Solar PV Analysis of Tajiri, Japan
Tajiri, Fukuoka, Japan, situated in the Northern Sub Tropics, has a pretty good potential for generating energy through solar panels all year round. The amount of electricity that can be produced from each kilowatt (kW) of installed solar varies with the seasons:
- In summer, you can expect about 5.37 kilowatt-hours (kWh) per day
- In autumn, it's around 4.03 kWh/day
- Winter drops to about 3.01 kWh/day
- Spring sees an increase to roughly 5.17 kWh/day
This means that summer and spring are the ideal times for solar energy production at this location because these seasons have longer daylight hours and higher sun intensity.
For fixed panel installations in Tajiri, Fukuoka, tilting the panels towards south at an angle of 30 degrees is best to maximize total yearly production from your solar system.
However, there might be certain local factors that could affect your ability to generate power with your solar panels:
1. Weather: Periods of heavy rainfall or frequent cloud cover can reduce sunlight exposure and thus decrease output.
2. Pollution: High levels of air pollution could potentially block sunlight.
3. Physical Obstructions: Buildings or large trees may cast shadows on your panels during parts of the day.
To ensure greater energy production despite these challenges:
1. Regular Cleaning: Keep your panels clean by regularly removing dust or debris which might obstruct sunlight.
2. Optimal Placement: Ensure there are no obstructions casting shadows on your panels throughout the day.
3. Use Efficient Panels: Choose high-efficiency PV modules which perform better under less-than-optimal conditions like low light or high temperatures.
Overall though, Tajiri's location makes it a promising place for harnessing solar power effectively throughout most parts of the year!
Note: The Northern Sub Tropics extend from 23.5° latitude North up to 35° 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 Tajiri
Seasonal solar PV output for Latitude: 33.5812, Longitude: 130.2352 (Tajiri, 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 30° South in Tajiri, Japan
To maximize your solar PV system's energy output in Tajiri, Japan (Lat/Long 33.5812, 130.2352) throughout the year, you should tilt your panels at an angle of 30° 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 Tajiri, 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 Tajiri, Japan. As mentioned earlier, for fixed-panel solar PV installations, it is optimal to maintain a 30° South tilt angle throughout the year.
| Overall Best Summer Angle | Overall Best Autumn Angle | Overall Best Winter Angle | Overall Best Spring Angle |
|---|---|---|---|
| 17° South in Summer | 39° South in Autumn | 48° South in Winter | 27° 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 Tajiri, 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 Tajiri, 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 Tajiri, Japan
Tajiri, Japan is situated in the Fukuoka Prefecture on Kyushu Island. The topography around Tajiri is generally flat to gently rolling hills with some mountainous areas further away. It's located near the coast which provides a moderate climate suitable for solar PV installations.
The most suitable areas for large-scale solar PV installations would be the flatter regions where there are fewer obstructions to sunlight such as tall buildings or dense forests. These may include agricultural fields or industrial zones that are not currently in use.
However, it's important to note that suitability also depends on other factors like local regulations and policies, proximity to power grids, and potential environmental impacts. Therefore, a comprehensive feasibility study should be conducted before deciding on a specific location for large-scale solar PV projects.
For instance, coastal areas might have high potential due to ample sunlight but if they're prone to typhoons or flooding then these risks need to be taken into account too. Similarly, while agricultural lands may seem ideal because of their openness and availability of space but this could lead conflicts over land use priorities between farming and energy production activities.
In addition, given Japan's commitment towards renewable energy following the Fukushima nuclear disaster in 2011 coupled with its abundant sunshine especially during summer months makes it an attractive market for solar power generation despite having relatively high installation costs compared with other countries due its stringent quality standards and safety requirements.
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: Sunday 30th of June 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.
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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.
