install or service for an end customer, including any claim by the end customer or any regulatory or trade body in respect of that system;
• your processing of any end-customer personal data via the Service.

11. Third-party services

The Service integrates with third-party services (Reonic, OpenSolar, Easy PV, Stripe, QuickBooks, Xero, Anthropic Claude, Resend, n3rgy, GoCardless, and others). Your use of those services is governed by their own terms; we are not responsible for their performance.

12. Suspension & termination

You can cancel anytime from your account page. We can suspend or terminate your account for breach of these Terms, non-payment, or risk to other users / our infrastructure. On termination, your access stops and your data is deleted 30 days after the subscription ends (subject to any retention required by law).

13. Changes to these Terms

We may update these Terms. Material changes will be emailed to your account address at least 30 days before they take effect. Continued use after the effective date constitutes acceptance.

14. Governing law & disputes

These Terms are governed by the laws of England & Wales. Any dispute is subject to the exclusive jurisdiction of the courts of England & Wales.

15. Contact

For questions about these Terms email hello@energymodeller.com.