Energy Independence
Solar + storage + smart energy, designed together.
Energy independence is a system, not a product. Sespe Power Solutions designs and installs integrated solar + Tesla Powerwall (or Enphase IQ Battery) + smart panel systems for Ventura County homes, sized from a year of SCE usage data. A typical whole-home independent system pairs 8–12 kW of solar with 27 kWh of battery for $50,000–$75,000 installed before the 30% federal tax credit.
- Solar + battery + smart panel, sized as one system
- Resilience during outages and TOU savings every day
- Designed by licensed C-10 electricians
- Single point of accountability from design to install
Energy independence isn't a single product — it's a system. We combine solar generation, battery storage, EV charging, and smart panel controls into one cohesive design that powers your home through outages and lowers your bill the rest of the year.
How we approach it
- Year of utility data analysis
- Load profile and backup priority list
- Solar + battery sizing for resilience and ROI
- Smart panel and load management integration
- Single-team install, single point of accountability
Frequently asked questions
What does 'energy independence' actually mean here?+
A system sized so you generate, store, and consume your own power for the majority of the year, with whole-home backup during outages. Most stay grid-connected for backup, but 80–95% self-sufficiency is realistic in Ventura County.
How much does a whole-home solar + battery system cost?+
$50,000–$75,000 installed before the 30% federal tax credit, depending on home size and loads. After the ITC and SGIP, net cost is typically $32,000–$50,000.
How much battery do I need to be off-grid most days?+
Most Ventura County homes need 20–30 kWh of usable battery — either two Tesla Powerwall 3 units or six Enphase IQ Battery 5P modules.
Will it run my AC during an outage?+
Yes. Powerwall 3's 11.5 kW continuous output handles a 4-ton central AC compressor without load shedding. We confirm during the load study.
Why design it as one system rather than adding a battery later?+
Inverter sizing, panel layout, and load priorities all change when battery is part of the design. Retrofitting later is possible but typically 15–25% more expensive than designing once.
Let's see what the sun can do for your home or business.
Solar, battery, EV chargers, panel upgrades, commercial work — we'll do the math, design the system, and tell you straight what makes sense. No high-pressure pitch.