Lower Your Energy Bills with Solar in San Marcos
Your system. Your roof. Custom-designed for your home. 25+ years experience. 15,000+ installations. 25-year workmanship warranty.
WHY SOLARTECH
Why Choose SolarTech for Your Solar Needs
Every San Marcos solar installation is custom-designed for your home, your roof, and your energy needs.
SDG&E Rates Keep Rising - Solar Locks In Your Energy Cost
SDG&E charges San Marcos homeowners an average of over 41 cents per kWh – more than 144% above the national average of $0.17/kWh, and the highest average residential rate of any major California utility. Under SDG&E’s mandatory EVTOU5 plan for new solar customers, rates hit $0.799/kWh during the summer peak window from 4-9pm on weekdays. SDG&E rates have climbed at approximately 6% per year – and every increase raises the value of every kilowatt-hour your solar system generates.
Solar + Battery: Built for SDG&E's Net Billing Tariff
SDG&E switched to NEM 3.0 (Net Billing Tariff) in April 2023. Midday solar export earns approximately $0.05-$0.08/kWh – while you pay $0.799/kWh during the summer peak. That’s roughly a 10x gap. The strategy: pair solar with battery storage, store midday production, discharge during the 4-9pm peak window. San Marcos solar customers also benefit from CEA’s Solar Impact program, which adds a $0.01/kWh export premium on top of the base NEM 3.0 rate. SolarTech installs battery storage systems from Tesla and Enphase, sized for this rate structure.
25+ Years of Experience in Southern California
Over 15,000 solar installations across California and Arizona since 2001. 4.7-star Google rating with 800+ reviews, and 4.5-star Yelp rating with 400+ reviews. SolarTech has been installing solar across San Diego County since 2001 – every SDG&E rate structure, every permitting cycle, every roof type from San Marcos to Chula Vista. Your installation is backed by a 25-year workmanship warranty.
Backup Power for San Marcos Homes
San Marcos sits in SDG&E’s High Fire Threat District Tier 2. Public Safety Power Shutoffs are a recurring reality – SDG&E implemented a PSPS event affecting San Marcos in November 2024, and the 2007 North County fires remain a defining reminder of the region’s fire exposure. A Tesla Powerwall or Enphase IQ Battery paired with your solar system keeps essential loads running through any outage, while cutting your SDG&E bill every day. Learn how to protect your home with solar battery backup.
Experience & Expertise
Leading Solar Experts
- Designing and building solar systems since 2001
- Free consultations tailored to your home and energy needs
- SDG&E territory specialists - we handle Solar Billing Plan (NEM 3.0) enrollment and interconnection
- Battery storage expertise for NEM 3.0 self-consumption and backup power
- $0 down financing, lease, PPA, and cash options available
- 25-year workmanship warranty for solar energy systems
- Tesla Powerwall Certified Installer, Maxeon Preferred Partner, Enphase Preferred Partner
- CSLB licensed, bonded, and insured
- Serving Carlsbad, Oceanside, Vista, San Marcos, Encinitas, and all of North San Diego County
Solar Incentives
San Marcos Solar Incentives You Qualify For
San Marcos homeowners have access to California’s core solar programs plus a local program unique to CEA territory. With SDG&E’s average rate over 41 cents per kWh and $0.799/kWh during summer peak, the financial case for solar in San Marcos is one of the strongest in the country.
California Property Tax Exclusion
Your solar installation is excluded from property tax reassessment. A $20,000 system adds $0 to your annual property tax bill. This exclusion expires January 1, 2027 – systems installed before that date lock in the benefit for the life of the equipment. For San Marcos homeowners with higher-value North County properties, this protection is meaningful: a $25,000 solar-plus-battery system adds nothing to your assessed value.
CEA Solar Plus Program
The Clean Energy Alliance Solar Plus program offers no-cost solar and battery installation for eligible San Marcos homeowners through the CEA. SolarTech is a CEA Certified Solar Partner – meaning we can enroll eligible customers directly into the program. Eligibility criteria apply; contact us to find out if your household qualifies. For eligible homeowners, Solar Plus is the most financially significant solar program available in San Marcos today.
NEM 3.0 Battery Strategy
Under SDG&E’s Solar Billing Plan, midday solar export earns $0.05-$0.08/kWh, while you pay $0.799/kWh during the 4-9pm summer peak. CEA’s Solar Impact program adds a $0.01/kWh export premium on top. The strategy is pairing solar with battery storage: capture midday production, discharge during the evening peak, and understand NEM 3.0 to maximize self-consumption. A California court upheld NEM 3.0 in March 2026 – this is the permanent structure to plan around.
How We Work
Our Solar Installation Process
01
Free Consultation
We evaluate your San Marcos home’s energy needs, roof condition, and sun exposure. You get a detailed proposal with system size, projected production, and estimated savings based on your actual SDG&E bills and usage history. No obligation, no pressure.
02
Custom System Design
Our engineers design a system for your specific home and energy profile. For San Marcos homeowners on SDG&E’s EVTOU5 plan, we factor in the 4-9pm peak window and size battery storage to maximize self-consumption during the most expensive hours. Each design accounts for your roof orientation, San Marcos’s inland climate, and the PSPS risk profile for your neighborhood.
03
Permitting & Approvals
San Marcos uses SolarAPP+ automated permitting – qualifying residential solar systems receive instant permit approval through the contractor portal. This makes San Marcos one of the fastest-permitting cities in North San Diego County. We handle all documentation and file your SDG&E Solar Billing Plan interconnection application simultaneously.
04
Professional Installation
Our licensed technicians complete your installation, typically in 1-3 days, with minimal disruption to your routine. Every system uses Tier-1 panels backed by 25+ year manufacturer warranties, professionally mounted with code-compliant racking and wiring.
05
Inspection & Activation
After passing city inspection, we coordinate SDG&E’s interconnection approval and Permission to Operate. Total timeline from contract to activation typically runs 2-4 months, with SDG&E interconnection review being the primary timing factor. Once your system is live, it starts generating and reducing your SDG&E bill immediately.
our equipment
Quality Solar Panel Options for San Marcos Properties
Premium Solar Panels
High-efficiency panels from Maxeon, REC, and Q CELLS – selected for San Marcos’s inland North County climate and production profile. San Marcos gets 5.8 peak sun hours per day and 265+ sunny days per year. The inland location means less marine layer interference than coastal communities – and warmer summer temperatures drive higher air conditioning loads, making the 4-9pm peak window especially valuable to offset with battery storage. A typical 7 kW system in San Marcos costs $15,435 before incentives; an 8 kW system runs $17,861; a 10 kW system runs $22,050.
Battery Storage
Recommended for every San Marcos homeowner under SDG&E’s Net Billing Tariff – and essential for any homeowner in an HFTD Tier 2 neighborhood. Store midday solar production and discharge it during the 4-9pm peak window, avoiding SDG&E’s most expensive rates. A 10 kWh battery adds $10,309 to your project before incentives; a 13 kWh system runs $13,402 installed. For CEA Solar Plus-eligible homeowners, battery storage may be included at no cost.
Get Your Free Solar Quote Today
Join over 15,000 homeowners who chose SolarTech. Custom solar installations designed for your San Marcos home, backed by our 25-year workmanship warranty.
GET A SAVINGS ESTIMATE
See How Much Solar Could Save You
Find out what solar can do for your San Marcos home. Calculate your potential savings based on your actual roof and SDG&E energy usage – no home visit required.
Frequently Asked Solar Questions
Contact SolarTech Support
Phone
(619) 743 9193
sales@solartechonline.com
How much does solar installation cost in San Marcos, CA?
A typical 7 kW solar system in San Marcos costs $15,435 before incentives; an 8 kW system runs $17,861 and a 10 kW system runs $22,050, based on current San Diego County market data. CEA Solar Plus-eligible homeowners may qualify for no-cost solar and battery installation through the Clean Energy Alliance.
How does NEM 3.0 affect San Marcos homeowners with solar?
Under SDG&E’s Solar Billing Plan (active since April 2023), midday solar export earns approximately $0.05-$0.08/kWh – far below the $0.799/kWh you pay during the summer 4-9pm peak. A battery system closes that gap by storing midday solar and discharging it during SDG&E’s most expensive hours.
What solar incentives are available in San Marcos in 2026?
San Marcos homeowners can access California’s property tax exclusion (solar adds nothing to your assessed value, but this benefit expires January 1, 2027) and the CEA Solar Plus no-cost solar program for eligible households. Lease or PPA financing passes Section 48E installer savings through lower monthly payments.
How many solar panels does a San Marcos home need?
San Marcos averages 5.8 peak sun hours per day and 265+ sunny days annually, with warmer inland temperatures driving higher summer AC loads than coastal communities. A typical home using 800-1,000 kWh per month at SDG&E’s 41-cent average rate needs a 7-9 kW system, or roughly 18-24 panels.
How long does solar installation take in San Marcos, CA?
Most San Marcos installations take 1-3 days for the physical work; the city processes qualifying permits instantly through SolarAPP+ automated permitting. Total timeline from contract to SDG&E Permission to Operate typically runs 2-4 months, with interconnection review being the primary timing factor.