Question 1

How often should I service my AC in Southern California?

Accepted Answer

We recommend a professional tune-up once a year, ideally in spring before the cooling season. Regular maintenance keeps efficiency high, lowers energy bills, and helps your system last longer — and it's included in our maintenance plans.

Question 2

Should I repair or replace my air conditioner?

Accepted Answer

If your system is over 10–15 years old, needs frequent repairs, or uses outdated R-22 refrigerant, replacement usually pays off in lower energy bills. Our technicians give you an honest assessment and upfront pricing — never a hard sell.

Question 3

Are ductless mini-splits a good fit for San Diego homes?

Accepted Answer

Yes. Ductless mini-splits are ideal for additions, older homes without ductwork, and zoned comfort. They're highly efficient heat pumps that both cool and heat, pairing perfectly with solar to run on clean energy.

Question 4

How much can solar save me on my SDG&E bill in San Diego County?

Accepted Answer

Most San Diego homeowners offset 70–100% of their electricity use with a properly sized system. Your exact savings depend on your roof, shading, and usage — we provide a free, no-pressure estimate with a clear payback timeline before you commit.

Question 5

Do I still need a battery if I have solar?

Accepted Answer

Under California's NEM 3.0 rules, pairing solar with battery storage (such as Enphase or Tesla Powerwall) dramatically improves your savings and keeps the lights on during outages. We design solar-plus-storage systems that maximize self-consumption.

Question 6

What happens to my solar system during a power outage?

Accepted Answer

Solar alone shuts off during a grid outage for safety. With battery backup, your essential circuits — or your whole home — keep running. We size battery backup to your priorities, from a few critical loads to full-home resilience.

Question 7

How long do solar panels and batteries last?

Accepted Answer

Quality panels carry 25-year performance warranties and routinely last longer. Home batteries are typically warrantied for 10 years. We install equipment from trusted manufacturers like Enphase and Tesla, and offer maintenance plans to protect your investment.

Question 8

Can you install a Tesla or universal EV charger at my home?

Accepted Answer

Absolutely. As a full-service energy company, we install Tesla Wall Connectors and universal Level 2 EV chargers, handle any required panel upgrades, and pull all permits — so your charger is fast, safe, and code-compliant.

Question 9

Do I need an electrical panel upgrade for an EV charger or solar?

Accepted Answer

Sometimes. Older homes may need a panel upgrade to support a fast charger, battery, or large solar system. Our licensed electricians evaluate your panel during the free estimate and include any needed work in one transparent quote.

Question 10

What areas do you serve?

Accepted Answer

We're based in Poway and proudly serve homeowners across San Diego County — including San Diego, Rancho Bernardo, Escondido, Carlsbad, Encinitas, La Jolla, Chula Vista, El Cajon, and many more. Don't see your town? Just give us a call.

Question 11

Are you licensed and insured?

Accepted Answer

Yes. Hans Energy Systems is fully licensed (CA LIC# 967367) and insured, with a NATE-certified team and 20+ years serving San Diego families. We're a family-owned company built on quality craftsmanship and sustainability.

Question 12

Do you offer financing?

Accepted Answer

We do. Flexible financing makes HVAC, solar, batteries, and EV charging affordable with low or no money down — many homeowners start saving from day one. Ask about current options when you request your free estimate.

Question 13

How do I get started?

Accepted Answer

Call (619) 654-0055 or request your free estimate online. We'll schedule a visit, assess your home and energy goals, and give you a clear, no-pressure plan and price.

Your clean-energy questions, answered.

Air Conditioning & Heating

Solar & Battery Storage

EV Charging & Electrical

Working With Hans Energy Systems