Solar Calculator

A WordPress plugin that helps homeowners, installers, and energy consultants easily calculate the potential solar power production of a specific location

Features include:
– Intuitive, responsive frontend calculator
– Featuring an advanced battery comparison chart and table
– Customizable backend settings (regional defaults, pricing presets etc.)
– Multilingual support (WPML, Polylang, etc.)
– Accurate solar yield estimates based on real data
– Battery and installation cost calculators
– Translation-ready with .po/.mo files (DE, GR, IT, EN, ES, FR)

Ideal for solar companies, energy advisors, and eco-conscious site owners.

Made in Germany – optimized for European conditions.

Developer Info

Plugin structure:
/wp-content/plugins/
└── solarrechner/
├── solarrechner.php ← Main plugin file
├── admin/
├── assets/
├── includes/
├── languages/
└── templates/
└── solarrechner-frontend-i18n.php ← Frontend template with multilingual support

1. Upload the plugin to /wp-content/plugins/ or use the WordPress plugin installer.
2. Activate the plugin via the ‘Plugins’ menu in WordPress.
3. Configure base values under the settings panel and save changes.
4. Insert the shortcode [solar-calculator] into any page or post.
5. Insert the shortcode [login_logout_link] were ever you want.
6. If you want, create a user for maintaining only the backend parameters and give him the role solar_super_user.

1. 

   Solar Calculator results

2. 

   Solar Calculator line chart

3. 

   Advanced battery comparison

1.1.4

• Language dependent currency symbols
• curruncy switcher
• some minor bugfixes

1.1.3

• Enhanced language support with fallback to englisch if missed
• updated language files.