Can the Dencun Upgrade Lower Ethereum’s High Gas Fees?

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The Dencun upgrade went live on Ethereum’s mainnet on March 13, marking another milestone in Ethereum’s evolution. Despite its technical significance, the upgrade hasn’t captured as much public attention as previous major network upgrades—possibly due to the explosive momentum in broader crypto markets. Meanwhile, the rapid rise of ecosystems like Bitcoin and Solana has quietly placed Ethereum back under competitive pressure.

But the central question on many users’ minds remains: Can the Dencun upgrade finally bring down Ethereum’s notoriously high gas fees?

Understanding the Real Impact of the Dencun Upgrade

In recent months, Ethereum’s on-chain activity has surged, driven by strong market sentiment and increased user participation. This uptick has directly translated into rising transaction costs.

According to OKLink data, Ethereum’s average gas price has increased by nearly 236% over the past two months, with daily average transaction fees exceeding $20 over the past week**. On March 6 alone, the average fee spiked to **$31.22—the highest level since June 2022.

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With users regularly paying double-digit dollar amounts for simple transactions, many are hoping the Dencun upgrade will offer relief. However, there's a widespread misconception about what this upgrade actually achieves.

The core innovation of Dencun is EIP-4844, which introduces blobs (binary large objects) as a new form of temporary data storage. This change is designed to significantly reduce data availability costs for Layer 2 (L2) rollups, where data publishing previously accounted for over 90% of L2 transaction fees.

In short:
✅ L2 users will benefit from drastically lower fees—potentially by 10x or more.
❌ Mainnet (Layer 1) users will see little to no direct reduction in gas fees.

Currently, L2 transactions make up about 10% of Ethereum’s total daily gas consumption. Even if L2 fees drop tenfold, the impact on overall network fee levels may be marginal during periods of high demand. The idea—popularized by figures like Eric.eth—that Ethereum fees could fall to $0.01 per transaction remains optimistic at best, especially for L1 activity.

"L2 is Ethereum." – Eric.eth

While philosophically true, this doesn’t change the reality that most fee savings will be confined to L2s such as Arbitrum, Optimism, and Base.

Will L2 Fees Stay Low After Dencun?

Even within the L2 ecosystem, long-term fee reductions may not meet market expectations. Post-upgrade, we anticipate increased competition among L2 projects for blob space allocation. Coupled with a surge in L2 adoption and user activity, this could gradually push fees back up.

Though initial transaction costs on rollups may drop sharply—potentially below $0.05—the combination of rising demand and limited blob capacity (initially capped at 6 blobs per block) could lead to congestion over time.

Still, the Dencun upgrade is undoubtedly Ethereum’s most important development in 2025. It marks the official start of "The Surge" phase in Ethereum’s roadmap—centered on scaling through rollups and sharding—and is expected to accelerate innovation across the L2 landscape.

Core Keywords:

The Role of Spot ETF Hopes in Ethereum’s Outlook

Another factor influencing Ethereum’s market narrative is the potential approval of a spot Ethereum ETF. Unlike Bitcoin’s ETF race—which drew massive institutional and media attention—the path to an ETH ETF has been far less dramatic.

Bloomberg’s senior ETF analyst recently cut the odds of SEC approval by May from 60% to just 30%, citing regulatory uncertainty around Ethereum’s classification: Is it a commodity or a security?

The SEC’s past actions add complexity. In early 2023, it forced Kraken to shut down its staking service in the U.S., and later sued Coinbase over its staking program, arguing these offerings resemble unregistered securities.

Despite this, confidence in Ethereum remains strong. As of March 2025, over 40 million ETH are staked network-wide, representing a 34% staking rate—a testament to long-term belief in the network’s fundamentals.

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However, even if approved, an Ethereum spot ETF may not deliver the same market euphoria as Bitcoin’s. When Ethereum futures ETFs launched in late 2023, they attracted only a few million dollars in trading volume—a stark contrast to Bitcoin ETFs, which saw billions traded within hours of launch.

This suggests that while Wall Street will continue packaging ETH exposure for traditional investors, the retail and speculative excitement may remain muted compared to BTC.

Is Ethereum Losing Ground to Bitcoin and Solana?

While Dencun and ETF speculation dominate technical discussions, Ethereum faces growing competition from alternative ecosystems—most notably Bitcoin and Solana.

Bitcoin’s Ordinals Revolution

The introduction of the Ordinals protocol has transformed Bitcoin from a "digital gold" narrative into a platform capable of hosting rich on-chain applications. Over the past year, the BRC-20 token standard has grown into a $4 billion+ ecosystem, with some tokens seeing price increases of 40x or more.

Yet Bitcoin’s technical constraints—low throughput, slow block times, and limited smart contract functionality—prevent it from supporting complex decentralized applications at scale. Its ecosystem also remains narrowly focused on inscriptions and collectibles, lacking diversified use cases.

Rather than replicating Ethereum’s DeFi or NFT dominance, Bitcoin’s future likely lies in native innovations like Ordinals and BRC-20, building utility around its unmatched security and decentralization.

Solana: The High-Performance Challenger

Solana presents a more direct challenge. From day one, its architecture was built for speed and scalability—capable of processing thousands of transactions per second with sub-cent fees and near-instant finality.

Before Solana, no blockchain could meet traditional financial market demands for performance. Today, it powers fast-growing ecosystems in DeFi, NFTs, and consumer apps like social media and gaming.

But rather than viewing Ethereum and Solana as rivals in a zero-sum game, it's more accurate to see them as complementary:

Ethereum aims to become a decentralized world computer, while Solana positions itself as the Nasdaq of blockchains—a high-speed financial infrastructure layer.

“Solana Beach” was where the founders surfed during their time at Qualcomm—the inspiration behind the project’s name. (Source: The New York Times)

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In the long run, Solana may not replace Ethereum but instead fill critical gaps in Web3 adoption, particularly in bridging traditional finance with crypto-native applications.

FAQs: Your Questions Answered

Q: Does the Dencun upgrade reduce Ethereum mainnet gas fees?
A: No. The upgrade primarily lowers costs for Layer 2 rollups via EIP-4844 and blob transactions. Mainnet (L1) fees remain subject to network demand.

Q: How much cheaper will L2 transactions become after Dencun?
A: Estimates suggest a 10x or greater reduction in L2 fees initially, though rising usage may moderate these savings over time.

Q: What is EIP-4844?
A: EIP-4844 introduces temporary data blobs to reduce rollup data publishing costs on Ethereum—a stepping stone toward full sharding.

Q: Could an ETH spot ETF boost prices like Bitcoin’s did?
A: Unlikely in the short term. Market expectations are lower, and regulatory hurdles remain significant compared to BTC.

Q: Is Solana outcompeting Ethereum?
A: Not exactly. Solana excels in performance; Ethereum leads in decentralization and developer ecosystem. They serve different needs.

Q: Will blob space ever be sufficient for all L2s?
A: Initially limited (6 blobs/block), future upgrades will increase capacity through full sharding under "The Surge" roadmap.

Final Thoughts: Coexistence Over Competition

Ethereum isn’t losing relevance—it’s evolving. The Dencun upgrade may not slash mainnet gas fees overnight, but it lays the foundation for a scalable, L2-centric future.

Meanwhile, Bitcoin explores new cultural and digital asset frontiers through Ordinals, and Solana pushes performance boundaries for mainstream adoption.

Rather than a battle for dominance, we’re witnessing a diversification of blockchain utility—each chain carving out its niche. The real winner? The entire Web3 ecosystem, as innovation accelerates across multiple fronts.

And who knows—maybe the next breakthrough won’t come from Ethereum or Solana at all, but from a new player inspired by them both.