Start with your load list
List daily watt-hours first. It keeps panel and battery choices grounded. Guessing at loads usually inflates cost and leads to oversized systems.
Solar power, explained clearly
Understand solar systems fast.
Practical guides, cost breakdowns, and sizing help for real-world solar setups. Start with the basics or jump straight to the calculator you need.
Each guide is written to be neutral and practical, with clear assumptions and safety notes so you can plan with confidence.
Every guide includes key takeaways, examples, and links to related topics.
The goal is clarity, not sales.
Use it as a living checklist. Update it as your plans evolve.
Quick Start
Use this short path if you want a reliable system without getting overwhelmed.
- Estimate your daily energy use.
- Size panels and battery capacity.
- Compare components and costs.
If you already have a system, jump to troubleshooting and cost guides to spot easy wins.
Keep your load list handy as you read.
Start with sizing →How to use these guides
Solar planning is a chain of decisions. If you start with real daily energy use, the rest of the system falls into place more easily.
Each section is designed to answer one clear question, then link you to the next step. Use the calculators to sanity-check numbers before you price hardware.
If you are new, start with solar basics and sizing. If you already own a system, go straight to maintenance and troubleshooting.
If you are comparing options, the comparisons section is a fast way to see tradeoffs without marketing hype.
For budgeting, start with the cost breakdowns and adjust the system size until it matches your real use.
Use the header navigation to jump between categories as your questions change.
Pick a realistic system size
Use the sizing guide to define a target, then decide whether you want daily solar coverage or a backup generator for cloudy weeks.
Keep wiring and safety visible
Wiring, protection, and disconnects are not optional. The wiring guides show how to avoid voltage drop, overheating, and hard-to-service layouts.
Core guides
Start with a main guide, then follow links to deeper supporting articles.
These guides cover the fundamentals: how solar works, how to size a system, and what each component does.
If you only read one guide, start with sizing so you can match expectations to budget.
Work through them in order if you want a full, start-to-finish path.
Solar Power Basics
Clear explanations and pros/cons to build confidence. Covers key terms, system types, and what to expect from solar.
Explore basics →DIY Off-Grid Energy Experiments
Physics-based experiments (micro-hydro, pedal power) that pair with solar. Good for learning realistic output before buying gear.
Browse DIY experiments →Components
Panels, inverters, charge controllers, and batteries. Helps you choose compatible parts and avoid mismatches.
See components →Sizing & Calculations
System sizing steps, calculators, and load planning. Walks through load lists, sun hours, and battery autonomy.
Start sizing →Costs & Economics
Cost breakdowns, payback, and price comparisons. Shows where budgets grow and how to compare options.
View costs →Install & Maintain
DIY overview, maintenance checklists, and troubleshooting. Includes safety checks, cleaning guidance, and common fixes.
Learn maintenance →Use-Case Guides
RVs, cabins, sheds, camping, and backup systems. Tailored to space limits, weather, and backup needs.
Browse use cases →Wiring & Protection
Wire size, fuses vs breakers, and safe wiring decisions. Explains disconnect placement and voltage drop basics.
Start wiring decisions →Calculators
Fast estimates that link to the deeper guides.
Use these to sanity-check your assumptions before you price out equipment.
They are planning tools, not exact predictions, so use real sun hours and realistic loads.
Solar Panel Output
Estimate watts and daily energy based on panel size and sun hours. Includes efficiency assumptions and seasonal context.
Use output calculator →Battery Capacity
Size storage for your daily load and desired backup time. Includes depth-of-discharge and autonomy assumptions.
Use battery calculator →Comparisons
High-value, neutral comparisons that answer common questions.
Each comparison highlights tradeoffs rather than picking a single winner.
Use these to decide which tradeoffs matter most for your roof, wiring runs, and daily loads.
MPPT vs PWM
See efficiency differences, price, and use cases. Helpful for controller and wiring decisions.
Compare controllers →Li-ion vs Lead-acid
Compare lifespan, cost, and performance tradeoffs. Highlights cycle life, weight, and maintenance.
Compare batteries →Micro vs String Inverters
Performance and reliability differences explained. Focuses on shading, monitoring, and service access.
Compare inverters →Pure Sine vs Modified Sine
Compatibility differences for common appliances and electronics. Useful when running sensitive devices.
Compare waveforms →12V vs 24V vs 48V Solar
Voltage choice affects wiring, scaling, and inverter draw. Covers expansion and equipment availability.
Compare system voltages →Cost guides
Breakdowns that explain where the money goes.
Use ranges and examples to build a realistic budget for your use case.
Costs vary by region, access, and labor, so treat ranges as planning inputs rather than quotes.
Solar System Cost Breakdown
Panels, battery, inverter, and balance-of-system costs. Includes common add-ons and labor impacts.
See full breakdown →DIY vs Installer Cost
Understand where professional installation adds value. Compare labor, permits, and long-term support.
Compare costs →Solar Panel Cost Per Watt
Typical $/W ranges and what changes panel pricing. Includes shipping, efficiency, and roof space limits.
See panel pricing →Solar Battery Cost Per kWh
How to compare battery prices using usable kWh and lifespan. Covers cycle life and warranty terms.
See battery pricing →Not sure where to start?
Start with the sizing guide, then choose components and compare costs.
Use it as an anchor, then branch into wiring and protection.
Use-case deep dives
Practical guides for specific setups with clear next steps.
These articles focus on real-world constraints like space, seasonality, and backup needs.
If you travel or live off-grid, these guides help balance roof space, battery weight, and daily energy use.
RV Solar Sizing
Panels, battery, and inverter sizing for real RV loads. Includes roof space and battery weight limits.
Size an RV system →RV Solar Cost Breakdown
Typical RV solar budgets and where costs come from. Shows ranges for weekend and full-time use.
See RV costs →Maintenance & troubleshooting
Fix common issues and understand what’s normal.
Use these checklists to diagnose issues before they become expensive problems.
Start with simple checks like shading and loose connections before replacing equipment.
Low Solar Output Troubleshooting
Common causes: seasonality, shading, dirty panels, and inverter alerts. Start with simple checks before replacing gear.
Run the checklist →Solar Battery Not Charging
Separate low input, normal controller behavior, and real wiring/battery issues. Includes safe checks and when to call a pro.
Troubleshoot charging →Solar Panel Cleaning Cost
DIY vs professional pricing and when cleaning is worth it. Helps you compare cost to energy gains.
See typical costs →