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Energy Data

Solar estimates and live electricity prices worldwide

Energy Data gives you live electricity prices for any location and solar generation estimates for any address in the world. Whether you're evaluating rooftop solar economics or tracking energy costs across regions, both answers come back in one place.

Electricity pricing auto-routes to the best regional source: UK gets half-hourly consumer and wholesale rates, Europe gets day-ahead prices for 40+ countries, Australia gets real-time spot prices, and the US gets monthly retail prices by state. Solar estimates work globally, detecting the right radiation dataset for any set of coordinates and returning annual and monthly generation figures.

What you can do

  • electricity_prices — get current electricity prices for any location, auto-routed to the best regional data source
  • solar_estimate — estimate annual solar energy production for a system of any size at any address

Who it's for

Homeowners evaluating solar panel installations, energy analysts monitoring regional prices, researchers comparing electricity costs across countries, and businesses assessing energy costs for new locations.

How to use it

  1. Call electricity_prices with latitude and longitude for any location — it picks the right data source automatically.
  2. Call solar_estimate with coordinates and your system size in kilowatts to get annual and monthly production figures.
  3. Combine both: multiply the annual kWh estimate by the local electricity price to calculate potential savings.

Getting started

Call electricity_prices with your coordinates to see current rates for your region. A NREL API key unlocks richer US solar data.

Electricity Prices

Get current electricity prices for any location. Auto-detects region and queries the best source: UK (half-hourly), EU (day-ahead, 40+ countries), Australia (real-time spot), or US (monthly retail by state).

Returns: Current electricity prices from the best regional source — consumer and/or wholesale rates with time series
Solar Estimate

Estimate solar energy production for any location worldwide. Returns annual and monthly kWh output, solar radiation, capacity factor, and nearest weather station details.

Returns: Annual and monthly solar energy production (kWh), solar radiation, capacity factor, and weather station info
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v0.022026-03-25
  • Replaced stale utility_rates (2012 data) with electricity_prices using live sources
  • UK: Octopus Energy (consumer half-hourly) + Elexon BMRS (wholesale)
  • EU: Energy-Charts day-ahead prices for 40+ countries
  • Australia: AEMO NEM real-time 5-min spot prices
  • US: EIA monthly retail prices by state
  • Auto-routes by coordinates to the best regional data source
v0.012026-03-25
  • Initial release with solar_estimate and utility_rates

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Frequently Asked Questions

Does Energy Data work worldwide or only in a few markets?

Solar estimates work globally. Electricity price coverage is regional: UK half-hourly pricing, EU day-ahead pricing, Australian real-time spot pricing, and US state-level retail pricing.

What do I need to provide for an electricity price lookup?

You pass latitude and longitude. The tool uses those coordinates to detect the best regional data source automatically, so you do not need to choose the market yourself.

What do I need to provide for a solar estimate?

Start with latitude and longitude, then optionally tune the system size, module type, roof mount, tilt, and azimuth. If you omit the advanced settings, the tool uses sensible defaults.

Can I use it to estimate solar savings, not just production?

Yes. A common workflow is to estimate annual solar output with `solar_estimate`, then combine that annual kWh figure with local electricity pricing to estimate value or savings.