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Based on: kWh/day · kW solar · kWh battery · typical tariffs

Solar & Battery Installation Iloilo Local Installers & Quotes

Solar energy is a smart investment for homeowners in Iloilo. The city receives excellent sunshine throughout the year, and with typical households consuming around 7 kWh daily, a well-sized system can offset a significant portion of your electricity costs.

Solar Design Iloilo


Energy Usage

To choose the right solar system in Iloilo, start by understanding your daily electricity consumption. Whilst typical Iloilo households consume 7 kWh daily, homes with good insulation and modern appliances often use far less energy.

Simple changes like sealing draughts, upgrading to LED lighting, and setting hot water timers often cost far less than extra solar panels and deliver immediate bill savings.

Typical energy usage per person per day in Iloilo:

Low (Efficient)
~4 kWh
Medium (average)
~6 kWh
High (intensive)
~9+ kWh

Note: Actual usage varies depending on property size, building efficiency, climate, and appliances.

5 kWh 100 kWh
/kWh
/kWh
%

lightbulb Note: These are simplified estimates. For detailed tariff inputs and advanced calculations, use the full Photonik app.


Solar System Sizing

A 1.8kW solar system would typically cover your average daily electricity consumption. Optimal sizing ranges from 2.8kW to 3.7kW to accommodate daily and seasonal generation variations.

While December is the weakest month for solar in Iloilo, September more than makes up for it — and a battery can help bridge the gap between seasonal highs and lows.

1 kW 20 kW

lightbulb

A 4 kW system in Iloilo can generate approximately 6709.0 kWh annually based on local sun conditions.

Photonik — free professional solar design tool

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Solar & Energy Savings


Calculate Heat Pump & EV Savings

Electrify your home by replacing gas heating, petrol vehicles, and other fossil fuel appliances with electric alternatives powered by clean solar energy. This delivers significant additional financial savings and substantial carbon emission reductions. Our calculator helps you compare costs and model the financial impact of switching to electric appliances and vehicles.

How Solar Reduces Your Electricity Bills

The calculations below show how your electricity bills change with solar. Your Old Bill of - per month (- annually) is calculated from your total energy consumption multiplied by the grid electricity rate. Your New Bill of - per month (- annually) accounts for solar generation, the percentage you use directly (self-consumption), remaining grid consumption, and feed-in credits for excess energy exported to the grid. This results in monthly savings of - (- annually).

Join the Discussion

Getting the right solar setup depends on your location, roof, and energy use. Real answers from people who've been through it -- homeowners and local installers -- are often more useful than generic advice. Hit a button below to start a post -- it opens pre-filled, just add your details.

Ask the community

Get advice from locals who've been through it.

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Battery Storage Iloilo


Solar Battery Sizing

A solar-only system in Iloilo covers about 50% of your energy needs during daylight hours, but without a battery the 50% you use at night still comes from the grid. The jump from 50% to 99% self-sufficiency with a 10 kWh battery is most noticeable on your evening electricity bills, when rates are often highest.

For accurate battery savings and ROI calculations, use the full Photonik design tool.

0 kWh 30 kWh

lightbulb A 0kWh battery will make you about 0% self sufficient.

The sweet spot for most households is 5 – 13 kWh — larger batteries add independence but with diminishing payback, especially where feed-in tariffs are low.

Energy Self Sufficiency Calculator*

*Note: This calculator provides simplified battery self-sufficiency estimates. For accurate per-hour simulations that account for solar generation patterns, consumption timing, battery charging/discharging cycles, and efficiency losses across all seasons, use the full Photonik design tool.

Panel Placement Tool Iloilo


This is a simple panel placement tool that lets you quickly estimate panel count for a single roof area. Try Photonik for advanced features:

  • Multiple panel groups
  • Custom roof angles
  • Panel orientation
  • Shade loss calculations
  • Panel selection (1000+ models)
  • Full integration with our design tool

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Solar & Battery System Cost Iloilo


Understanding Solar & Battery System Costs

A 2.8 kW solar system in Iloilo is priced at approximately ₱157,639, whilst adding 10 kWh of battery storage increases the total investment to around ₱486,817. Payback periods for solar-only installations average approximately 6.4 years, whilst battery storage extends payback but significantly improves energy independence.

Try adjusting the system size and battery sliders above to see how different configurations affect both upfront cost and long-term savings for your Iloilo home.