Start with production
Use an address-specific roof and shade model instead of a citywide promise.
Local homeowner research
Residential solar starts with your home—and your utility.
Explore source-backed city guides that connect roof suitability, electricity use, system design, batteries, incentives, and installer questions in one decision path.
10
local city guides
2
state markets
Source-backed
local context
Balanced
battery guidance
Model the utility
Confirm the current tariff, export treatment, interconnection, and fixed charges.
Compare the contract
Review equipment, total price, financing, incentives, warranties, and transfer terms.
Choose a local guide
Research the market around your home
ZIP lists are supplied target service-area coverage, not a claim that every ZIP sits entirely inside city limits or one utility territory.
CA residential solar
California
Compare local utility rules, strong solar resource, summer cooling loads, batteries, and property-specific roof conditions.
CA
Modesto
Stanislaus County
Central Valley heat and summer air-conditioning load can make usage history more informative than a citywide system-size rule of thumb.
10 target ZIPsMID
CA
Bakersfield
Kern County
Bakersfield’s hot summers make air-conditioning consumption, panel temperature assumptions, and roof condition especially important in the design review.
12 target ZIPsPG&E
CA
Salinas
Monterey County
Salinas’s coastal influence makes a site-specific shade and marine-layer review more useful than a simple inland production assumption.
7 target ZIPsPG&E
CA
Santa Rosa
Sonoma County
Santa Rosa roof orientation, mature trees, seasonal weather, and roof age can influence both production and project scope.
8 target ZIPsPG&E
CA
Fresno
Fresno County
Very hot summers and air-conditioning demand make load history, panel temperature assumptions, and electrical capacity important Fresno cost inputs.
33 target ZIPsPG&E
CA
Los Angeles
Los Angeles County
Production depends on roof orientation, shade, equipment, weather, and the address-specific utility; local interconnection rules also vary between LADWP and SCE.
5 target ZIPsMID
CA
San Diego
San Diego County
Coastal marine layers, roof orientation, shade, and equipment assumptions can affect production at a specific San Diego property.
5 target ZIPsMID
CA
San Jose
Santa Clara County
A San Jose production model should account for roof orientation, mature-tree shade, equipment, and address-specific weather assumptions.
5 target ZIPsPG&E
CA
Sacramento
Sacramento County
Hot, dry summers provide intense solar generation potential and drive high air conditioning use.
5 target ZIPsMID
CA
Oakland
Alameda County
Oakland's varied geography—from hills to flatlands—means roof orientation and shading from trees are critical design factors.
5 target ZIPsPG&E
IL residential solar
Illinois
Compare four-season production, utility interconnection, Illinois program contracts, roof structure, and outage priorities.
IL
Decatur
Macon County
Decatur’s Midwest seasonality, roof age, snow exposure, and tree shade can influence both annual production and installation scope.
6 target ZIPsAmeren
IL
Rockford
Winnebago County
Rockford’s colder winters, snow, roof pitch, tree shade, and older housing stock can affect production, access, and electrical upgrades.
14 target ZIPsComEd
IL
Peoria
Peoria County
Peoria’s four-season climate, roof age, snow, shade, and older neighborhoods make site conditions important to both cost and output.
29 target ZIPsAmeren
IL
Bloomington
McLean County
Bloomington’s four-season weather, roof pitch, shade, snow, and neighborhood housing mix can change the design and installation budget.
8 target ZIPsAmeren
IL
Champaign
Champaign County
Champaign’s seasonal weather, roof age, shade, snow, and compact or older housing areas can affect design, access, and electrical scope.
6 target ZIPsAmeren
Next step
Compare a local guide with an address-specific estimate.
A city guide helps you ask better questions. Your roof, usage history, utility account, equipment, and contract determine the actual result.