Embed trivolt Calculators

How it works

Each embed URL renders the calculator in a stripped container — no header, no sidebar, no ads. The calculator is fully functional including URL hash state (pre-filled inputs) and PDF export.

URL hash state works in embeds. Pre-fill inputs by appending a hash:

<iframe
  src="https://trivolt.ac/embed/pue-calculator#tf=1500&it=1020"
  ...>

Dark backgrounds? Add ?theme=dark to flip the embed to dark mode without affecting your host page:
https://trivolt.ac/embed/pue-calculator?theme=dark

sandbox compatibility

If your host page uses the sandbox attribute, include allow-scripts allow-same-origin. HTTPS is required — embeds over HTTP will be blocked by browsers.

PUE Calculator

Power Usage Effectiveness + EnEfG compliance check

<iframe
  src="https://trivolt.ac/embed/pue-calculator"
  width="100%"
  height="520"
  title="PUE Calculator — trivolt.ac"
  loading="lazy"
  style="border: none;">
</iframe>

Suggested height: 520px. Preview →

UPS Sizing Calculator

Size UPS capacity and calculate battery runtime

<iframe
  src="https://trivolt.ac/embed/ups-sizing-calculator"
  width="100%"
  height="600"
  title="UPS Sizing Calculator — trivolt.ac"
  loading="lazy"
  style="border: none;">
</iframe>

Suggested height: 600px. Preview →

Rack Density Calculator

Average kW/rack and required cooling tier

<iframe
  src="https://trivolt.ac/embed/rack-density-calculator"
  width="100%"
  height="480"
  title="Rack Density Calculator — trivolt.ac"
  loading="lazy"
  style="border: none;">
</iframe>

Suggested height: 480px. Preview →

Power Chain Efficiency Calculator

Cascaded losses through UPS, PDU, and cabling

<iframe
  src="https://trivolt.ac/embed/power-chain-efficiency"
  width="100%"
  height="520"
  title="Power Chain Efficiency Calculator — trivolt.ac"
  loading="lazy"
  style="border: none;">
</iframe>

Suggested height: 520px. Preview →

DC Cooling Load Calculator

Cooling capacity from IT load and PUE

<iframe
  src="https://trivolt.ac/embed/dc-cooling-load"
  width="100%"
  height="480"
  title="DC Cooling Load Calculator — trivolt.ac"
  loading="lazy"
  style="border: none;">
</iframe>

Suggested height: 480px. Preview →

DC Efficiency Audit

Five-dimension efficiency score with improvement recommendations

<iframe
  src="https://trivolt.ac/embed/data-center-audit"
  width="100%"
  height="720"
  title="DC Efficiency Audit — trivolt.ac"
  loading="lazy"
  style="border: none;">
</iframe>

Suggested height: 720px. Preview →

DC Critical Equipment Sizing

Size UPS, generator, transformer, switchgear, cooling, PDUs, and battery for new builds or upgrades

<iframe
  src="https://trivolt.ac/embed/dc-critical-sizing"
  width="100%"
  height="900"
  title="DC Critical Equipment Sizing — trivolt.ac"
  loading="lazy"
  style="border: none;">
</iframe>

Suggested height: 900px. Preview →

postMessage signals

Each embed sends signals to the parent page via window.postMessage:

// Listen for signals in your host page
window.addEventListener('message', (event) => {
  if (event.origin !== 'https://trivolt.ac') return

  if (event.data.type === 'trivolt:resize') {
    // Auto-size the iframe to content height
    iframe.style.height = event.data.height + 'px'
  }

  if (event.data.type === 'trivolt:error') {
    // slug not found — event.data.code === 'NOT_FOUND'
    console.warn('trivolt embed error:', event.data)
  }
})

Stability Guarantee

Embed URLs are a public API. The slugs listed on this page are permanent — they will not be renamed, redirected, or removed without a minimum 12-month deprecation notice posted at /embed-calculators#changelog.

The current embed behavior is v1 (no version prefix in the URL). If a breaking change is ever required, a versioned path (e.g., /embed/v2/pue-calculator) will be introduced and the v1 path will continue to work.

What "permanent" means: the calculator at that URL will continue to function and accept the same input parameters. Minor UI updates (colors, label text) may happen without notice and are not considered breaking changes.

Changelog

2026-04-09 — v1 launch. Six DC calculators available: PUE, UPS Sizing, Rack Density, Power Chain Efficiency, DC Cooling Load, DC Efficiency Audit. postMessage resize + error signals. ?theme=dark support. URL hash pre-fill confirmed working.