Daily and overnight energy: kWh
List power and operating hours. Illustrative example: an average 3 kW load running for 8 hours uses 24 kWh. This excludes losses, reserve, degradation and weather allowance; it is not a battery recommendation.
Mirasol · Los Cabos
Off-grid solar for your East Cape home or new build.
Building in Zacatitos, Shipwrecks, La Fortuna or Vinorama? A home without utility power needs enough energy for the night and a plan for cloudy weather. Start with your lot, appliances and the months you will use the house. Check CFE availability for that lot; service varies within the East Cape.
Mirasol guide · Updated
In this guide
Your lot
Zacatitos, La Fortuna and Vinorama need a property-level power plan
A coastal address does not tell you whether a home has utility service. A September 2026 Playa Tortuga homesite listing, for example, describes solar and generator power. That is evidence for that development, not a service map for the whole East Cape.
| Area or property | Start with this check |
|---|---|
| Zacatitos and Playa Tortuga | Confirm the lot's connection status and any existing panel, inverter, battery and generator specifications. |
| Shipwrecks, La Fortuna and Nine Palms | List occupied summer nights, A/C hours, water-pump starts and the service-access route. |
| Vinorama | Check delivery access, equipment-room conditions and the plan for days of low solar production. |
| La Ribera and Los Barriles | Obtain the property's utility and community requirements. Development activity does not establish a need for full off-grid power. |
System design
Size the system around a full day at home
Panel watts are only part of the design. Work out how much energy you use each day, what runs at the same time and how long the house must operate when the panels cannot produce enough.
Simultaneous power: kW
Cooling, pumps and cooking can overlap. The inverter and batteries must support continuous demand and starting surges. Stored energy in kWh does not establish available power.
Cloudy days and recharging
Decide which appliances you can turn down when production drops, how much battery reserve to keep and how the batteries will recharge. Ask a qualified specialist whether the design needs a generator and how it would connect safely.
East Cape construction
Plan the power system before finalizing your drawings
Between Zacatitos and Vinorama, check the lot's utility service and access for deliveries and maintenance. Set aside space for panels and a protected equipment area while those decisions are still easy to change. Infrastructure varies from one property to the next.
A/C and overnight use
List the A/C models, how many units will run, which rooms will be occupied and the overnight schedule. Guests may use the home differently than you do, so explain whether it will also be a vacation rental.
Space and access
Coordinate equipment rooms, manufacturer ventilation requirements, cable distances, fixing points and service routes with the architect and installer. A roof image cannot replace site assessment.
Building sequence
Decide what powers construction and what powers the finished home
Construction tools and the finished home's overnight loads are different requirements. Ask the builder and electrical designer to plan temporary power separately. An array selected for construction equipment may not provide enough stored energy for occupied summer nights.
| Build stage | Information or decision needed |
|---|---|
| Before final roof and electrical plans | Utility status, appliance schedule, panel area, protected battery location and service access. |
| Before walls and roof finishes close | Cable and conduit routes, mounting details, waterproofing responsibilities and generator provisions if required. |
| Before move-in | Verified loads, operating limits, commissioning, low-production procedure and the service contact. |
The proposal
What an off-grid budget should include
Request equipment models, usable battery energy, power limits and the load and production assumptions. Separate equipment, electrical work, transport, mounting, taxes, commissioning and maintenance. Ask for a low-production operating plan rather than an unlimited-power promise.
Your location
Check assessment availability for your project
Mirasol focuses on Los Cabos. For East Cape and other BCS locations, share the site and work required so we can confirm whether we can assess it. The installation crew, delivery date and the lot's CFE service need separate confirmation.
Continue planning your project
Solar battery backup in Los Cabos
Understand usable energy, starting power and runtime when defining your overnight loads.
Solar panels in Los Cabos
If CFE can serve the lot, compare the scope of grid-connected solar before choosing full autonomy.
Solar panels in Cerritos, Todos Santos and Pescadero
Compare new-build solar on the Pacific side, where a property may need grid-connected savings, backup or a complete autonomous supply.
Water-pump backup in Cabo: check water and power
Include cistern and pressure-pump starting loads, and calculate water storage separately from battery runtime.
FAQ
What to clarify before quoting.
Can I inquire without a CFE bill?
Yes. Share the location, plans, equipment list, operating hours and build stage. An autonomous-system proposal needs validated loads and site conditions; the automatic bill-based rooftop estimate is not an off-grid design.
Can off-grid solar run air conditioning?
It can be designed for that goal. Check overnight energy, simultaneous demand, starting loads, usable storage and poor-weather production. Panel count alone does not guarantee overnight cooling.
How much does off-grid solar cost in Baja California Sur?
Cost depends on loads, autonomy, equipment, site work and access. Request the assumptions and exclusions in writing. A package for grid-connected panels without storage is not an equivalent comparison.
Does the BCS isolated grid mean my house is off-grid?
No. The regional electricity system and an individual property's connection are different things. A home can have CFE service within the regional grid; verify the lot's actual connection before deciding on autonomous power.
Are Cerritos and Todos Santos also off-grid solar markets?
Some properties may need autonomous power, while others have utility service and need savings or outage backup. Start with the exact lot's service status. The Cerritos, Todos Santos and Pescadero guide explains the different information required for new homes, condos and existing houses.
Can a generator replace additional solar batteries?
A generator can form part of an off-grid design, but it changes fuel, maintenance, noise and operating requirements. A specialist must size and integrate it with compatible equipment. Compare the same loads and low-production scenario when reviewing alternatives.
Sources
External sources used as context.
These references provide technical context. Your location, energy needs and project scope still need an individual assessment.
DOE: Solar and resilience
Technical principles for storage, backup and islanded operation; not Mexican permitting guidance or a design for this property.
Playa Tortuga homesite listing, MLS 26-3811
A dated, property-specific example of solar and generator infrastructure. Confirm current conditions; this is not a Mirasol project or a utility availability guarantee.
Ready to start?
Tell us where you are building and what needs power.
Share your build stage, when you will use the home and the A/C you plan to run. We will confirm whether we can assess your project before arranging a visit or quote. You can start this inquiry without a CFE bill.