Hanoi Solar Data
Solar Overview
Hanoi's tropical climate and an average of 1456 sun hours per year contribute to its solar potential, which is categorized as poor compared to other cities.
Geographic Impact
Hanoi, located at a latitude of 21.0285°, experiences a tropical climate characterized by high temperatures and distinct wet and dry seasons. This environment plays a significant role in the efficiency and performance of solar panels.
Rating Methodology
The solar potential rating for Hanoi is classified as poor primarily due to the limited average annual sun hours and seasonal variations in sunlight.
Understanding the Data
The data chart reflects the average annual sun hours and peak sun months, illustrating the times of the year when solar energy production is optimal.
Cost & Savings Outlook
Solar energy can help offset electricity costs over time, although potential savings will depend on various factors including initial installation costs and local electricity rates.
How It Compares
When compared to Guadalajara and Jeddah, both rated as good for solar potential, Hanoi's performance is relatively lower, indicating less favorable conditions for solar energy generation.
Installation Considerations
Given Hanoi's tropical climate, solar panels should typically be installed at a tilt angle that optimizes exposure to sunlight throughout the year. Seasonal variation in sunlight and the overall high temperatures can influence the efficiency of solar systems.
Local Incentives
Check local and national incentive programs, which vary by country and region.
Compare Solar Potential in Vietnam
Frequently Asked Questions
What is the average number of sun hours in Hanoi?
Hanoi has an average of 1456 sun hours per year.
What is the average temperature in Hanoi?
The average temperature in Hanoi is approximately 24.7°C.
During which months does Hanoi experience the most sun?
The peak sun months in Hanoi are June, July, and October.
What is the solar potential rating for Hanoi?
Hanoi has a solar potential rating classified as poor.
How does Hanoi's solar rating compare to other cities?
Compared to cities like Guadalajara and Jeddah, which have a good solar rating, Hanoi's potential for solar energy generation is relatively lower.
What climate zone is Hanoi in?
Hanoi is located in a tropical climate zone.
Solar Resource & Estimated Production
Irradiance data for Hanoi hasn't been processed yet — check back soon.
Recommended Panel Orientation
Tilt angle: 21° from horizontal
Azimuth: 180° (true South)
Standard year-round heuristic based on latitude — a professional installer can optimize further for your roof.
Monthly Daylight Hours
Jan
10.9h
Feb
11.3h
Mar
11.9h
Apr
12.5h
May
13h
Jun
13.3h
Jul
13.2h
Aug
12.7h
Sep
12.1h
Oct
11.5h
Nov
11h
Dec
10.7h
Location Map
How Hanoi Compares
| City | Sun Hours/Year | Irradiance (kWh/m²/day) | Rating |
|---|---|---|---|
| Hanoi (this city) | 1,456 | N/A | — |
| Ho Chi Minh City | 158 | N/A | Average |
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