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
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Key facts
- Ticker
- kSLR
- Official site
- 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, hacked.slowmist.io/search, rekt.news/leaderboard, solarcoin.org/frequently-asked-questions, t.me/s/SolarCoinERC20
Official kSLR contracts
| Network | Contract address |
|---|---|
| Base | 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
- Docs: solarcoin.org/frequently-asked-questions
- Blog: medium.com/solarcoin
- Source code: gitlab.com/SolarCoin
- Block explorer: 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
- SolarCoin - About
- SolarCoin - FAQ
- SolarCoin - How it works
- SolarCoin - Legal disclaimers
- SolarCoin - Trading
- SolarCoin - Wallet
- SolarCoin - Migration
- SolarCoin - Partners
- BaseScan - kSLR token
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