Solar Energy in Aldrich Garden
Aldrich Garden is located at 22.3°N, 114.2°E in Hong Kong SAR China. Here's what solar energy looks like for homeowners in this area.
Annual Irradiance
1,380
kWh/m²
Peak Sun Hours
3.3
hrs/day
3.5 kWp Output
4,155
kWh/year
Solar Score
76
/ 100
What does this mean for your roof?
Aldrich Garden receives approximately 1,380 kWh/m² of solar irradiance per year, which translates to 3.3 peak sun hours per day. This is excellent for residential solar energy production.
With a solar score of 76/100, Aldrich Garden ranks #207 of 265 cities in Hong Kong SAR China for solar potential in our atlas.
A typical 3.5 kWp residential solar system (8 panels) in Aldrich Garden would produce approximately 4,155 kWh per year, sized for the average household in Hong Kong SAR China.
The best months for solar production in Aldrich Garden are May – August, while the lowest production occurs during November – January. Being in the northern hemisphere, south-facing roofs capture the most annual sunlight.
Estimated savings in Aldrich Garden
System Cost
HK$43,700
3.5 kWp, before incentives
Annual Savings
~HK$3,710
At HK$1.44/kWh
Payback Period
~12 years
Before local incentives
25-Year Net Result
~HK$74,300
Savings minus system cost
These are approximate figures based on a standardized household consumption of 5,000 kWh/year and an estimated electricity rate of HK$1.44/kWh in Hong Kong SAR China. Local incentives may reduce the upfront cost — check current subsidy, tax-credit, or VAT programs in Hong Kong SAR China, as these can meaningfully shorten the payback period.
Figures are estimates based on typical system assumptions and the latest available electricity-price and billing data for Hong Kong SAR China. Actual costs, tariffs, net-metering rules, and incentives vary by utility and change over time — confirm with a local installer or energy authority before making decisions.
How solar billing works in Hong Kong SAR China
Exports and imports are priced separately, usually at different rates.
In Hong Kong SAR China, rooftop solar appears to fall under a net-billing-style approach, where the energy you export and the energy you import are typically valued separately rather than simply cancelling out. Exports are often credited at a rate that may be lower than the retail price you pay for imported power, which generally rewards using your own generation as it is produced. The precise export and import prices vary by region and utility and change over time, so they should be confirmed locally.
Get your exact numbers
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Solar tips for Aldrich Garden homeowners
Face panels south
In the northern hemisphere, south-facing panels capture the most annual sunlight. East-west split systems also work well.
Optimal tilt angle
For Aldrich Garden, the energy-optimal panel tilt is about 18° from horizontal.
Size your system right
For the average household in Hong Kong SAR China, a 3.5 kWp system (8 panels) covers most electricity needs. Use our calculator for a personalized estimate.
Check local incentives
Local incentives may reduce the upfront cost of residential solar — check current subsidy, tax-credit, and VAT programs with your energy authority in Hong Kong SAR China.
Gear to prepare for solar
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Solar in other Hong Kong SAR China cities
Frequently asked questions about solar in Aldrich Garden
How much do solar panels cost in Aldrich Garden?
A typical 3.5 kWp residential solar system in Aldrich Garden, Hong Kong SAR China costs approximately HK$43,700 before incentives — this is an estimate based on typical regional pricing. Local incentives such as subsidies, tax credits, or VAT exemptions may reduce the upfront cost; check current programs in Hong Kong SAR China.
How are solar exports valued under net billing in Hong Kong SAR China?
Under a net-billing-style scheme, exports from your system in Hong Kong SAR China are typically bought at one rate while the electricity you import is charged at another, and the two are usually not the same. Because the export credit may be lower than the retail import price, consuming your own solar power directly tends to be the most valuable option. Actual rates vary by region and utility and can change, so confirm the current figures with a local installer or energy authority.
How much electricity do solar panels produce in Aldrich Garden?
A 3.5 kWp solar system in Aldrich Garden produces approximately 4,155 kWh per year, based on 3.3 peak sun hours per day and 1,380 kWh/m² annual irradiance.
What is the solar panel payback period in Aldrich Garden?
Based on Hong Kong SAR China's electricity rate of HK$1.44/kWh, a 3.5 kWp system in Aldrich Garden pays for itself in approximately 12 years before incentives. After that, the electricity it generates is essentially free for the remaining panel lifespan of 25+ years.
Which direction should solar panels face in Aldrich Garden?
In Aldrich Garden, panels should ideally face south since it's in the northern hemisphere. The optimal tilt angle is about 18° from horizontal.
How many solar panels do I need for my home in Aldrich Garden?
A typical household in Hong Kong SAR China uses the equivalent of a 3.5 kWp system (8 panels). With 3.3 peak sun hours per day in Aldrich Garden, this covers most electricity needs. Use our calculator for a personalized estimate.