Energy Solutions

Reliable power when the grid isn't

High energy costs and grid interruptions are a fact of life in the Caribbean. We design solar and battery systems around how your property actually uses power, then build them to fit it: grid-tied, hybrid or fully off-grid.

NABCEP Board Certified PV System Inspector NABCEP Board Certified PV System Inspector
โš™๏ธ Custom-Sized, Not Off-the-Shelf
Solar panel array installed on an Antigua rooftop, overlooking the water
Alternative Solutions site survey and energy audit in Antigua, EC$250, with Alexis Lewis

Plan Before You Spend

Antigua Site Surveys & Energy Audits

EC$250 (XCD) for a site survey and energy-audit consultation with Alexis Lewis, for homes and small businesses in Antigua.

If you are considering solar, battery storage, backup power, or energy-efficiency improvements, the first step is understanding how your property actually uses electricity.

Your consultation includes a review of your property and energy needs, solar-system planning, equipment-selection guidance and access to our technical expertise.

Already have an installer? We can work with them to help you choose a system that suits your property and goals.

What We Offer

Energy resilience for homes and small businesses

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Solar Energy

We design hybrid and grid-connected solar systems based on the property's energy use, available installation space, backup requirements, and long-term energy goals.

Important: All hybrid and grid-connected solar installations are subject to APUA's current application, approval, interconnection, and installation guidelines. Required approval must be obtained before installation begins.

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Battery Storage

Battery storage is sized and configured for the electrical loads it needs to support. We offer both indoor and outdoor-rated battery systems, depending on the property, available space, and customer preference. Outdoor-rated batteries are a practical option for customers who do not have suitable indoor space or prefer not to install batteries inside their home. Each system is designed around the customer's actual energy use, required backup time, installation conditions, and future expansion needs.

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Efficient Household Systems

Practical efficiency upgrades that lower consumption before you size a solar or battery system, so you're not overpaying for capacity you don't need.

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Energy solutions are a growing part of our product line. Contact us to discuss what's available for your property today.

Before We Size Anything

Understanding your power usage and demand

Two homes with the same size roof can need completely different systems. The difference comes down to how much energy you use, and how much power you draw at once.

Usage vs. demand: why both matter

Your electricity bill shows energy used, measured in kWh, your total consumption over the month. That number tells us roughly how large a solar array needs to be to offset your bill.

But a solar and battery system also has to handle peak demand, measured in kW, the power your property pulls the instant several things run together: an AC unit starting up, a water pump kicking in, a fridge compressor cycling on. A system sized only from your monthly bill can look adequate on paper and still fail to keep the lights on when it matters.

This is also why we recommend a short load-monitoring period before finalizing any system: it shows us the real peaks your average monthly bill can hide.

  1. 1

    Review your bills

    We look at recent months (ideally a full year) of utility bills to understand your baseline usage and how it shifts across seasons.

  2. 2

    Assess your loads

    We identify what actually draws the most power on your property, AC units, pumps, fridges, water heaters, and when it runs.

  3. 3

    Model your system

    Panel count, inverter size and battery capacity are sized to your real usage and your goal, whether that's backup-only or maximum independence.

  4. 4

    Design for your property

    Grid-tied, hybrid or fully off-grid, whichever setup fits your roof, your budget and how often the grid actually goes down in your area.

Built Around Your Property

Grid-tied or off-grid, we design to fit

There's no single "right" system. We'll help you weigh cost, independence and complexity so the setup matches how you actually want to use it.

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Grid-Tied

Panels offset your utility bill and the grid covers the rest. The lowest-cost way to cut your APUA bill, best where outages aren't the main concern.

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Hybrid (Grid + Battery)

Solar and battery storage with the grid kept as backup. Keeps essential circuits running through outages while still offsetting day-to-day usage.

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Fully Off-Grid

Solar and battery sized to run the property independently of the utility entirely. Requires the most careful load planning, and gives the most independence.

Real Installations

Systems we've built in Antigua

Installed rooftop solar panel array in Antigua
A completed rooftop array, panels laid flush and fully racked.
Close-up of solar panel mounting rail and conduit run on a metal roof
Mounting rail and conduit detail. The parts nobody sees are what determine whether a system lasts.
Battery storage cabinets installed for a hybrid solar system
Battery storage, sized and wired for the loads it actually needs to carry.
On the roof: setting and torquing down a mounting bracket by hand.
A closer look at the finished battery cabinet and disconnect wiring.
Technician wiring the top of a battery storage cabinet on site
Our technician wiring in the top of a battery cabinet.
Close-up of hands adjusting DC disconnect breaker terminals on top of a battery cabinet
Setting the DC disconnect terminals, a step that gets skipped when a system is rushed.
Finished battery storage cabinet with conduit fittings on top, mounted against an exterior wall
A finished cabinet, conduit run and all, ready to go live.
Hybrid inverter LCD screen showing live system status: battery at 100 percent, solar input, normal operation
Live system status: battery charge, solar input and grid draw, all visible at a glance.
Behind the wall: the hybrid inverter and distribution panel that tie the system together.
Working the ridge line while the mounting rails go in.
Tube of Chem Link MetaLink metal roof sealant in a caulking gun, used to seal a solar mounting bracket on a corrugated roof
Chem Link MetaLink, a high-performance metal-roof sealant, sealing a mounting-bracket penetration on the corrugated roof. It bonds directly to metal without a primer and stays flexible through the roof's daily expansion and contraction, so every point we bolt into stays watertight.

Energy Partner

Our solar and battery installations are delivered in partnership with Wadadli Solar LLC, our energy-focused sister company.

Visit Wadadli Solar โ†’

Before You Sign Anything

Understanding Your Solar Proposal

Solar installation in Antigua involves real engineering and APUA regulatory steps. This section explains, in plain language, what the different system types actually do and what a complete, technically sound proposal should include, so you can evaluate any quote with confidence, including ours.

The Three Main System Types

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Grid-Tied Solar

  • Operates alongside the utility grid.
  • Reduces how much electricity you purchase from APUA.
  • Excess production may be exported, subject to APUA's applicable rules.
  • A conventional grid-tied inverter normally shuts down during an APUA outage.
  • Batteries are not automatically included.
  • Best suited to bill reduction, not backup power.
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Hybrid Solar and Battery

  • A hybrid inverter manages solar panels, batteries and the grid together.
  • Can be designed to keep selected circuits running during outages.
  • Batteries may be installed now, or the system built for compatible future expansion.
  • Battery compatibility, usable capacity, output power and supported loads must all be verified.
  • A hybrid inverter alone does not mean the whole property stays powered. The backed-up circuits and available power must be defined.
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Off-Grid Solar

  • Operates without depending on the utility grid at all.
  • Requires enough solar generation, battery storage and inverter capacity to cover real usage.
  • Design must account for nighttime use, cloudy periods, surge loads and seasonal production.
  • Load management or generator support may still be necessary.
  • Requires a detailed load assessment. Should not be sized from the electricity bill alone.

A conventional grid-tied inverter can be the right choice for a customer focused on the lowest-cost bill reduction who accepts having no solar power during an outage. Customers expecting backup, planning to add batteries later, or working toward long-term energy independence should generally start with hybrid-capable architecture from the beginning, even if batteries are added in a later phase.

Plan Before You Buy

Start With Your Goal

The right system starts with your objective, not with a spec sheet. Tell us what you're trying to accomplish, and the inverter, panel and battery configuration gets designed around that, not the other way around.

  • Reduce my APUA bill
  • Keep essential loads operating during outages
  • Add batteries later
  • Operate mostly independently from APUA
  • Operate completely off-grid
  • Support business-critical loads
  • Support pumps, refrigeration, internet, lighting or medical equipment
Request an Energy Assessment

The Inverter and Solar Array Must Be Properly Matched

Every solar system has two capacity numbers that have to work together: how much power the panels can produce, and how much power the inverter can accept and convert. When these are mismatched, whether the inverter is undersized for the array or the string voltage falls outside the inverter's operating range, the system can underperform, trip nuisance faults, or run outside its warranty terms. A technically complete proposal shows the sizing calculations, not just an equipment list.

  • Panel capacity is stated in kilowatts DC (kW DC).
  • Inverter output is stated in kilowatts AC (kW AC).
  • A larger inverter is not automatically a better inverter.
  • A smaller inverter is not automatically the wrong choice.
  • The installer should verify the manufacturer's recommended PV input range for that inverter.
  • String voltage must stay within the inverter's operating and MPPT voltage ranges.
  • Temperature affects solar panel voltage, and this must be accounted for in the string design.
  • The number of panels per string must be calculated, not estimated.
  • Planned future expansion should be documented in the proposal, not just discussed verbally.
  • The inverter must be compatible with the property's electrical service and APUA's requirements.

APUA Approval Is Required

Solar installations connected to the APUA grid are subject to APUA application, approval, interconnection, inspection and permission-to-operate requirements.

  1. 1

    Customer consultation and site assessment

  2. 2

    System design

  3. 3

    APUA application submission

  4. 4

    APUA review and approval

  5. 5

    Interconnection agreement and applicable fees

  6. 6

    Installation

  7. 7

    APUA inspection

  8. 8

    Permission to operate

Permanent grid-connected installation should not begin before the required APUA approval is in place.

Alternative Solutions helps prepare and submit the required documentation, but APUA controls its own review timeframes, fees and approval decisions. View APUA's official renewable energy information โ†’

Know What You're Signing

What a Complete Solar Proposal Should Tell You

A technically complete proposal should answer every item below. Tap a category to expand it.

Customer Objectives
  • Bill reduction, backup or off-grid goal
  • Essential loads requiring backup
  • Expected future battery or solar expansion
  • Current and anticipated electricity use
System Design
  • Exact panel manufacturer and model
  • Exact inverter manufacturer and model
  • Inverter type: grid-tied, hybrid or off-grid
  • Number and wattage of panels
  • Total solar array capacity
  • String configuration
  • Battery model, usable capacity and warranty, if included
  • Expected backup loads and estimated runtime
  • Panel layout, orientation and tilt
  • Shading assessment
  • Monthly and annual production estimate
  • Manufacturer string-sizing confirmation
  • Single-line electrical diagram
Electrical Scope
  • AC and DC conductor specifications
  • Breakers and overcurrent protection
  • AC and DC disconnects
  • Surge protection
  • Grounding and bonding
  • Required labels
  • Monitoring equipment
  • Internet or communications requirements
  • System commissioning and testing
Roof and Racking
  • Roof condition
  • Racking manufacturer and model
  • Attachment method
  • Waterproofing method
  • Wind and hurricane design
  • Structural responsibility
  • Roof setbacks
  • Roof-leak warranty
  • Responsibility for removing panels during future roof work
APUA and Regulatory Responsibilities
  • Who prepares and submits the application
  • Application and meter fees
  • Required drawings and technical documents
  • Inspection responsibilities
  • Responsibility for correcting failed inspections
  • Permission-to-operate process
  • What happens to the deposit if approval is denied or the design must change
Warranty and Service
  • Panel product warranty
  • Panel performance warranty
  • Inverter warranty
  • Battery warranty, if applicable
  • Racking warranty
  • Installation workmanship warranty
  • Roof-penetration warranty
  • Warranty registration
  • Local response time
  • Monitoring support
  • Labor coverage for equipment replacement
  • Shipping, customs and reinstallation costs for warranty claims
  • Responsibility if equipment becomes unavailable or discontinued
Commercial Terms
  • Complete installed price
  • Taxes and exemptions
  • APUA and government fees
  • Delivery and transportation
  • Exclusions
  • Deposit and payment schedule
  • Change-order process
  • Project schedule
  • Delay provisions
  • Cancellation and refund terms
  • Final acceptance and handover requirements

How to Read a Solar Savings Estimate

A savings estimate is only as good as what it discloses. Ask what's behind the number before you rely on it.

Annual solar production greater than annual electricity consumption does not automatically eliminate your electricity bill. Timing matters: solar is produced during daylight hours, while a meaningful share of household or business electricity use often happens at night.

This page intentionally does not list a fixed savings percentage, a guaranteed payback period, or a specific APUA export-credit rate. Every property's usage, tariff and export terms are different, and any estimate should be calculated from your actual account, not assumed from a general figure.

  • Historical electricity consumption
  • Current tariff assumptions
  • Fuel-charge assumptions
  • Daytime self-consumption
  • Expected exports
  • Export-credit assumptions
  • Monthly solar production
  • Shading and system losses
  • Panel degradation
  • Maintenance and possible equipment replacement
  • Remaining utility charges
  • Whether the calculation assumes future electricity-price increases

Before You Pay a Deposit

Questions to Ask Before Paying a Deposit

  1. Will this system provide electricity during an APUA outage?

    Only if it is designed to. A conventional grid-tied inverter shuts down during an outage. A hybrid or off-grid system must be specifically configured with batteries and defined backup circuits to keep power on.

  2. Is the inverter hybrid or conventional grid-tied?

    This determines whether the system can support batteries and backup power at all. The exact inverter type and model should be stated explicitly in the proposal.

  3. Are batteries included in the price?

    Some proposals quote a hybrid-ready inverter without batteries. Confirm whether batteries are included now, and if not, what it costs to add them later.

  4. Which circuits will be backed up during an outage?

    A hybrid system rarely backs up an entire property. The proposal should list exactly which circuits or loads are connected to backup power.

  5. How long will the batteries realistically support those loads?

    Runtime depends on usable battery capacity and the loads actually connected to it. Ask for an estimated runtime in hours, not just a battery capacity rating.

  6. Can compatible batteries be added later?

    If batteries are not included initially, confirm the inverter is compatible with a specific battery model and configuration for future expansion, not just that batteries can be added in general.

  7. Has the system been sized using my actual electrical loads?

    A system sized only from an average monthly bill can miss real peak demand. Ask whether your actual loads, not just your bill, were used to size the system.

  8. Has the inverter and solar string design been verified against the manufacturer's specifications?

    The installer should confirm the array falls within the inverter's recommended PV range and that string voltage stays within its operating and MPPT ranges.

  9. Has the APUA application been approved?

    Permanent grid-connected installation should not begin before APUA approval is granted. Ask for the current status of the application.

  10. Are all taxes, fees and installation materials included in the price?

    Get a complete, itemized price that includes taxes, APUA fees and all installation materials, not just the headline equipment cost.

  11. Who handles warranty service locally?

    Ask who is responsible for local warranty service, and how shipping, customs or reinstallation costs are handled if equipment needs to be replaced.

  12. What happens if APUA rejects or requires changes to the design?

    Ask what happens to your deposit and the project timeline if APUA's review requires the design to change.

System performance depends on site conditions, equipment, customer loads, weather and utility rules. Production and savings estimates are not guarantees unless explicitly stated in a signed contract. APUA approval is required for grid-connected installations. Backup duration depends on battery capacity, battery condition and connected loads. A site assessment is required before a final design and price can be issued.

Curious what a system built for your property would look like?

Send us your recent electricity bills and tell us about your goals: lowering your bill, riding out outages, or coming off the grid entirely. We'll help you size it right.