Solar Panels on Fondsites

Solar Panel Buying Guide: Roof, Contract, Inverter, and Battery Questions

Mon, 04 May 2026 00:00:00 +0000

Solar buying is a contract decision, a roof decision, and an electrical design decision. The panels are only one piece.

Before comparing proposals, make sure you understand your roof, utility rules, expected production, inverter design, and what happens during outages.

What to compare in a proposal

Area	Questions
Roof	Age, condition, orientation, shade, available area
Array	Panel count, layout, production estimate, degradation assumptions
Inverter	String inverter, microinverters, optimizers, monitoring
Battery	Included, battery-ready, or not part of the design
Outages	Does solar shut down without a battery or special equipment?
Utility	Interconnection, export rules, metering, approval timeline
Contract	Ownership, lease, power purchase agreement, financing, warranties

The shade and roof problem

Shading can make a good-looking roof perform poorly. Trees, chimneys, dormers, neighboring buildings, and roof planes all matter. Ask for the shade analysis and expected production by month, not just an annual number.

Solar Panel Sizing: Daily kWh, Sun Hours, Roof Reality, and Storage

Mon, 04 May 2026 00:00:00 +0000

Solar panel sizing starts with annual and daily energy use, but it does not end there.

Your roof, shade, utility rules, inverter, battery plan, and seasonal production all shape the right system.

Start with energy use

Look at utility bills to estimate annual kWh and seasonal peaks. Then ask what the solar system is supposed to do:

offset annual electricity use
reduce daytime grid use
charge a home battery
support outage backup
prepare for EV charging, heat pump, or induction cooking

Future electrification can change the load profile, so do not size from last year’s bills if you know major loads are coming.

Solar Panels vs Solar Generators: Production System or Battery Kit?

Mon, 04 May 2026 00:00:00 +0000

“Solar generator” usually means a portable battery power station paired with solar panels. It does not generate electricity by itself. The panels generate. The box stores and inverts.

Rooftop solar is a building system. A solar generator kit is portable gear.

Comparison

Factor	Rooftop solar	Solar generator kit
Scale	Home-scale production	Small to medium portable loads
Installation	Permanent, permitted	Usually portable
Outage behavior	Needs proper inverter/battery design	Battery output available if charged
Renters	Usually difficult	Often practical
Maintenance	Roof and inverter system	Battery and portable panels
Best use	Long-term energy production	Outages, camping, small backup

When rooftop solar fits

Choose rooftop solar when you own the roof, expect long-term use, have suitable sun exposure, and want a system designed around household electricity use.

Solar Panel Maintenance: Monitoring, Cleaning, Shade, and Service Calls

Mon, 04 May 2026 00:00:00 +0000

Solar maintenance should feel boring: monitor production, notice faults, keep obvious shade under control, and call professionals for electrical or roof work.

Monthly check

review production monitoring
look for inverter or app alerts
compare output against seasonal expectations
check for new shade from trees or structures
inspect from the ground for visible damage
keep records of service calls

Do not panic over one cloudy week. Look for persistent changes that do not match weather or season.