Energy Web Token (EWT): how it works, supply and reviews
In short
- Type
- Energy Web X (EWX): a Polkadot parachain using Nominated Proof-of-Stake.
- Maximum supply
- Fixed supply cap of 100 million EWT.
- Risks and caveats
- Energy Web's own risk notice says EWT may lose its value in part or in full and is not covered by deposit guarantee schemes.
- Checked
- 1 November 2026
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Key facts
- Ticker
- EWT
- Official site
- energyweb.org
Key facts checked on 1 November 2026 against official sources.
What is Energy Web Token
Energy Web Token (EWT) is the native token of Energy Web, a blockchain stack for energy and sustainability markets. EWT launched on the Energy Web Chain in 2019 and now runs on Energy Web X and as an ERC-20 token on Ethereum; it is used for staking, network fees and governance.
Network and consensus
| Parameter | Details |
|---|---|
| Type | Energy Web X (EWX): a Polkadot parachain using Nominated Proof-of-Stake. |
| Consensus | The original Energy Web Chain (EWC) uses Proof-of-Authority. |
| Smart contracts | EWC is an open-source public chain derived from Ethereum technology. |
| Runs on | EWT is also an official ERC-20 token on Ethereum, not a wrapped token. |
| Block producers | EWX block producers are collators, selected by stake and subject to slashing. |
| Purpose | Verification infrastructure for energy and sustainability markets. |
Supply and issuance
| Parameter | Details |
|---|---|
| Maximum supply | Fixed supply cap of 100 million EWT. |
| Staking rewards | Delegators share rewards and slashing risk with their collator; rewards are variable. |
What EWT is used for
- Staking: EWT is staked or delegated to EWX collators, and liquid staking issues stEWT.
- On the Energy Web Chain, EWT pays transaction fees and compensates validators.
- Network fees on Energy Web.
- Governance: on-chain governance by token holders on EWX.
- Verified Compute Cloud operators stake EWT and earn fees for running methodologies.
Who develops and governs Energy Web Token
- Foundation
- Energy Web Foundation (EWF), a global non-profit, stewards the platform; it says it does not control the platform or the token.
- Legal entity
- energyweb.org is run by Energy Web AG, Zug, Switzerland (CHE-374.087.679), a subsidiary of the Swiss non-profit Energy Web Foundation.
- Governance
- Network governance is moving from EWC validators to EWX with on-chain governance by all token holders.
- Open source
- Source code is published by the Energy Web Foundation organisation on GitHub.
- Ecosystem
- Enterprises, registries, regulators and technology partners build with Energy Web (e.g. RMI, EDF, SABA).
History
| Date | Event |
|---|---|
| 2019 | EWT launched on the Energy Web Chain (EWC). |
| 2025 | A 2025 technology and governance upgrade approved by EWC validators added an official ERC-20 EWT on Ethereum and bridging between EWC, EWX and Ethereum. |
| 3 February 2026 | Energy Web found an unauthorised change to the front-end routing of energywebx.com that may have redirected visitors. |
| 17 August 2026 | An attacker exploited a bridge-attestation flaw on Energy Web X; the withdrawal was blocked and the credited balances were reversed. |
Security and audits
- Energy Web says the EWT bridge is audited ('the audited Energy Bridge').
- Security issues are reported to security@energyweb.org and handled under an Incident Response Plan.
- Energy Web published notices on a February 2026 front-end routing incident and an August 2026 blocked bridge exploit on Energy Web X.
Security incidents
| Date | What happened | Source |
|---|---|---|
| 17 August 2026 | Bridge exploit: A signature validation flaw in the module that validates bridge attestations (inherited from the Aventus parachain code) let an attacker credit 70,080,500 EWT to their own account on Energy Web X. The queued withdrawal to Ethereum was blocked; transfers, public RPC and bridge operations were suspended as a precaution, while block production continued. The flaw was fixed. Funds returned: Energy Web says no tokens left Energy Web X, no holder lost funds, and all credited balances were reversed the same evening. | energywebx.com |
Further incidents are reported by third parties (press, incident databases) but are not confirmed in the company’s own channels, so they are not listed here.
Official EWT contracts
| Network | Contract address |
|---|---|
| Ethereum | 0xb66a5d30d04f076e78ffb0d045c55846fdcde928 |
EWT is native on Energy Web X and the Energy Web Chain. The address is the official ERC-20 EWT contract on Ethereum given in the Energy Web docs; the older bridged EWTb token is a different contract.
Risks and caveats
- Energy Web's own risk notice says EWT may lose its value in part or in full and is not covered by deposit guarantee schemes.
- EWT gives no ownership, profit or dividend rights.
- Staking delegators share slashing risk with their collator; rewards are variable.
- Bridges and keys are a stated risk; an August 2026 bridge exploit attempt on Energy Web X was blocked.
Official links
- Website: www.energyweb.org
- Website: www.energywebx.com
- Docs: docs.energyweb.org
- Source code: github.com/energywebfoundation
- Block explorer: energywebx.subscan.io
- Blog: energywebx.medium.com
- Security: www.energyweb.org/security
Questions and answers
What is Energy Web Token (EWT)?
EWT is the native token of Energy Web, used for staking, network fees and governance; it launched on the Energy Web Chain in 2019.
What is the maximum supply of EWT?
EWT has a fixed supply cap of 100 million tokens.
Which blockchain is EWT on?
EWT runs on Energy Web X, a Polkadot parachain using Nominated Proof-of-Stake, and as an official ERC-20 token on Ethereum (0xb66a5d30d04f076e78ffb0d045c55846fdcde928).
Who is behind Energy Web?
The Swiss non-profit Energy Web Foundation stewards the platform; energyweb.org is run by its subsidiary Energy Web AG in Zug.
Has Energy Web been hacked?
Energy Web reported an August 2026 bridge exploit attempt on Energy Web X that was blocked and reversed, and a February 2026 front-end routing incident on energywebx.com; it says no user funds were lost.
Sources
- Energy Web - Home
- Energy Web - Protocol
- Energy Web - Security
- Energy Web - Privacy policy (operator)
- Energy Web X - Home, FAQ and security notices
- Energy Web docs - Energy Web Chain
- Energy Web docs - Energy Web Tokens
- Energy Web docs - EWT token mobility (2025 upgrade)
- Energy Web docs - Proof-of-Authority
- Etherscan - EWT ERC-20 contract
- Energy Web - Ecosystem
- Energy Web Foundation on GitHub
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