Learn about solar energy
Clear, honest explanations that help you understand the trade-offs before contacting an installer.
Explore by decision
Six connected learning hubs
Each hub connects a direct answer, supporting guides, the appropriate calculators, sources, limitations, and the next step in the solar journey.
Solar cost and savings in the Philippines
Understand solar cost, savings, payback, financing, and quotation assumptions before comparing Philippine proposals.
Open topic hubSolar system sizing for Philippine properties
Connect monthly electricity use, panel count, inverter sizing, roof space, shading, and production assumptions.
Open topic hubSolar battery and brownout planning
Plan essential loads, battery capacity, runtime, inverter surge, and hybrid or off-grid backup limitations.
Open topic hubChoose and compare solar installers
Shortlist installers, normalize quotations, identify proposal gaps, check warranties, and prepare the same questions for every company.
Open topic hubNet metering and solar regulations in the Philippines
Understand net metering, application stages, documents, utility differences, permits, and source dates without treating general guidance as approval.
Open topic hubUnderstand household electricity use
Read a bill, estimate appliance and air-conditioner use, understand monthly kWh, and build a stronger solar baseline.
Open topic hubRecommended starting points
Read these before requesting quotes
35 guides found
Costs & savings
14 minSolar panel cost in the Philippines
Understand what really changes the price of a residential solar proposal, and how to compare quotations fairly.
Read guide
System design
13 minHow many panels a Philippine home needs
Translate electricity use, target savings, and roof limits into a practical panel-count estimate.
Read guide
System design
14 minGrid-tied versus hybrid solar
Compare lower-cost daytime savings with higher-cost backup-ready systems.
Read guide
Backup & batteries
13 minDoes solar work during brownouts?
Learn why many solar systems shut down during outages and what is required for backup power.
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Costs & savings
14 minSolar payback period explained
Understand what payback really measures and why simplistic savings claims can mislead buyers.
Read guide
Installers & quotes
15 minChoosing a solar installer
A practical due-diligence guide for shortlisting and comparing installers.
Read guide
System design
13 minSolar inverter sizing
Understand inverter range, DC-to-AC ratio, clipping, and backup constraints.
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Backup & batteries
14 minBattery sizing for backup
Estimate runtime, usable capacity, and the real limits of residential battery backup.
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System design
13 minSolar roof-area requirements
Check how roof size, shape, and shading affect how much solar you can fit.
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Ownership
12 minUnderstanding an electricity bill
Read your bill properly before using it to justify solar or appliance decisions.
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Ownership
12 minHigh-consumption appliances
Identify which household appliances are most likely driving your electricity cost.
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Costs & savings
12 minAir-conditioner electricity costs
Estimate realistic cooling costs and avoid common assumptions about inverter savings.
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Business & farm
14 minSolar for farms
Think through pumps, ventilation, lighting, and cold loads before buying farm solar.
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Business & farm
13 minSolar water pumps
Plan pump solar using water volume, head, runtime, and system efficiency.
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Costs & savings
13 minCash versus solar financing
Compare lower upfront cost with financing-adjusted total project cost.
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Installers & quotes
14 minCommon solar installation mistakes
Avoid the failures that often turn a promising system into a frustrating one.
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Costs & savings
13 minSolar maintenance costs
Budget realistically for cleaning, inspections, inverter replacement, and long-term care.
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System design
12 minPanel lifespan and degradation
Understand long-term output decline without believing unrealistic “forever” claims.
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Installers & quotes
14 minSolar quotation checklist
Normalize quotations so you compare complete scope instead of catchy prices.
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Installers & quotes
13 minQuestions to ask solar installers
Use a disciplined question list before you sign or pay a reservation fee.
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Costs & savings
13 minNet metering in the Philippines
Understand what net metering can and cannot do for residential solar economics.
Read guide
Start here
14 minWhen solar may not be worth it
Recognize the situations where delaying solar is the better decision.
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System design
13 minRoof orientation and shading
See how direction, obstructions, and shade timing affect practical solar output.
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Business & farm
14 minSolar for small businesses
Evaluate daytime loads, payback, and operational fit for commercial solar.
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Backup & batteries
12 minBackup load prioritization
Decide what should stay on during outages before you overspend on batteries.
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Costs & savings
13 minSolar loan red flags
Spot financing terms that can quietly make a solar deal much worse.
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Backup & batteries
14 minOff-grid solar basics
Learn when off-grid solar makes sense and why it demands more discipline.
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Installers & quotes
13 minSolar permits and utility steps in the Philippines
Know the documents, approvals, and expectations before installation begins.
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Ownership
12 minSolar monitoring basics
Use monitoring data properly instead of only checking the app when something feels wrong.
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Installers & quotes
13 minPanel brand versus installer quality
Know when workmanship and design matter more than chasing famous brands.
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Backup & batteries
13 minBattery replacement planning
Budget for the part of hybrid ownership that many sales pitches skip.
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Installers & quotes
13 minSolar proposal red flags
Identify warning signs before a vague or overhyped proposal costs you money.
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System design
12 minChecking roof condition before solar
Make sure your roof is ready before you install a system meant to stay for years.
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Installers & quotes
13 minSolar insurance and warranties
Understand what protection actually exists after installation.
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Backup & batteries
14 minBattery versus generator backup
Compare silence and convenience with fuel flexibility and lower upfront cost.
Read guideTurn what you learned into a practical plan
Estimate your system, check whether solar fits your situation, then compare installers with better questions.