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Utility-Scale Solar Calculator — Texas

MWh/year estimate for a utility-scale plant in Texas — specific yield, PR and monthly generation table.

Screening a solar farm site in Texas? Enter plant capacity in kW (5,000 kW = 5 MW); the output table gives MWh-scale monthly generation from the regional resource. Texas's deregulated ERCOT market means buyback plans vary wildly by retailer — the same roof can pay back in 8 or 14 years depending on the plan you pick. For bankable studies, replace the GHI default with on-site or satellite TMY data.

8,190,236 kWh
Estimated annual production
1,638 kWh/kWp·yr
Specific yield
82%
Performance ratio
$1,146,633
Annual bill value at your rate
Jan368,561 kWh
Feb491,414 kWh
Mar696,170 kWh
Apr819,024 kWh
May941,877 kWh
Jun982,828 kWh
Jul982,828 kWh
Aug859,975 kWh
Sep696,170 kWh
Oct532,365 kWh
Nov409,512 kWh
Dec409,512 kWh

With your numbers: 5000 kW × 5 kWh/m²/day × 365 × 1.10 (plane-of-array) × 82% PR = 8,190,236 kWh/year. First-year figure — subtract ~0.5%/yr panel degradation for later years.

Sources: NREL PVWatts v8 model (POA irradiance × system losses); Global Solar Atlas — long-term GHI, USA — Texas (Austin)

Indicative estimates only, not financial or investment advice. Tariffs, subsidies and net-metering rules change — verify with your DISCOM, utility or installer before committing.

Use the free Utility-Scale Solar Calculator — Texas online — MWh/year estimate for a utility-scale plant in Texas — specific yield, PR and monthly generation table. Runs instantly in your browser: no signup, no upload, mobile-friendly.

About Utility-Scale Solar Calculator — Texas

Screening a solar farm site in Texas? Enter plant capacity in kW (5,000 kW = 5 MW); the output table gives MWh-scale monthly generation from the regional resource. Texas's deregulated ERCOT market means buyback plans vary wildly by retailer — the same roof can pay back in 8 or 14 years depending on the plan you pick. For bankable studies, replace the GHI default with on-site or satellite TMY data.

How to use Utility-Scale Solar Calculator — Texas

  1. 1Enter your system size in kW (or keep the segment-typical default).
  2. 2Fine-tune irradiance, tilt and soiling to match your site — the help text gives local reference values.
  3. 3Read annual kWh, specific yield, PR and the monthly split; set your tariff to price the energy.

Why use Utility-Scale Solar Calculator — Texas?

  • ✓Region-true defaults: long-term irradiance, optimal tilt and local tariff are pre-loaded, not guessed
  • ✓PVWatts-style physics — plane-of-array gain, full loss stack and performance ratio shown transparently
  • ✓Month-by-month generation table exposes the seasonal shape, not just an annual headline
  • ✓Everything computes instantly in your browser — no signup, no quote-form ambush

Frequently asked questions

How accurate is the Utility-Scale Solar Calculator — Texas?+

It uses the same physics as NREL's PVWatts: irradiance × plane-of-array factor × performance ratio. With honest inputs, expect results within ±10% of a professional simulation — good enough for sizing and payback decisions. For bankable projects, follow up with site-measured data and a full TMY simulation.

What is specific yield and what's a good value?+

Specific yield is annual kWh produced per kW of panels. It removes system size from the comparison: 1,400–1,700 kWh/kWp is typical across sunny India, 950–1,100 in Germany or the UK. If a quote promises far above the regional norm, question the assumptions.

Why is my real output lower than the calculator says?+

The usual suspects in order: more shading than assumed, dust (soiling can cost 5–15% where cleaning is irregular), inverter undersizing/clipping, and higher cell temperatures than the default loss stack assumes. Compare measured monthly output against the table here to localize the gap.

Does panel direction matter as much as size?+

Orientation typically moves output 5–25%. Equator-facing at near-latitude tilt is ideal; east/west roofs lose roughly 10–20% but spread generation across the day, which can be worth more under time-of-use tariffs or self-consumption rules.

Embed Utility-Scale Solar Calculator — Texas on your website

Want Utility-Scale Solar Calculator — Texason your own site? Paste this snippet into any HTML page — it's free, with no API key or sign-up. The tool loads in an iframe and keeps working exactly as it does here.

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