Comparisons

The common decisions, with an actual answer at the end of each.

Solar Lease vs Buy
Upfront cost, lifetime savings, and the 2026 tax-credit change.
Solar Panels: Series vs Parallel
Voltage vs current, shade behavior, and which wiring to use.
Monocrystalline vs Polycrystalline
Efficiency, cost, and space compared. Which panel type to buy.
String Inverter vs Microinverter
Central box vs per-panel, shade handling, and reliability.
Solar Generator vs Gas Generator
Noise, fuel, runtime, and cost for backup power.
On-Grid vs Off-Grid Solar
Cost, batteries, and outage backup, with a pick for most homes.
Lithium vs Lead-Acid Batteries
Cycle life, usable capacity, and real cost per kWh for solar storage.
Ground-Mount vs Roof-Mount Solar
Cost, output, maintenance, and land use compared.
12V vs 24V vs 48V Solar
Choosing system voltage by power, wiring cost, and efficiency.
MPPT vs PWM Charge Controller
Efficiency, voltage matching, and cost compared. Which controller to buy.
LiFePO4 vs Lithium-Ion Batteries
Cycle life, safety, energy density, and cost per kWh for solar. Which chemistry to buy.