I can build the script for your reference calculator that can embed into your website. I am a full stack developer with 8 years of experience in PHP, WordPress, HTML, CSS and JavaScript/Jquery. There are many calculator like "Solar Battery Calculator", "Off Grid Calculator", "Solar system size", "Solar panel cost", "Electricity usage"
QUERY:
1) Do you have any particular calculator needed from above list? or needed all listed calculator?
2) Can you share your existing website link to check?
Looking to hear from you soon.
Kind Regards,
Dip