{"id":2153,"date":"2026-01-29T23:36:52","date_gmt":"2026-01-29T21:36:52","guid":{"rendered":"https:\/\/nature-o.net\/?page_id=2153"},"modified":"2026-02-02T17:18:34","modified_gmt":"2026-02-02T15:18:34","slug":"%d0%bf%d0%be%d1%82%d1%80%d0%b5%d0%b1%d0%bb%d0%b5%d0%bd%d0%b8%d0%b5-%d1%8d%d0%bd%d0%b5%d1%80%d0%b3%d0%b8%d0%b8-%d0%b8-%d0%b2%d1%8b%d0%b1%d1%80%d0%be%d1%81%d1%8b-%d1%81%d0%be2","status":"publish","type":"page","link":"https:\/\/nature-o.net\/?page_id=2153","title":{"rendered":"Home Energy &amp; CO\u2082 Calculator"},"content":{"rendered":"\n<div class=\"eco-tool wp-block-group\" id=\"eco-tool-energy-c91e8\">\n  <div class=\"eco-tool__header\">\n    <h2 class=\"eco-tool__title\">Home Energy &#038; CO\u2082 Calculator<\/h2>\n    <p class=\"eco-tool__lead\">\n      Estimate electricity-related CO\u2082 emissions from your monthly usage. This is an approximate estimate; real emissions depend on your local grid mix.\n    <\/p>\n  <\/div>\n\n  <form class=\"eco-tool__form\" id=\"eco-energy-form-c91e8\" novalidate>\n    <div class=\"eco-tool__grid3\">\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-en-people-c91e8\">People in<br>household<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-en-people-c91e8\" type=\"number\" min=\"1\" step=\"1\" value=\"1\" inputmode=\"numeric\" \/>\n        <div class=\"eco-tool__hint\">Used for per-person estimates.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-en-kwh-c91e8\">Electricity use<br>(kWh per month)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-en-kwh-c91e8\" type=\"number\" min=\"0\" step=\"1\" value=\"300\" inputmode=\"numeric\" \/>\n        <div class=\"eco-tool__hint\">Check your utility bill for kWh.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-en-factor-c91e8\">Grid emission factor<br>(kg CO\u2082 per kWh)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-en-factor-c91e8\" type=\"number\" min=\"0\" step=\"0.01\" value=\"0.40\" inputmode=\"decimal\" \/>\n        <div class=\"eco-tool__hint\">Default is a rough global-ish average.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-en-price-c91e8\">Electricity price<br>(per kWh)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-en-price-c91e8\" type=\"number\" min=\"0\" step=\"0.01\" value=\"0.20\" inputmode=\"decimal\" \/>\n        <div class=\"eco-tool__hint\">Optional: for cost estimate.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-en-currency-c91e8\">Currency<br>(for display)<\/label>\n        <select class=\"eco-tool__input\" id=\"eco-en-currency-c91e8\">\n          <option value=\"$\">$ (USD)<\/option>\n          <option value=\"\u20ac\">\u20ac (EUR)<\/option>\n          <option value=\"\u00a3\">\u00a3 (GBP)<\/option>\n          <option value=\"\u20bd\">\u20bd (RUB)<\/option>\n          <option value=\"\u20b4\">\u20b4 (UAH)<\/option>\n          <option value=\"\u20b8\">\u20b8 (KZT)<\/option>\n          <option value=\"\u00a5\">\u00a5 (JPY)<\/option>\n        <\/select>\n        <div class=\"eco-tool__hint\">Only affects formatting.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\">Quick presets<\/label>\n        <div class=\"eco-tool__presets\">\n          <button type=\"button\" class=\"eco-tool__chip\" data-factor=\"0.20\">Low<\/button>\n          <button type=\"button\" class=\"eco-tool__chip\" data-factor=\"0.40\">Medium<\/button>\n          <button type=\"button\" class=\"eco-tool__chip\" data-factor=\"0.70\">High<\/button>\n        <\/div>\n        <div class=\"eco-tool__hint\">Set a rough grid factor quickly.<\/div>\n      <\/div>\n\n     \n    <\/div>\n\n    <div class=\"eco-tool__actions\">\n      <button type=\"button\" class=\"wp-element-button eco-tool__btn\" id=\"eco-en-calc-c91e8\">Calculate<\/button>\n      <button type=\"button\" class=\"wp-element-button eco-tool__btn eco-tool__btn--ghost\" id=\"eco-en-reset-c91e8\">Reset<\/button>\n      <div class=\"eco-tool__error\" id=\"eco-en-error-c91e8\" aria-live=\"polite\"><\/div>\n    <\/div>\n  <\/form>\n\n  <div class=\"eco-tool__result\" id=\"eco-en-result-c91e8\" hidden>\n    <h3 class=\"eco-tool__subtitle\">Result<\/h3>\n\n    <div class=\"eco-tool__cards\">\n      <div class=\"eco-tool__card\">\n        <div class=\"eco-tool__metric-label\">Estimated CO\u2082 emissions<\/div>\n        <div class=\"eco-tool__metric-value\" id=\"eco-en-co2-month-c91e8\">\u2014<\/div>\n        <div class=\"eco-tool__metric-sub\" id=\"eco-en-co2-year-c91e8\"><\/div>\n      <\/div>\n\n      <div class=\"eco-tool__card\">\n        <div class=\"eco-tool__metric-label\">Estimated electricity cost<\/div>\n        <div class=\"eco-tool__metric-value\" id=\"eco-en-cost-month-c91e8\">\u2014<\/div>\n        <div class=\"eco-tool__metric-sub\" id=\"eco-en-cost-year-c91e8\"><\/div>\n      <\/div>\n    <\/div>\n\n    <div class=\"eco-tool__card eco-tool__card--wide\">\n      <div class=\"eco-tool__metric-label\">Per person (estimate)<\/div>\n      <div class=\"eco-tool__metric-value\" id=\"eco-en-pp-co2-c91e8\">\u2014<\/div>\n      <div class=\"eco-tool__metric-sub eco-tool__muted\" id=\"eco-en-tip-c91e8\"><\/div>\n    <\/div>\n\n    <p class=\"eco-tool__note\">\n      Approximate estimate only. Grid factors vary widely by country and time of day. Use a local factor for better accuracy.\n    <\/p>\n  <\/div>\n\n  <details class=\"eco-tool__details\">\n    <summary class=\"eco-tool__summary\">How we calculate<\/summary>\n    <div class=\"eco-tool__details-body\">\n      <p class=\"eco-tool__text\">\n        CO\u2082 (kg) = kWh \u00d7 grid emission factor (kg CO\u2082\/kWh). Cost = kWh \u00d7 price. Monthly values are multiplied by 12 for yearly estimates.\n      <\/p>\n      <ul class=\"eco-tool__list\" id=\"eco-en-factors-c91e8\"><\/ul>\n    <\/div>\n  <\/details>\n<\/div>\n\n<style>\n.eco-tool{\n  border: 1px solid rgba(0,0,0,.12);\n  border-radius: 12px;\n  padding: 16px;\n}\n.eco-tool__header{ margin-bottom: 12px; }\n.eco-tool__title{ margin: 0 0 8px; }\n.eco-tool__lead{ margin: 0; opacity: .9; }\n\n.eco-tool__form{ margin-top: 12px; }\n\n.eco-tool__grid3{\n  display: grid;\n  grid-template-columns: 1fr;\n  gap: 16px;\n}\n@media (min-width: 860px){\n  .eco-tool__grid3{ grid-template-columns: 1fr 1fr 1fr; }\n}\n\n.eco-tool__field{ display: flex; flex-direction: column; gap: 6px; }\n.eco-tool__label{ font-weight: 600; }\n\n.eco-tool__input{\n  width: 100%;\n  height: 44px;\n  padding: 0 12px;\n  border: 1px solid rgba(0,0,0,.20);\n  border-radius: 10px;\n  background: #fff;\n  box-sizing: border-box;\n  font: inherit;\n}\n\n\/* Select alignment + arrow *\/\n.eco-tool select.eco-tool__input{\n  appearance: none;\n  -webkit-appearance: none;\n  line-height: 44px;\n  padding-right: 40px;\n  background-image:\n    linear-gradient(45deg, transparent 50%, rgba(0,0,0,.60) 50%),\n    linear-gradient(135deg, rgba(0,0,0,.60) 50%, transparent 50%);\n  background-position:\n    calc(100% - 18px) 50%,\n    calc(100% - 12px) 50%;\n  background-size: 6px 6px;\n  background-repeat: no-repeat;\n}\n\n\/* Equal hint height for symmetry *\/\n.eco-tool__hint{\n  font-size: .92em;\n  opacity: .78;\n  min-height: 38px;\n}\n\n\/* Preset chips *\/\n.eco-tool__presets{\n  display: flex;\n  flex-wrap: wrap;\n  gap: 8px;\n  padding: 10px 12px;\n  border: 1px solid rgba(0,0,0,.12);\n  border-radius: 10px;\n  background: rgba(0,0,0,.02);\n}\n.eco-tool__chip{\n  border: 1px solid rgba(0,0,0,.18);\n  background: transparent;\n  border-radius: 999px;\n  padding: 6px 10px;\n  cursor: pointer;\n  font: inherit;\n}\n.eco-tool__chip:hover,\n.eco-tool__chip:focus{\n  background: rgba(0,0,0,.06);\n  border-color: rgba(0,0,0,.30);\n}\n\n.eco-tool__actions{\n  display: flex;\n  flex-wrap: wrap;\n  gap: 10px;\n  align-items: center;\n  margin-top: 16px;\n}\n\n.eco-tool__btn{ padding: 10px 22px; }\n.eco-tool__btn--ghost{\n  background: transparent !important;\n  border: 1px solid rgba(0,0,0,.20) !important;\n}\n.eco-tool__btn--ghost:hover,\n.eco-tool__btn--ghost:focus{\n  background: rgba(0,0,0,.06) !important;\n  border-color: rgba(0,0,0,.35) !important;\n}\n\n.eco-tool__error{\n  min-height: 1.2em;\n  font-weight: 600;\n  flex: 1 1 240px;\n}\n\n.eco-tool__result{ margin-top: 16px; }\n.eco-tool__subtitle{ margin: 0 0 10px; }\n\n.eco-tool__cards{\n  display: grid;\n  gap: 10px;\n  grid-template-columns: 1fr;\n}\n@media (min-width: 860px){\n  .eco-tool__cards{ grid-template-columns: 1fr 1fr; }\n}\n\n.eco-tool__card{\n  border: 1px solid rgba(0,0,0,.12);\n  border-radius: 12px;\n  padding: 12px;\n}\n.eco-tool__card--wide{ margin-top: 10px; }\n\n.eco-tool__metric-label{ opacity: .85; font-weight: 600; }\n.eco-tool__metric-value{ font-size: 1.6em; font-weight: 800; margin-top: 6px; line-height: 1.1; }\n.eco-tool__metric-sub{ opacity: .85; margin-top: 6px; }\n.eco-tool__muted{ opacity: .8; }\n\n.eco-tool__note{ margin: 10px 0 0; opacity: .9; }\n\n.eco-tool__details{ margin-top: 14px; }\n.eco-tool__summary{ cursor: pointer; font-weight: 700; }\n.eco-tool__details-body{ margin-top: 10px; }\n.eco-tool__text{ margin: 0 0 10px; }\n.eco-tool__list{ margin: 0; padding-left: 18px; }\n\n.eco-tool__spacerbox{\n  background: transparent;\n  border: 1px dashed rgba(0,0,0,.10);\n}\n.eco-tool__spacer .eco-tool__spacerbox{ height: 44px; }\n@media (max-width: 859px){\n  .eco-tool__spacer{ display: none; }\n}\n<\/style>\n\n<script>\n(function(){\n  const S = \"c91e8\";\n  const el = (id) => document.getElementById(id + \"-\" + S);\n\n  const peopleEl = el(\"eco-en-people\");\n  const kwhEl = el(\"eco-en-kwh\");\n  const factorEl = el(\"eco-en-factor\");\n  const priceEl = el(\"eco-en-price\");\n  const currencyEl = el(\"eco-en-currency\");\n\n  const calcBtn = el(\"eco-en-calc\");\n  const resetBtn = el(\"eco-en-reset\");\n  const errorEl = el(\"eco-en-error\");\n\n  const resultEl = el(\"eco-en-result\");\n  const co2MonthEl = el(\"eco-en-co2-month\");\n  const co2YearEl = el(\"eco-en-co2-year\");\n  const costMonthEl = el(\"eco-en-cost-month\");\n  const costYearEl = el(\"eco-en-cost-year\");\n  const ppCo2El = el(\"eco-en-pp-co2\");\n  const tipEl = el(\"eco-en-tip\");\n  const factorsEl = el(\"eco-en-factors\");\n\n  const chips = document.querySelectorAll('#eco-tool-energy-' + S + ' .eco-tool__chip');\n\n  function setError(msg){ errorEl.textContent = msg || \"\"; }\n  function n(v){ return Number(v); }\n  function okNonNeg(x){ return Number.isFinite(x) && x >= 0; }\n\n  function fmtKg(x){\n    const v = Math.round(x * 10) \/ 10;\n    return v.toLocaleString(undefined, { minimumFractionDigits: 1, maximumFractionDigits: 1 });\n  }\n\n  function fmtMoney(x){\n    const sym = currencyEl.value || \"$\";\n    const v = Math.round(x * 100) \/ 100;\n    return sym + v.toLocaleString(undefined, { minimumFractionDigits: 2, maximumFractionDigits: 2 });\n  }\n\n  function fillFactors(){\n    factorsEl.innerHTML = [\n      `<li><strong>CO\u2082:<\/strong> kWh \u00d7 factor (kg CO\u2082\/kWh)<\/li>`,\n      `<li><strong>Cost:<\/strong> kWh \u00d7 price<\/li>`,\n      `<li><strong>Year:<\/strong> monthly \u00d7 12<\/li>`\n    ].join(\"\");\n  }\n\n  function calculate(){\n    setError(\"\");\n\n    const people = n(peopleEl.value);\n    const kwh = n(kwhEl.value);\n    const factor = n(factorEl.value);\n    const price = n(priceEl.value);\n\n    if (!Number.isFinite(people) || people < 1){\n      setError(\"Please enter the number of people (minimum 1).\");\n      resultEl.hidden = true;\n      return;\n    }\n    if (!okNonNeg(kwh)){\n      setError(\"Please enter a valid monthly kWh value (0 or more).\");\n      resultEl.hidden = true;\n      return;\n    }\n    if (!okNonNeg(factor)){\n      setError(\"Please enter a valid emission factor (0 or more).\");\n      resultEl.hidden = true;\n      return;\n    }\n    if (!okNonNeg(price)){\n      setError(\"Please enter a valid electricity price (0 or more).\");\n      resultEl.hidden = true;\n      return;\n    }\n\n    const co2Month = kwh * factor;\n    const co2Year = co2Month * 12;\n\n    const costMonth = kwh * price;\n    const costYear = costMonth * 12;\n\n    const ppYear = co2Year \/ people;\n\n    co2MonthEl.textContent = `${fmtKg(co2Month)} kg CO\u2082 \/ month`;\n    co2YearEl.textContent = `${fmtKg(co2Year)} kg CO\u2082 \/ year`;\n\n    costMonthEl.textContent = `${fmtMoney(costMonth)} \/ month`;\n    costYearEl.textContent = `${fmtMoney(costYear)} \/ year`;\n\n    ppCo2El.textContent = `${fmtKg(ppYear)} kg CO\u2082 \/ year per person`;\n\n    \/\/ Simple tip\n    let tip = \"Tip: Heating\/cooling and hot water are often the biggest electricity drivers.\";\n    if (kwh > 600) tip = \"Tip: High usage\u2014check heating\/cooling settings, insulation, and standby power.\";\n    else if (kwh < 150) tip = \"Tip: Low usage\u2014nice! Focus on maintaining efficient habits.\";\n    tipEl.textContent = tip;\n\n    resultEl.hidden = false;\n  }\n\n  function reset(){\n    setError(\"\");\n    peopleEl.value = \"1\";\n    kwhEl.value = \"300\";\n    factorEl.value = \"0.40\";\n    priceEl.value = \"0.20\";\n    currencyEl.value = \"$\";\n    resultEl.hidden = true;\n  }\n\n  chips.forEach(btn => {\n    btn.addEventListener(\"click\", function(){\n      const v = Number(this.getAttribute(\"data-factor\"));\n      if (Number.isFinite(v)) factorEl.value = String(v);\n    });\n  });\n\n  fillFactors();\n  calcBtn.addEventListener(\"click\", calculate);\n  resetBtn.addEventListener(\"click\", reset);\n})();\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Home Energy &#038; CO\u2082 Calculator Estimate electricity-related CO\u2082 emissions from your monthly usage. This is an approximate estimate; real emissions depend on your local grid mix. People inhousehold Used for&hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":2432,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","footnotes":""},"_links":{"self":[{"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/pages\/2153"}],"collection":[{"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nature-o.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2153"}],"version-history":[{"count":3,"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/pages\/2153\/revisions"}],"predecessor-version":[{"id":2286,"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/pages\/2153\/revisions\/2286"}],"up":[{"embeddable":true,"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/pages\/2432"}],"wp:attachment":[{"href":"https:\/\/nature-o.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2153"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}