Polkadot (DOT) Has the Lowest Carbon Footprint Among Major Cryptocurrencies, Corresponding to Just 5 Business Class Airplane Roundtrips Between Munich and San Francisco
Polkadot (DOT) Has the Lowest Carbon Footprint Among Major Cryptocurrencies, Corresponding to Just 5 Business Class Airplane Roundtrips Between Munich and San Francisco
May 28, 2024 3:25 AM

This is not investment advice. The author has no position in any of the stocks mentioned. Wccftech.com has a disclosure and ethics policy.

Polkadot (DOT), a decentralized protocol that allows unrelated blockchains to interact with each other in a secure manner, is currently the greenest major cryptocurrency on the market, as per a tabulation by Crypto Carbon Ratings Institute.

Before delving into this subject, let’s take a look at Polkadot’s unique architecture.

Polkadot Aims to be “the Blockchain of Blockchains”

Polkadot’s architecture consists of two main elements: the relay chain and parachains/parathreads. The relay chain is the bedrock of the network. Here, Polkadot validators stake the native DOT coin in order to secure the chance to authenticate three main transaction types: interaction with governance mechanisms, parachain auctions, and Nominated Proof of Stake (NPoS).

As a refresher, parachains are sovereign blockchains that have their own tokens and functionality. Parachains are able to connect to Polkadot’s relay chain by leasing a slot for up to 96 weeks at a time, with the option to renew the lease before the slot expires. These slots are assigned via an on-chain auction, with auction winners locking up a bond in the DOT coin for the duration of the lease. On the other hand, parathreads are shared slots that are cheaper and ideal for processes (blockchains) that do not require constant connectivity.

Most of the computation on Polkadot’s network occurs within parachains/parathreads. Collator nodes collect parachain transactions and produce state transition proofs for the validators on the relay chain. These proofs are then authenticated by dedicated validators assigned to specific parachains or parathreads via the NPoS method – nominators attach their DOT stake to particular validators in order to help them enter the active validator set, thereby winning a portion of the staking reward in return. For their part, validators produce blocks on the relay chain to win staking rewards.

Finally, the DOT coin serves two purposes on the Polkadot network: it drives the staking mechanism and acts as a governance token by allowing its holders to vote on the future of the protocol. At $22.078 billion, DOT currently has the tenth largest market capitalization among all cryptocurrencies. As per the tabulation by CoinMarketCap, there are over 987 million DOT coins in circulation.

With the primer on Polkadot’s architecture out of the way, let’s discuss the protocol’s energy consumption and carbon footprint.

The DOT Coin’s Network has a Carbon Footprint That is Roughly Equal to Five Business Class Airplane Roundtrips Between Munich and San Francisco

As per the latest report by Crypto Carbon Ratings Institute (CCRI), each Polkadot node consumes 0.796 kWh of electricity. For comparison, 1 Solana node consumes 1.91 kWh of electricity, while each Cardano node consumes just 0.066 kWh of electricity, on average. Clearly, Cardano has the lead here while Polkadot comes out at the second-to-last position behind only Solana’s astronomical node inefficiency.

Source: Crypto Carbon Ratings Institute (CCRI)

However, as far as the total energy consumption of the network is concerned, Polkadot leads in efficiency with an electricity consumption that equates to just around 6.62x the average electricity consumed by a typical household in the United States (10,600 kWh per year).

Source: Crypto Carbon Ratings Institute (CCRI)

When measured on a per transaction basis, Solana gains a lead on the back of its astronomical transaction processing ability. For reference, Polkadot can process 166.66 transactions per second (tps). On the other hand, Solana has a theoretical transaction throughput of 65,000 tps. But, it is currently processing around 1,954 transactions per second. Solana had processed 45 billion transactions in December 2021 alone!

Source: Crypto Carbon Ratings Institute (CCRI)

Finally, Polkadot takes the lead again when it comes to the carbon footprint produced by major cryptocurrencies. Polkadot’s carbon emissions equate to around 5 business class airplane roundtrips between Munich and San Francisco. For Cardano, this metric equates to over 284 such trips, while Solana comes out last among its fellow Proof-of-Stake (PoS) cryptocurrencies with a carbon footprint that equates to over 934 such trips.

Source: Crypto Carbon Ratings Institute (CCRI)

The soaring energy use of the entire crypto sphere has become a bone of contention for the technology’s detractors. Continued investor focus on this metric will incentivize crypto stakeholders to reduce the carbon footprints of their associated networks, leading to a much greener future.

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