Array size
This is a key quote variable. Ask each contractor to state the allowance, product specification and labour scope in writing.
Location-aware estimate
Solar panel system cost calculator
Estimate a residential solar array before incentives or tax credits. Your selected country and location set the local pricing assumptions and measurement units automatically.
Planning assumptions
What the solar panel system estimate includes
Panels, inverter, mounting, standard electrical work and installation before incentives. It excludes unusual structural repairs, hazardous-material remediation, financing and major utility upgrades unless the project clearly requires them.
Roof complexity
This is a key quote variable. Ask each contractor to state the allowance, product specification and labour scope in writing.
Inverter
This is a key quote variable. Ask each contractor to state the allowance, product specification and labour scope in writing.
Battery and electrical work
This is a key quote variable. Ask each contractor to state the allowance, product specification and labour scope in writing.
Local quote planning
Keep every comparison within the selected country
The estimate above uses only the selected country's baseline costs, measurement units and local adjustment. It does not display or convert another country's prices.
Local taxes and permissions
Confirm which taxes, permits, inspections, design fees and local-code requirements apply, and whether each contractor includes them.
Comparable written scope
Use the same quantities, products, preparation, labour, removal and warranty requirements when comparing local contractors.
Local contractor evidence
Use the calculator as a planning range, then obtain at least three written quotes from contractors who work in the selected area.
Quote checklist
Compare contractors on the same written scope
Ask for product brand and specification, measured quantity, preparation, protection, labour, removal, disposal, permits, taxes, payment stages, start date, duration, warranty and exclusions. A cheaper quote is not comparable when it omits work that another contractor includes.