⚡

iOS · macOS

Voltara

Day-ahead electricity spot prices for Europe, today and tomorrow. Track 30+ zones with widgets.

Voltara shows you day-ahead electricity spot prices from European energy markets via ENTSO-E. Monitor prices across 30+ bidding zones including Germany, Italy, Greece, Czechia, Romania, Slovakia, Slovenia, and Portugal. See when electricity is cheap and plan your consumption accordingly — charge your EV, run the dishwasher, or heat your home at the right time.

Coming soon on the App Store
30+European Zones
24hPrice Forecast
1hUpdate Interval

Features

Day-Ahead Spot Prices

Hourly electricity prices from the EPEX and ENTSO-E markets. Updated every hour with day-ahead forecasts so you always know what is coming.

30+ European Zones

Coverage across Germany, Italy (6 zones), Greece, Czechia, Romania, Slovakia, Slovenia, Portugal, France, Spain, and more. Choose your local zone.

Home Screen Widget

See the current price and the cheapest upcoming hour directly on your iPhone or iPad home screen. No need to open the app.

Frequently Asked Questions

Where do the prices come from?

Prices are sourced from ENTSO-E (European Network of Transmission System Operators) and EPEX SPOT, the official European energy exchanges.

Which countries are supported?

Germany, Italy (6 bidding zones), Greece, Czechia, Romania, Slovakia, Slovenia, Portugal, France, Spain, Austria, Switzerland, and more — over 30 European zones.

How is Voltara different from Wattora?

Voltara is a separate app that is not released yet; its price will be shown on the App Store at launch. Wattora is available now, free with an optional premium subscription. Both show the same price data.

Do I need a smart meter?

No. Voltara shows market spot prices for your zone. You can use this information to manually shift consumption to cheap hours.

Voltara — coming soon

Day-ahead electricity spot prices for Europe, today and tomorrow. Track 30+ zones with widgets.

Coming soon on the App Store