Description
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
Screenshots
Solar Calculator results 
Solar Calculator line chart 
Advanced battery comparison
Installation
- Upload the plugin to
/wp-content/plugins/or use the WordPress plugin installer. - Activate the plugin via the ‘Plugins’ menu in WordPress.
- Configure base values under the settings panel and save changes.
- Insert the shortcode
[solar-calculator]into any page or post. - Insert the shortcode
[login_logout_link]were ever you want. - If you want, create a user for maintaining only the backend parameters and give him the role solar_super_user.
Reviews
There are no reviews for this plugin.
Contributors & Developers
“Solar Calculator” is open source software. The following people have contributed to this plugin.
Contributors
Translate “Solar Calculator” into your language.
Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
Changelog
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.