[Crypto projects](https://revain.org/projects/) › SolarCoin

# SolarCoin (kSLR): how it works, supply and reviews

## In short

- **Runs on**: kSLR is a token on Base (chain ID 8453); legacy SLR stays on Energy Web Chain (chain ID 246).
- **Issuance**: 1 kSLR is issued for each kilowatt-hour of verified solar production.
- **Risks and caveats**: SolarCoin's legal page says it makes no claim that SolarCoin or kSLR is licensed or authorised in any jurisdiction.
- **Checked**: 1 November 2026

## Key facts

- **Ticker**: kSLR
- **Official site**: [solarcoin.org](https://solarcoin.org/)

Key facts checked on 1 November 2026 against official sources.

## What is SolarCoin

SolarCoin is a reward token that the SolarCoin Foundation gives to owners of solar installations for the electricity they produce: 1 kSLR per kilowatt-hour. Since May 2026 rewards are issued as kSLR on the Base network.

## Network and consensus

| Parameter | Details |
|---|---|
| Runs on | kSLR is a token on Base (chain ID 8453); legacy SLR stays on Energy Web Chain (chain ID 246). |
| Type | Token contract on Base; the explorer lists it as an ERC-20 token. |
| Migration | On 15 May 2026 SLR balances on Energy Web Chain and Ethereum were snapshotted into a Merkle tree for the kSLR claim. |
| Claim window | SLR holders have until 15 May 2027 to claim kSLR. |

## Supply and issuance

| Parameter | Details |
|---|---|
| Issuance | 1 kSLR is issued for each kilowatt-hour of verified solar production. |
| Redenomination | 1 SLR converts to 1,000 kSLR. |
| Minting | New kSLR is minted only when verified solar production is submitted. |
| Initial distribution | Rewards come from a predetermined supply allocated to solar production; participation is free. |

## What kSLR is used for

- Solar producers receive kSLR as a reward for each kilowatt-hour their panels generate.
- New registrations can claim up to 5 years of past production.
- Holders can keep, trade or spend kSLR; a kSLR/ETH pair is live on Uniswap V4 on Base.

## Who develops and governs SolarCoin

- **Foundation**: The SolarCoin Foundation, described in the FAQ as a nonprofit, runs the programme.
- **Token supply**: The SolarCoin Foundation mints kSLR and funds the token supply for partner programmes.
- **Team**: The Foundation says it is run by volunteers.
- **Company**: The trading page names 'kSLR pte' alongside the SolarCoin Foundation and says it does not make markets.
- **Eligibility**: People and entities in OFAC-sanctioned countries and jurisdictions restricted under Singapore law are not eligible.

## History

| Date | Event |
|---|---|
| December 2013 | The SolarCoin rewards programme starts. |
| 15 May 2026 | A snapshot of SLR balances on Energy Web Chain and Ethereum is taken for the move to kSLR on Base. |
| 15 May 2027 | Deadline for SLR holders to claim kSLR (scheduled). |

## Security and audits

- SolarCoin says it never asks for passwords or seed phrases and that claim.solarcoin.org is the only official claim portal.
- SolarCoin says it cannot recover lost wallets, keys or tokens sent to a lost wallet.

## Security incidents

No security incident is recorded in the sources checked on 1 November 2026 (the company’s own channels and incident databases): [defillama.com/hacks](https://defillama.com/hacks), [hacked.slowmist.io/search](https://hacked.slowmist.io/search/), [rekt.news/leaderboard](https://rekt.news/leaderboard/), [solarcoin.org/frequently-asked-questions](https://solarcoin.org/frequently-asked-questions/), [t.me/s/SolarCoinERC20](https://t.me/s/SolarCoinERC20)

## Official kSLR contracts

| Network | Contract address |
|---|---|
| Base | [0x7Aa7CB583084DeFc43cc0c2e95213ce364a8df9C](https://basescan.org/token/0x7Aa7CB583084DeFc43cc0c2e95213ce364a8df9C) |

kSLR on Base is the current token. Legacy SLR remains on Energy Web Chain, where the Foundation no longer issues it.

## Risks and caveats

- SolarCoin's legal page says it makes no claim that SolarCoin or kSLR is licensed or authorised in any jurisdiction.
- SolarCoin's legal page gives no guarantee about the future value or legal status of SolarCoin or kSLR.
- Legacy SLR no longer receives new rewards or active development support.

## Official links

- Website: [solarcoin.org](https://solarcoin.org/)
- Docs: [solarcoin.org/frequently-asked-questions](https://solarcoin.org/frequently-asked-questions/)
- Blog: [medium.com/solarcoin](https://medium.com/solarcoin)
- Source code: [gitlab.com/SolarCoin](https://gitlab.com/SolarCoin)
- Block explorer: [basescan.org/token/0x7Aa7CB583084DeFc43cc0c2e95213ce364a8df9C](https://basescan.org/token/0x7Aa7CB583084DeFc43cc0c2e95213ce364a8df9C)

## Questions and answers

**What is SolarCoin?**

A reward token from the SolarCoin Foundation that gives solar panel owners 1 kSLR per kilowatt-hour they produce, issued on the Base network.

**What happened to SLR?**

SLR balances were snapshotted on 15 May 2026; holders can claim 1,000 kSLR per SLR on Base until 15 May 2027.

**Is it free to join SolarCoin?**

SolarCoin says joining and claiming are free; only a small Base network fee applies when trading.

**What is the kSLR contract address?**

0x7Aa7CB583084DeFc43cc0c2e95213ce364a8df9C on Base (chain ID 8453).

## Sources

- [SolarCoin - Official website](https://solarcoin.org/)
- [SolarCoin - About](https://solarcoin.org/about/)
- [SolarCoin - FAQ](https://solarcoin.org/frequently-asked-questions/)
- [SolarCoin - How it works](https://solarcoin.org/how-it-works/)
- [SolarCoin - Legal disclaimers](https://solarcoin.org/legal/)
- [SolarCoin - Trading](https://solarcoin.org/trading/)
- [SolarCoin - Wallet](https://solarcoin.org/wallet/)
- [SolarCoin - Migration](https://solarcoin.org/start-migration/)
- [SolarCoin - Partners](https://solarcoin.org/partners/)
- [BaseScan - kSLR token](https://basescan.org/token/0x7Aa7CB583084DeFc43cc0c2e95213ce364a8df9C)

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Page updated: 2026-11-01

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Source: https://revain.org/projects/solarcoin/