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Since launching in 2020, Solana has grown into one of the most active blockchain ecosystems by developer count, daily transaction volume, and total value locked in DeFi.
Most blockchains force you to pick between speed, cost, and decentralization. Bitcoin is secure and decentralized but caps out at about seven transactions per second. Ethereum added programmability with smart contracts but still hits congestion and gas fee spikes that make simple token swaps cost more than the tokens themselves. Solana was engineered from scratch to deliver high throughput natively, without depending on Layer 2 rollups or sharding to get the job done.
The technical foundation is a mechanism called Proof of History (PoH). PoH generates a cryptographic timestamp for every transaction before it enters consensus, which lets validators agree on ordering without waiting through sequential communication rounds. That single design choice is the main reason Solana can produce blocks roughly every 400 milliseconds. Pair that
with Sealevel, a parallel transaction execution engine that processes non-overlapping transactions simultaneously, and you get the kind of throughput most other chains cannot match.
How the network operates
Solana runs on proof-of-stake consensus. Validators secure the network by locking up SOL (the native token) as collateral rather than burning electricity on mining hardware. Block production rotates among validators based on how much SOL is staked with them, and honest participation earns rewards. As of early 2026, the network has roughly 1,000 voting validators spread across the globe, with additional non-voting RPC nodes serving data to applications.
Fees on Solana average a fraction of a cent. You pay in SOL, and the cost stays low because the network’s architecture absorbs high transaction volumes without the auction-style fee markets that push Ethereum gas prices into double digits. That cost structure makes Solana viable for use cases that would bleed money on pricier chains: micropayments, high-frequency DeFi, on-chain order books, and real-time gaming.
Not all validators look the same under the hood, though. Some run on cloud infrastructure through AWS or Google Cloud, while others operate dedicated bare metal servers in physical data centers. That distinction matters more than most people realize, because it affects performance, uptime, and the network’s resilience when a single cloud provider goes down. Solmate runs bare metal validators because physical infrastructure delivers lower latency, better reliability, and zero dependence on any one cloud provider.
What SOL does
SOL is the native token. It pays transaction fees, secures the network through staking, and participates in on-chain governance. If you hold SOL, you can delegate it to a validator and earn staking rewards, which come from a mix of newly minted SOL (inflation) and transaction fees. Annual staking yield fluctuates with the total amount staked and network activity, but it generally lands around 6%.
SOL also functions as the base currency across Solana’s DeFi ecosystem. Lending protocols, decentralized exchanges, and liquid staking platforms all denominate positions in it, and the token’s price reflects both how quickly the network is being adopted and where the broader crypto market is headed.
Frequently asked questions
How fast is Solana?
Blocks come roughly every 400 milliseconds, and the network handles several thousand
transactions per second under normal conditions. Theoretical throughput is higher, and upgrades like Firedancer are designed to close the gap between theory and practice.
How much does a Solana transaction cost?
Usually less than a cent. Fees are paid in SOL and stay low because the architecture avoids the congestion-driven fee auctions you see on Ethereum.
Is Solana decentralized?
Roughly 1,000 voting validators run by independent operators around the world, plus additional RPC nodes. The Nakamoto Coefficient, which measures how many validators would need to collude to compromise the network, sits around 20. That puts Solana in the same range as most major proof-of-stake chains.
What is the difference between Solana and Ethereum?
Both support smart contracts, but they make different tradeoffs. Ethereum leans on its Layer 2 scaling roadmap and has the larger DeFi ecosystem by total value locked. Solana prioritizes base-layer speed and sub-cent fees, which makes it better suited for high-frequency applications like on-chain order books, payments, and real-time data feeds.
What is SOL used for?
Paying transaction fees, staking to secure the network, and serving as the base asset across Solana’s DeFi protocols.