{"id":39810,"date":"2021-05-16T12:10:48","date_gmt":"2021-05-16T10:10:48","guid":{"rendered":"https:\/\/www.coinpro.ch\/uncategorized\/keyword-energy-consumption-bitcoin-and-ethereum-compared\/"},"modified":"2026-05-31T00:10:17","modified_gmt":"2026-05-30T22:10:17","slug":"keyword-energy-consumption-bitcoin-and-ethereum-compared","status":"publish","type":"post","link":"https:\/\/www.coinpro.ch\/en\/bitcoin-en\/keyword-energy-consumption-bitcoin-and-ethereum-compared\/","title":{"rendered":"Bitcoin energy consumption 2026: electricity use, CO\u2082 &#038; criticism"},"content":{"rendered":"<p>Bitcoin has been criticized for years because of its high electricity consumption. But the debate is often oversimplified, because electricity consumption, CO2 emissions, the power mix, mining locations, and network security are different issues that need to be considered separately. This article answers the most important ones: How much electricity does Bitcoin use? Why does the network need so much energy in the first place? And how does Bitcoin compare with Ethereum, banks, and gold?<\/p>\n<h2>How high is Bitcoin\u2019s energy consumption right now?<\/h2>\n<p>The <a href=\"https:\/\/ccaf.io\/cbnsi\/cbeci\">Cambridge Bitcoin Electricity Consumption Index (CBECI)<\/a> estimates the Bitcoin network\u2019s annual electricity consumption at around 150\u2013175 TWh. The index is updated every 30 seconds and is considered the most reliable publicly available source for this estimate. Exact figures can\u2019t be measured because the network is decentralized and there are no complete datasets.<\/p>\n<h3>Why do the figures vary depending on the source?<\/h3>\n<p>Different models arrive at different values because they make different underlying assumptions. Hashrate, mining hardware, electricity prices, the Bitcoin price, and <a href=\"https:\/\/www.coinpro.ch\/en\/glossary\/bitcoin-mining-difficulty\/\">Bitcoin mining difficulty<\/a> significantly influence the estimates. <a href=\"https:\/\/digiconomist.net\/bitcoin-energy-consumption\">Digiconomist<\/a>, for example, which derives its figure from miner revenues, regularly reports higher numbers than the CCAF, which assumes efficient hardware utilization. What matters is the difference between electricity consumption, energy consumption, and carbon footprint: these are three related, but not identical, metrics.<\/p>\n<h3>Bitcoin electricity consumption compared to countries<\/h3>\n<p>To put the scale into perspective, a direct country comparison helps. According to CBECI, Bitcoin currently uses around 150\u2013175 TWh per year. That\u2019s roughly equivalent to the annual consumption of Poland or Ukraine, and well above that of Switzerland or Austria.<\/p>\n<table>\n<tbody>\n<tr>\n<th>Country \/ network<\/th>\n<th>Annual consumption (approx. TWh)<\/th>\n<th>Population<\/th>\n<\/tr>\n<tr>\n<td><strong>Bitcoin network<\/strong><\/td>\n<td><strong>150\u2013175<\/strong><\/td>\n<td>not a country, global infrastructure<\/td>\n<\/tr>\n<tr>\n<td>Poland<\/td>\n<td>~165<\/td>\n<td>38 million<\/td>\n<\/tr>\n<tr>\n<td>Ukraine<\/td>\n<td>~155<\/td>\n<td>44 million<\/td>\n<\/tr>\n<tr>\n<td>Netherlands<\/td>\n<td>~120<\/td>\n<td>18 million<\/td>\n<\/tr>\n<tr>\n<td>Switzerland<\/td>\n<td>~60<\/td>\n<td>9 million<\/td>\n<\/tr>\n<tr>\n<td>Austria<\/td>\n<td>~70<\/td>\n<td>9 million<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Such comparisons show the order of magnitude, but should be interpreted with caution. A country\u2019s electricity consumption includes industry, households, transport, and infrastructure. Bitcoin is a single network. The comparison doesn\u2019t automatically answer the question of benefit or harm.<\/p>\n<script type=\"text\/plain\" data-tcf=\"waiting-for-consent\" data-id=\"20572\" data-bid=\"1\" data-placement=\"33872\">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<\/script><h2>Why does Bitcoin use so much energy in the first place?<\/h2>\n<p>The high energy consumption isn\u2019t a design flaw, but a deliberate element of the security model. Bitcoin uses the so-called proof-of-work mechanism, where miners compete with each other to find new blocks in the <a href=\"https:\/\/www.coinpro.ch\/en\/knowledge\/what-is-a-blockchain-basics-and-functionality\/\">blockchain<\/a>. To do this, they use specialized hardware that delivers enormous computing power. The energy used makes it prohibitively expensive for attackers to manipulate the network.<\/p>\n<h3>Mining, hashrate, and difficulty<\/h3>\n<p>Hashrate describes the total computing power of all machines involved in <a href=\"https:\/\/www.coinpro.ch\/en\/bitcoin-en\/bitcoin-explained-how-are-bitcoins-created\/\">Bitcoin mining<\/a>. Difficulty is an automatic adjustment mechanism: if the hashrate rises, it becomes harder to find new blocks. Efficiency gains from better hardware therefore don\u2019t automatically lead to lower overall consumption. If mining becomes more profitable, more miners can join and cancel out the advantage. This rebound effect is key to understanding Bitcoin\u2019s energy consumption.<\/p>\n<h3>Energy consumption per transaction: why this metric is problematic<\/h3>\n<p>In public debate, energy consumption per transaction is often cited. But Bitcoin uses energy to secure the entire network, not directly for a single transaction. Simply dividing annual consumption by the number of transactions is therefore methodologically difficult. Alex de Vries, an economics expert and operator of the <a href=\"https:\/\/digiconomist.net\/bitcoin-energy-consumption\">Digiconomist blog<\/a>, concludes in the Bitcoin Energy Consumption Index that each Bitcoin transaction, taken on its own, consumes the same amount of energy as 17 households use in a day. Such figures show the scale, but need to be read in the context of the network security model.<\/p>\n<h2>How large is Bitcoin\u2019s carbon footprint?<\/h2>\n<p>The same electricity consumption can cause very different emissions depending on the power mix. <a href=\"https:\/\/www.coinpro.ch\/en\/knowledge\/what-are-cryptocurrencies-explanation-for-beginners\/\">Cryptocurrencies<\/a> are typically mined in data centers that rely on energy from fossil sources. Mining with coal is far more problematic for climate policy than mining with hydropower, wind, or solar. So what matters for the CO2 balance isn\u2019t just the amount of energy consumed, but also where the electricity comes from. As University of Nottingham researcher Katrina Kelly emphasizes, the discussion is often conducted at an overly simplified level because this distinction receives too little attention.<\/p>\n<h3>Which energy sources do Bitcoin miners use?<\/h3>\n<p>According to the Cambridge Digital Mining Industry Report 2025, 52.4% of the energy used for Bitcoin mining comes from sustainable sources, including renewables and nuclear power. For comparison: in 2022, this share was still 37.6%. Coal still accounts for around 9% of the mining power mix today, natural gas around 38%. That means: over 45% of the electricity still comes from fossil sources. Blanket statements like \u00abBitcoin mining is green\u00bb or \u00abBitcoin mining is only dirty\u00bb are both wrong.<\/p>\n<h3>Why miners\u2019 locations are crucial<\/h3>\n<p>Mining in particular causes enormous electricity consumption due to the high technical effort involved. The location of miners and mining farms matters: after China cracked down on Bitcoin mining, the mining landscape shifted significantly. The US, Canada, and other regions have become more important. In countries like Norway or Canada, miners increasingly rely on hydropower. Norway generates around 95% of its electricity from hydropower and 4% from wind power. Electricity consumption for mining is further reduced there through cooling with fjord water. In China, by contrast, historically between 70% and 80% of electricity was generated from fossil fuels such as oil, gas, and coal.<\/p>\n<h2>Bitcoin and Ethereum electricity consumption compared<\/h2>\n<p>Earlier comparisons between Bitcoin and <a href=\"https:\/\/www.coinpro.ch\/en\/tag\/ethereum-en\/\">Ethereum<\/a> were based on both networks using proof of work. That has fundamentally changed. With the <a href=\"https:\/\/www.coinpro.ch\/en\/ethereum-en\/ethereum-merge-what-is-it-everything-you-need-to-know\/\">Ethereum Merge<\/a>, ETH switched to proof of stake. Mining has no longer been necessary for Ethereum since then, and energy consumption has been massively reduced. Today, Ethereum is an example of how strongly a network\u2019s consensus mechanism influences its energy consumption.<\/p>\n<table>\n<tbody>\n<tr>\n<th>Category<\/th>\n<th>Bitcoin<\/th>\n<th>Ethereum<\/th>\n<\/tr>\n<tr>\n<td>Consensus mechanism<\/td>\n<td>Proof of Work<\/td>\n<td>Proof of Stake<\/td>\n<\/tr>\n<tr>\n<td>Mining required?<\/td>\n<td>Yes<\/td>\n<td>No<\/td>\n<\/tr>\n<tr>\n<td>Energy consumption<\/td>\n<td>High<\/td>\n<td>Very low compared to before<\/td>\n<\/tr>\n<tr>\n<td>Main driver of consumption<\/td>\n<td>Mining and network security<\/td>\n<td>Validators and nodes<\/td>\n<\/tr>\n<tr>\n<td>CO2 debate<\/td>\n<td>Very pronounced<\/td>\n<td>Significantly lower since the Merge<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>BTC uses dramatically more energy to mine new coins than is used to create new Ether. Old figures from 2021 and 2022 that made a direct comparison between the two networks should not be carried over unchanged.<\/p>\n<h2>Bitcoin compared to banks, gold, and AI<\/h2>\n<p>Bitcoin\u2019s energy consumption is often discussed in isolation. It\u2019s more useful to look at other energy-intensive systems that perform similar functions or serve as benchmarks. The following table shows current estimates:<\/p>\n<table>\n<tbody>\n<tr>\n<th>System<\/th>\n<th>Annual consumption (approx. TWh)<\/th>\n<th>Source \/ basis<\/th>\n<\/tr>\n<tr>\n<td>Bitcoin network<\/td>\n<td>150\u2013175<\/td>\n<td>CBECI, 2025<\/td>\n<\/tr>\n<tr>\n<td>Global banking system<\/td>\n<td>~260<\/td>\n<td>Galaxy Digital (data centers, branches, ATMs, card networks)<\/td>\n<\/tr>\n<tr>\n<td>Gold mining (global)<\/td>\n<td>~240<\/td>\n<td>World Gold Council \/ various estimates<\/td>\n<\/tr>\n<tr>\n<td>Global data centers (incl. AI)<\/td>\n<td>~415<\/td>\n<td>IEA, 2024<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Some caveats on these figures: Galaxy Digital\u2019s banking-system estimate is from 2021 and is methodologically difficult to verify because banks don\u2019t report their electricity consumption in a standardized way. Gold-mining figures vary significantly by source because transport, processing, and storage are counted differently. The IEA figure for data centers includes all workloads, not just AI.<\/p>\n<p>What the table still shows: Bitcoin isn\u2019t the only energy-intensive system on this scale. The banking system and gold mining are higher, and global data centers are significantly higher still. That doesn\u2019t automatically make Bitcoin sustainable. But it does show the debate is selective when only Bitcoin is in focus.<\/p>\n<h2>Can Bitcoin mining become more sustainable?<\/h2>\n<p>Miners look for cheap electricity. Since renewables have become among the cheapest power sources in many regions, the economic incentive for green mining is real. According to Cambridge data, the share of sustainable energy sources in mining increased from 37.6% to 52.4% between 2022 and 2025.<\/p>\n<p>Bitcoin mining has a feature that is rarely mentioned in the energy debate: miners can shut down their machines within seconds. That makes them a flexible load that is actually used in some power grids. In Texas, for example, large mining operations work contractually with grid operator ERCOT and immediately power down during demand peaks. The use of methane that would otherwise be flared at landfills or oil fields is also being tested in practice: Crusoe Energy already operates over 100 such facilities in the US.<\/p>\n<p>The share of sustainable energy is rising, but the network\u2019s absolute electricity consumption is rising as well. Whether the overall CO2 balance improves depends on which of the two curves grows faster.<\/p>\n<h2>Environmentally friendly cryptocurrencies as an alternative<\/h2>\n<p>More and more blockchain and crypto projects are switching from the proof-of-work consensus model to a more energy-efficient proof-of-stake consensus model. Proof of stake doesn\u2019t require energy-intensive mining competition. Energy consumption depends more on validators and infrastructure. Many projects have chosen this direction from the very start.<\/p>\n<p><a href=\"https:\/\/www.coinpro.ch\/en\/knowledge\/what-is-cardano-and-how-does-it-work\/\">Cardano<\/a>, for example, is based on proof of stake and is considered one of the networks with a comparatively low energy footprint. <a href=\"https:\/\/www.coinpro.ch\/en\/knowledge\/what-is-solana-basics-of-the-sol-cryptocurrency\/\">Solana<\/a> and <a href=\"https:\/\/www.coinpro.ch\/en\/knowledge\/what-is-algorand-algo-explained-simply-and-clearly\/\">Algorand<\/a> take similar approaches. IOTA uses an alternative form of the technology called \u00abTangle\u00bb that works without huge data centers and without miners: every device that wants to carry out a transaction must confirm at least two other transactions. The more transactions are carried out, the more efficient the network becomes. <a href=\"https:\/\/www.coinpro.ch\/en\/knowledge\/cryptocurrencies-explained-what-is-staking\/\">Staking<\/a>-based networks are often more efficient than Bitcoin, but come with their own trade-offs in decentralization and security.<\/p>\n<p>Many older lists of environmentally friendly cryptocurrencies are outdated. Some projects that were once prominently mentioned are hardly active anymore. Sustainability should therefore be assessed together with decentralization, security, usage, and real activity\u2014not just marketing promises.<\/p>\n<h2>Conclusion: What you should know about Bitcoin\u2019s energy and electricity consumption<\/h2>\n<p>Bitcoin undoubtedly has high energy consumption. The criticism is justified when mining is powered by fossil energy. But the debate needs to be more nuanced: electricity consumption, CO2 emissions, the power mix, network security, and utility are different questions with different answers.<\/p>\n<p>When it comes to energy demand, don\u2019t forget that most available figures are estimates, because the system\u2019s decentralized nature doesn\u2019t allow for complete data collection. Ethereum shows that more energy-efficient blockchain models are possible. Because of its proof-of-work approach, Bitcoin will likely remain energy-intensive. So far, a complete trend reversal is still a long way off. What will be decisive for future assessments is how transparent the mining industry becomes and how extensively sustainable energy sources are actually used.<\/p>\n<section id='' \n                class='helpie-faq accordions faq-toggle open-first' \n                data-collection='' \n                data-pagination='0' \n                data-search='0' \n                data-pagination-enabled='0'\n                role='region'\n                aria-label='FAQ Section'\n                aria-live='polite'><h2 class=\"collection-title\">Frequently asked questions about Bitcoin\u2019s electricity consumption<\/h2><article class=\"accordion \"><div class='helpie-faq-row'><div class='helpie-faq-col helpie-faq-col-12' ><ul><li class=\"accordion__item \"><div class=\"accordion__header \" \r\n                id=\"accordion-header-post-43320\"\r\n                role=\"button\"\r\n                aria-expanded=\"false\"\r\n                aria-controls=\"accordion-content-post-43320\"\r\n                data-id=\"post-43320\" \r\n                data-item=\"hfaq-post-43320\" data-slug=\"is-bitcoin-bad-for-the-environment\" \r\n                style=\"background:transparent;\" \r\n                data-tags=\"\"\r\n                tabindex=\"0\"><div class=\"accordion__title\">Is Bitcoin bad for the environment?<\/div><\/div><div id=\"accordion-content-post-43320\" \r\n                class=\"accordion__body\" \r\n                role=\"region\"\r\n                aria-labelledby=\"accordion-header-post-43320\"\r\n                style=\"background:transparent;\"><p>The debate can\u2019t be answered with a simple yes or no. It largely depends on the electricity mix. Mining with coal is significantly more harmful than mining with hydropower or solar. Criticism is justified when fossil fuels are used. Blanket statements in either direction oversimplify the situation.<\/p>\n<\/div><\/li><li class=\"accordion__item \"><div class=\"accordion__header \" \r\n                id=\"accordion-header-post-43317\"\r\n                role=\"button\"\r\n                aria-expanded=\"false\"\r\n                aria-controls=\"accordion-content-post-43317\"\r\n                data-id=\"post-43317\" \r\n                data-item=\"hfaq-post-43317\" data-slug=\"why-does-bitcoin-consume-so-much-energy\" \r\n                style=\"background:transparent;\" \r\n                data-tags=\"\"\r\n                tabindex=\"0\"><div class=\"accordion__title\">Why does Bitcoin consume so much energy?<\/div><\/div><div id=\"accordion-content-post-43317\" \r\n                class=\"accordion__body\" \r\n                role=\"region\"\r\n                aria-labelledby=\"accordion-header-post-43317\"\r\n                style=\"background:transparent;\"><p>Bitcoin uses Proof of Work as its consensus mechanism. Miners use specialized hardware to find new blocks and secure the network. The energy consumed is part of the security model and makes attacks on the network prohibitively expensive.<\/p>\n<\/div><\/li><li class=\"accordion__item \"><div class=\"accordion__header \" \r\n                id=\"accordion-header-post-43315\"\r\n                role=\"button\"\r\n                aria-expanded=\"false\"\r\n                aria-controls=\"accordion-content-post-43315\"\r\n                data-id=\"post-43315\" \r\n                data-item=\"hfaq-post-43315\" data-slug=\"how-much-electricity-does-bitcoin-consume-per-year\" \r\n                style=\"background:transparent;\" \r\n                data-tags=\"\"\r\n                tabindex=\"0\"><div class=\"accordion__title\">How much electricity does Bitcoin consume per year?<\/div><\/div><div id=\"accordion-content-post-43315\" \r\n                class=\"accordion__body\" \r\n                role=\"region\"\r\n                aria-labelledby=\"accordion-header-post-43315\"\r\n                style=\"background:transparent;\"><p>According to estimates by the Cambridge Centre for Alternative Finance, the annual electricity consumption is comparable to that of a small to medium-sized industrial country. Exact values are not fully measurable due to the decentralized structure of the network. The magnitude is undeniably high, and the exact figure varies depending on the model used.<\/p>\n<\/div><\/li><li class=\"accordion__item \"><div class=\"accordion__header \" \r\n                id=\"accordion-header-post-43316\"\r\n                role=\"button\"\r\n                aria-expanded=\"false\"\r\n                aria-controls=\"accordion-content-post-43316\"\r\n                data-id=\"post-43316\" \r\n                data-item=\"hfaq-post-43316\" data-slug=\"can-bitcoin-switch-to-proof-of-stake-to-save-energy\" \r\n                style=\"background:transparent;\" \r\n                data-tags=\"\"\r\n                tabindex=\"0\"><div class=\"accordion__title\">Can Bitcoin switch to Proof of Stake to save energy?<\/div><\/div><div id=\"accordion-content-post-43316\" \r\n                class=\"accordion__body\" \r\n                role=\"region\"\r\n                aria-labelledby=\"accordion-header-post-43316\"\r\n                style=\"background:transparent;\"><p>Technically, it is possible. Culturally, it is extremely unlikely for the foreseeable future. In the Bitcoin community, Proof of Work is considered a core part of the security and decentralization model.<\/p>\n<\/div><\/li><\/ul><\/div><\/div><\/article><\/section>\n","protected":false},"excerpt":{"rendered":"<p>Bitcoin has been criticized for years because of its high electricity consumption. But the debate is often oversimplified, because electricity consumption, CO2 emissions, the power mix, mining locations, and network security are different issues that need to be considered separately. This article answers the most important ones: How much electricity does Bitcoin use? Why does&#8230;<\/p>\n","protected":false},"author":14,"featured_media":35655,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[17315],"tags":[17387,17501,17807,17941],"class_list":["post-39810","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bitcoin-en","tag-bitcoin-en","tag-ethereum-en","tag-knowledge","tag-staking"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.9 (Yoast SEO v27.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Bitcoin energy consumption 2026: electricity use, CO\u2082 &amp; criticism<\/title>\n<meta name=\"description\" content=\"How high is Bitcoin&rsquo;s energy consumption really? 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