Voltij Stroomprijs

Show your visitors what electricity costs today, hour by hour, on the Dutch day-ahead market. The cheapest two-hour block is highlighted, so people with a dynamic contract, solar panels, a heat pump or an electric car can see when to run the washing machine or charge the car.

• Block: add "Electricity price today" in the block editor (category Widgets).
• Shortcode: [voltij_stroomprijs], or [voltij_stroomprijs theme="dark"] for a dark background.
• Widget: "Electricity price today (Voltij)" for a sidebar or footer.

The image is updated every night shortly after midnight (Amsterdam time). If today's prices are not available yet, the image says so. It never shows an invented number. The prices are wholesale day-ahead prices for the Netherlands (source: ENTSO-E), without energy tax, VAT and supplier mark-up. Good to know:

• No JavaScript and no cookies on your public site: it is a plain image.
• Your site does not fetch or store anything; your visitors' browsers load the image from voltij.nl.
• Optionally link the image to voltij.nl, where visitors see all hourly prices of today and tomorrow. This is off by default; switch it on in the block or widget settings, or with link="yes" in the shortcode.

The plugin interface is in English and can be translated on translate.wordpress.org.

1.0.0

• First version: block, shortcode and widget.