Terms and Conditions

§ 1 — Scope

These Terms and Conditions apply to your use of the GRIDWORK platform. By creating an account and/or using the services you agree to these Terms. The version valid at the time the contract is concluded shall apply.

§ 2 — Description of services

GRIDWORK provides a web-based platform for the visualisation and control of photovoltaic, wallbox and related energy components. Average availability is ≥ 99 % per calendar month. There is no claim to permanent availability, in particular in the event of force majeure, maintenance work or disruptions of upstream services.

§ 2a — Tariff optimization, third-party price data & delineation from energy supply

GRIDWORK's tariff and charging optimization is a pure software optimization service: recommending and/or controlling the charging time based on third-party price data and PV availability. GRIDWORK is not an energy supplier, not an electricity provider, not an energy broker or trader and not a metering point operator. No energy supply contract is concluded between GRIDWORK and you through this use; your electricity supply contract exists solely between you and your energy supplier.

Displayed exchange and energy prices (including your surcharge) are non-binding information and optimization values. GRIDWORK assumes no warranty for the accuracy, completeness or availability of price data obtained from third parties (e.g. aWATTar, EPEX Spot) and gives no supply or billing guarantee. No calibration-law-relevant billing by kWh takes place (cf. German Measurement and Calibration Act, MessEG).

§ 3 — Account sign-up (passwordless by default)

Sign-up is passwordless by default: you enter your e-mail address at app.gw4.me/auth, confirm the privacy notice and age confirmation, and receive a login link by e-mail. Clicking this link activates your account (if it does not yet exist) and logs you in. The e-mail address is the unique account identifier.

Optionally, you may later set a password in your profile to additionally use classic password login. A separate username is not required.

Accounts whose login link is never clicked are automatically deleted after no later than 30 days (see privacy notice).

§ 4 — Account security and responsibility for your mailbox

In passwordless mode, the security of your account depends on the security of your e-mail mailbox. You are responsible for protecting your e-mail access against unauthorised use (strong password, two-factor authentication recommended).

If you lose access to the stored e-mail mailbox, your account can no longer be recovered automatically. In that case please contact hallo@gw4.me for a manual review. GRIDWORK accepts no liability for damages resulting from unauthorised access to your e-mail mailbox.

Login links are valid for 10 minutes and can be used only once. For security reasons there is a rate limit of 3 requests per e-mail/hour and 20 per IP address/hour.

§ 5 — Conclusion of contract

The contract between you and GRIDWORK is concluded when you click the login link sent by e-mail. With this click you also confirm the processing of your data in accordance with the privacy notice and the applicability of these Terms. You may terminate the contract at any time without notice period by deleting your account or sending a corresponding e-mail to hallo@gw4.me.

§ 6 — Availability, updates, maintenance

GRIDWORK may continue to develop the platform at any time, in particular to fix security vulnerabilities or to adapt to legal requirements. Functional changes will, where reasonable, be communicated in advance. Maintenance windows are scheduled outside peak usage times where possible.

§ 7 — Liability

GRIDWORK is liable without limitation for damages resulting from intent and gross negligence as well as for damages arising from injury to life, body or health. Otherwise, liability is limited to the contract-typical, foreseeable damage. There is no liability for indirect damages, lost profits or data loss, to the extent permitted by law.

§ 8 — Changes to these Terms

GRIDWORK may amend these Terms to the extent necessary for legal or technical reasons. Material changes will be communicated to you by e-mail at least 30 days before they take effect. If you do not object within this period, the amended Terms are deemed accepted. In the event of objection, the contractual relationship ends when the changes take effect.

§ 9 — Final provisions

German law applies, excluding the UN Convention on Contracts for the International Sale of Goods. Should individual provisions of these Terms be invalid, the validity of the remaining provisions remains unaffected.

Last updated: 2026-05-05 (CR-2026-LEGAL-AGB-MAGICLINK-01); English translation 2026-06-11.