Philippine solar learning hub
Choose and compare solar installers
Compare installers with the same project brief and written questions. Verify public records, exact equipment, design assumptions, scope, exclusions, warranties, permits, payment milestones, monitoring, and after-sales responsibility before paying.
Direct answers to the main questions
What is a directory listing?
It is a discovery record based on stated public evidence. It is not accreditation, endorsement, workmanship inspection, or a guarantee of availability.
What makes quotations comparable?
They must state the same core fields: capacity, models, quantities, estimated production, scope, exclusions, warranties, responsibilities, total amount, and payment schedule.
What is a proposal red flag?
Missing models, vague warranties, unexplained production claims, unclear exclusions, large deposits, absent protection details, or pressure to sign before site checks deserve clarification.
Read the supporting guides
Choosing a solar installer
A practical due-diligence guide for shortlisting and comparing installers.
Read the guideSolar quotation checklist
Normalize quotations so you compare complete scope instead of catchy prices.
Read the guideQuestions to ask solar installers
Use a disciplined question list before you sign or pay a reservation fee.
Read the guideSolar proposal red flags
Identify warning signs before a vague or overhyped proposal costs you money.
Read the guidePanel brand versus installer quality
Know when workmanship and design matter more than chasing famous brands.
Read the guideUse the tools with the same assumptions
Keep bill history, electricity rate, daytime use, shading, target, and equipment assumptions consistent. Changing one input between tools can make the outputs look contradictory even when each calculation is working as designed.
Check the proposal before choosing the provider
Use the local quote checker to identify missing models, warranties, scope details, and conflicting production assumptions. Then move confirmed values into the five-quote comparison workspace.
Sources, scope, and limits
This hub organizes educational content and does not replace a site survey, electrical design, structural review, current utility confirmation, or a complete written quotation.