Solar Energy Potential in Tokyo, Japan
Solar Overview
Tokyo experiences an average of 2032 sun hours annually, alongside a typical electricity price of $0.247/kWh, making the city a viable candidate for solar energy projects. With its Mediterranean climate and an average solar potential rating, residents can benefit from harnessing solar power effectively.
Geographic Impact
Located at a latitude of 35.6762°, Tokyo benefits from an ample amount of sunlight, receiving 2032 hours each year. This volume of sunshine contributes to its average solar potential rating, suggesting the infrastructure for solar energy is present, though performance may vary depending on specific conditions and installation choices.
Rating Methodology
The average solar potential rating reflects Tokyo's ability to generate solar energy adequately. While not as high-ranked as some cities, the combination of plentiful annual sun hours and a stable climate supports reliable solar installations.
Understanding the Data
The chart illustrates annual sun hour distribution across Tokyo. Notable peak sun months are January, December, and August, indicating favorable times for solar generation. This peak suggests that solar panels can be particularly effective during these months, providing potential energy savings during the hotter and sunnier periods.
Cost & Savings Outlook
With a typical electricity price of $0.247/kWh, solar energy can offset a meaningful share of electricity costs in Tokyo, creating opportunities for savings on monthly utility bills through reduced reliance on grid power.
How It Compares
Compared to Nagoya and Osaka, which both have an average solar potential rating like Tokyo, the advantages of solar energy accessibility remain consistent. Each city shares similar climatic conditions, making solar installations comparably effective within this context.
Installation Considerations
At Tokyo's latitude, the optimal tilt angle for solar panels is typically around 30° to 35°. Consideration of seasonal sunlight variations is also important; users may benefit from adjustable mounts for enhanced performance during peak months. It's important to assess roof space and shading from nearby structures or trees which may impact energy capture.
Local Incentives
Residents should check local and national incentive programs, which vary by country and region, to maximize the financial benefits of solar energy.
Compare Solar Potential in Japan
Tokyo experiences moderate seasonal variation in sun exposure. The solar energy output can fluctuate, especially in winter months when sun hours may decline. However, the peak months provide ample opportunity for energy generation.
The average annual temperature of 17.24°C in Tokyo suggests that solar panels may operate efficiently year-round. Temperatures in this range are typically conducive to optimal solar panel performance, balancing energy production without excessive heat-related inefficiencies.
Frequently Asked Questions
How many sun hours does Tokyo receive annually?
Tokyo receives an average of 2032 sun hours each year.
What is the average temperature in Tokyo?
The average temperature in Tokyo is approximately 17.24°C.
What is the solar potential rating for Tokyo?
Tokyo has an average solar potential rating, indicating a moderate capacity for solar energy generation.
What are the peak sun months in Tokyo?
The peak sun months in Tokyo are January, December, and August.
What is the typical electricity price in Tokyo?
The typical electricity price in Tokyo is $0.247 per kWh.
What tilt angle is recommended for solar panels in Tokyo?
In Tokyo, the optimal tilt angle for solar panels is generally around 30° to 35°.
Solar Resource & Estimated Production
Irradiance data for Tokyo hasn't been processed yet — check back soon.
Recommended Panel Orientation
Tilt angle: 36° 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
9.8h
Feb
10.7h
Mar
11.7h
Apr
12.9h
May
13.9h
Jun
14.4h
Jul
14.2h
Aug
13.4h
Sep
12.2h
Oct
11.1h
Nov
10.1h
Dec
9.6h
Location Map
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