The Tsukiji Fish Market in Japan, located at latitude/longitude 35.6737, 139.7806, is a decent location for solar energy production year-round. The amount of electricity that can be generated from each kilowatt (kW) of installed solar panels varies by season.
During the summer and spring seasons, you can expect to generate around 5.28 and 5.26 kilowatt-hours (kWh) per day respectively from each kW of solar panels installed; this is when the sun shines for longer hours which means more power generation potential.
In autumn and winter seasons, the daily output drops to about 3.62 kWh/day and 3.50 kWh/day respectively due to shorter daylight hours and less intense sunlight.
To maximize total yearly power production from these solar panels at this location, they should ideally be tilted at an angle of approximately 33 degrees facing southward; this helps them catch as much sunlight as possible throughout different times in the year.
However, there might be some local factors that could hinder optimal solar energy production here such as cloudy or rainy weather conditions which are quite common in Japan especially during its rainy season (June - mid July). Also heavy snowfall during winter months could cover up the panels reducing their efficiency greatly.
Preventative measures that can be taken include installing automated cleaning systems or protective coatings on your solar panels to help keep them clean from dust or snow accumulation thus ensuring better light absorption for greater energy production throughout the year regardless of seasonal changes in weather conditions.
Another measure would involve using tracking systems that adjust panel angles according to sun's position during different times in a day/year maximizing exposure to sunlight thereby increasing overall power generation capacity significantly compared with fixed installation setups even though it may come with added cost implications.
So while Tsukiji Fish Market isn't necessarily an ideal spot for generating electricity via Solar PV due largely because of its weather conditions, it's still a viable option with the right setup and maintenance measures in place.
Note: The Northern Temperate Zone extends from 35° latitude North up to 66.5° latitude.
So far, we have conducted calculations to evaluate the solar photovoltaic (PV) potential in 187 locations across Japan. This analysis provides insights into each city/location's potential for harnessing solar energy through PV installations.
Link: Solar PV potential in Japan by location
Solar output per kW of installed solar PV by season in Tsukiji Fish Market
Seasonal solar PV output for Latitude: 35.6737, Longitude: 139.7806 (Tsukiji Fish Market, Japan), based on our analysis of 8760 hourly intervals of solar and meteorological data (one whole year) retrieved for that set of coordinates/location from NASA POWER (The Prediction of Worldwide Energy Resources) API:
 
Ideally tilt fixed solar panels 33° South in Tsukiji Fish Market, Japan
To maximize your solar PV system's energy output in Tsukiji Fish Market, Japan (Lat/Long 35.6737, 139.7806) throughout the year, you should tilt your panels at an angle of 33° South for fixed panel installations.
As the Earth revolves around the Sun each year, the maximum angle of elevation of the Sun varies by +/- 23.45 degrees from its equinox elevation angle for a particular latitude. Finding the exact optimal angle to maximise solar PV production throughout the year can be challenging, but with careful consideration of historical solar energy and meteorological data for a certain location, it can be done precisely.
We use our own calculation, which incorporates NASA solar and meteorological data for the exact Lat/Long coordinates, to determine the ideal tilt angle of a solar panel that will yield maximum annual solar output. We calculate the optimal angle for each day of the year, taking into account its contribution to the yearly total PV potential at that specific location.
Seasonally adjusted solar panel tilt angles for Tsukiji Fish Market, Japan
If you can adjust the tilt angle of your solar PV panels, please refer to the seasonal tilt angles below for optimal solar energy production in Tsukiji Fish Market, Japan. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 33° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 20° South in Summer | 42° South in Autumn | 50° South in Winter | 29° South in Spring |
Our recommendations take into account more than just latitude and Earth's position in its elliptical orbit around the Sun. We also incorporate historical solar and meteorological data from NASA's Prediction of Worldwide Energy Resources (POWER) API to assign a weight to each ideal angle for each day based on its historical contribution to overall solar PV potential during a specific season.
This approach allows us to provide much more accurate recommendations than relying solely on latitude, as it considers unique weather conditions in different locations sharing the same latitude worldwide.
Calculate solar panel row spacing in Tsukiji Fish Market, Japan
We've added a feature to calculate minimum solar panel row spacing by location. Enter your panel size and orientation below to get the minimum spacing in Tsukiji Fish Market, Japan.
Our calculation method
- Solar Position:
We determine the Sun's position on the Winter solstice using the location's latitude and solar declination. - Shadow Projection:
We calculate the shadow length cast by panels using trigonometry, considering panel tilt and the Sun's elevation angle. - Minimum Spacing:
We add the shadow length to the horizontal space occupied by tilted panels.
This approach ensures maximum space efficiency while avoiding shading during critical times, as the Winter solstice represents the worst-case scenario for shadow length.
Topography for solar PV around Tsukiji Fish Market, Japan
Tsukiji Fish Market is located in Tokyo, Japan, which is a highly urbanized area. The topography around this area is generally flat with numerous buildings and infrastructure. It's not mountainous or hilly but rather a dense cityscape.
As for the second part of your question, large-scale solar PV installations typically require vast open spaces that receive ample sunlight throughout the year. In urban areas like Tokyo, suitable places might include rooftops of large buildings or warehouses, parking lots, etc., where there are fewer obstructions to sunlight.
However, it should be noted that while Japan has made significant strides in solar power generation (it's one of the world's leading countries in this regard), space constraints in cities like Tokyo can limit the potential for large-scale installations. Therefore it would be more efficient and feasible to install smaller scale solar panels across multiple locations rather than looking for a single large site.
For instance, floating solar farms on reservoirs and unused water bodies could also be an option as they have been used effectively elsewhere in Japan due to land shortage issues.
Before any installation though, detailed assessments considering factors such as sun exposure duration (solar irradiation levels), local climate conditions (like frequency of typhoons which may damage installations), building regulations among others need to be conducted.
Japan solar PV Stats as a country
Japan ranks 3rd in the world for cumulative solar PV capacity, with 74,191 total MW's of solar PV installed. This means that 8.30% of Japan's total energy as a country comes from solar PV (that's 9th in the world). Each year Japan is generating 590 Watts from solar PV per capita (Japan ranks 4th in the world for solar PV Watts generated per capita). [source]
Are there incentives for businesses to install solar in Japan?
Yes, there are several incentives for businesses wanting to install solar energy in Japan. These include the Feed-in Tariff (FIT) program, which provides a fixed price for electricity generated from renewable sources such as solar; subsidies and grants from local governments; tax credits; and loans with low interest rates. Additionally, businesses may be eligible for additional incentives depending on their location and type of installation.
Do you have more up to date information than this on incentives towards solar PV projects in Japan? Please reach out to us and help us keep this information current. Thanks!
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Author: Aaron Robinson
Publisher: profileSOLAR.com
First Published: Tuesday 28th of May 2024
Last Updated: Monday 21st of July 2025
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Compare this location to others worldwide for solar PV potential
The solar PV analyses available on our website, including this one, are offered as a free service to the global community. Our aim is to provide education and aid informed decision-making regarding solar PV installations.
However, please note that these analyses are general guidance and may not meet specific project requirements. For in-depth, tailored forecasts and analysis crucial for feasibility studies or when pursuing maximum ROI from your solar projects, feel free to contact us; we offer comprehensive consulting services expressly for this purpose.
Helping you assess viability of solar PV for your site
Calculate Your Optimal Solar Panel Tilt Angle: A Comprehensive Guide
Enhance your solar panel's performance with our in-depth guide. Determine the best tilt angle using hard data, debunk common misunderstandings, and gain insight into how your specific location affects solar energy production.




