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Global Environment

Renewable Energy Introduction Potential Map and Basic Zoning Information FY2011

July xx, 2012

1. Introduction

Map data from the "Renewable Energy Introduction Potential Survey FY2010" and the "Renewable Energy Basic Zoning Information Development FY2011" are being published as reference material to aid in discussions towards the introduction of renewable energy. In this study, the abundance, the introduction potential, and the potential under different scenarios are being calculated for Photovoltaic power (PV) (non-domestic), wind power, small and medium-scale hydropower, and geothermal power (including hot spring power generation), and PV in individual buildings (including households).

2. Notes for Data Use

  1. The objective of this study is to estimate countrywide abundance and introduction potential and may not be appropriate for evaluating in detail regional units or particular points in space. It should be thought of as an introduction potential map based on a standardized mode of thinking. (For details please see the "Renewable Energy Introduction Potential Survey FY2010" and the "Renewable Energy Basic Zoning Information Development FY2011").
  2. For example, in the estimation of small and medium-scale hydropower generation introduction potential, a flow based on the overall flow data was assumed, meaning that even though the introduction potential as estimated may have been accurate, further local studies would be necessary to determine the optimum location for a power plant. Further, in the case of small and medium-scale power generation and geothermal power generation, resources that are already being exploited are included meaning that in some cases no further development would be possible.
  3. Where you are citing this introduction potential map, please clearly specify the original reference the "Renewable Energy Introduction Potential Map (FY2011 version) by the Ministry of the Environment" or "Renewable Energy Basic Zoning Information (FY2011 version) by the Ministry of the Environment", along with the conditions of use.
  4. The information used for the maps are the countrywide data prepared by the Digital National Land Information. However, it might not be the recent version. Please ask each prefectural government or presiding ministry about the detailed information about the designated areas by laws and regulations.

3. Definitions

  • Abundance;
      This is the amount of energy resources which can be theoretically estimated by the feasible area for system installation, mean wind velocity, river discharge or other relevant factors. It excludes the amount of energy which is difficult to utilise based on the current technological level and does not take various limiting factors (such as land inclination, legal restrictions, land use, distance from a residential area and others) into consideration.
  • Introduction potential;
      This is the amount of energy resources which take various limiting factors for energy collection and utilisation into consideration. This amount is a portion of the abundance.
  • Possible introduction amount under scenario;
      This is a portion of the introduction potential which can hopefully be realised for actual use under a specific scenario (assumptions) for project productivity. For each type of renewable energy, the unit construction cost and other conditions are assumed to conduct a simulation on project viability and the outputs of those projects where the internal rate of return before tax is higher than a certain value (approximately 8% or higher totalised in case of wind power generation, small and medium-scale hydropower generation and geothermal power generation).
      The year of realisation is not considered. In general, the actual amount of energy developed is anticipated to be lower than the possible introduction amount under scenario. However, it could exceed the possible introduction amount under scenario, as the introduction potential may be developed disregarding the economic profitability.

4. Map Information

There are two map information; Introduction Potential Map via Google Earth and Basic Zoning Information as PDF files.
  • Introduction Potential Map;
      It is possible to view abundance and introduction potential as estimated in the "2010 Renewable Energy Introduction Potential Survey" and the amount introduced under a number of modeled scenarios as estimated in the "2011 Renewable Energy Zoning Information Maintenance Project". This requires installation of Google Earth.
    * If you do not have Google Earth installed on your computer, it can be downloaded from Google Earth (external to the Ministry of the Environment, showed in an alternative window).
  • Basic Zoning Information (Legend and explanatory notes in PDF files are written in Japanese);
      It is possible to view the basic zoning information, which is layered according to social indicators (such as laws). It was published in the "2011 Renewable Energy Zoning Information Maintenance Project".This requires installation of PDF viewing software (such as Adobe Reader).
    * If you do not have Adobe Reader installed on your computer, it can be downloaded from Adobe Reader (external to the Ministry of the Environment, showed in an alternative window).
Map information View Icon
Introduction Potential Map Google Earth View Map Data Button

Cilck here for instruction
Basic Zoning Information PDF file (in Japanese) Button of Select from Grid Map Button of Select from Google Earth
Cilck here for instruction

5. Viewing Introduction Potential Map Using Google Earth (English Version)

5.1 List of Publically Available Data

The following data is publically available. In the case of PV power generation (non-residential), introduction potential is available for each category at the prefecture level. Further, because the introduction potential under the scenarios modeled for geothermal (53-120C) was zero countrywide, the data is not available.

List of Publically Available Data
Renewable Energy Data Categories
PV Power Generation (Non-residential) Introduction potential (prefecture level)
PV Power Generation (for Buildings) Introduction potential
Possible introduction amount under scenario
Onshore Wind Power Generation Abundance
Introduction potential
Possible introduction amount under scenario
Map of business opportunity
Offshore Wind Power Generation Introduction potential
Possible introduction amount under scenario
Map of business opportunity
Small and Medium-Scale Hydropower Generation (Rivers) Abundance (Adjusted)
Introduction potential
Possible introduction amount under scenario
Small and Medium-Scale Hydropower Generation (Agricultural Canals) Abundance (Adjusted)
Introduction potential
Possible introduction amount under scenario
Geothermal Power Generation (Over 150C) Abundance
Introduction potential
Possible introduction amount under scenario
Map of business opportunity
Geothermal Power Generation (120-150C) Abundance
Introduction potential
Geothermal Power Generation (53-120C) Abundance
Introduction potential

5.2 How to View the Data Using Google Earth

  1. Click View Map Data and select [Open] and Google Earth will open.
    1) If you do not have Google Earth installed on your computer, it can be downloaded here Google Earth (external to the Ministry of the Environment, showed in an alternative window).
    Google Earth Operation Navigation
  2. On the map, click on the balloon that corresponds to the city, prefecture or region that you wish to view.
    Google Earth Operation Navigation2
  3. A list of data categories for the city, prefecture, or region you have selected will be displayed in a popup.
    Google Earth Operation Navigation3
  4. When you click on the data category you wish to view (e.g., Introduction potential for onshore wind power generation)
    Google Earth Operation Navigation4
  5. If you click the corresponding legend, the meaning associated with each color will be displayed.
    Google Earth Operation Navigation5
  6. If you click on data categories under [Places], popups will appear displaying summary results.
    Google Earth Operation Navigation6
  7. If the following dialogue box appears when you close Google Earth, select [Discard].
    Google Earth Operation Navigation7

View Map Data Button

6. Viewing Basic Zoning Infomation Map Using PDF files (Legend and explanatory notes are written in Japanese)

6.1 List of Publically Available Data

The data shows the abundance and introduction potential for onshore wind power generation, small and medium-scale hydropower generation (rivers, agricultural canals), and geothermal power generation (over 150C, 120-150C, 53-120C) combined with the following basic information.
In a default position, the abundance of each energy resource is displayed. If you wish to view that of introduction potential, please click the check box of abundance layer and turn the display off. (Click here to see the procedure.)

Basic Information
Abundance (of each energy source)
Introduction Potential (of each energy source)
Wilderness Area, Nature Conservation Area
National Wildlife Protection Area (Special Protection Areas)
World Natural Heritage Site
Electric Line
Base Map (digital map 1: 200,000 scale)
Information Related to Onshore Wind Power Generation
National Park (Special Protection Zones, Class I Special Zones)
Urban Area
Protection Forest
Information Related to Small and Medium-Scale Hydropower Generation
National Park (Special Protection Zones, Class I Special Zones)
Information Related to Geothermal Power Generation (Over 150, 120-150)
National Park (Special Protection Zones, Class I-III Special Zones)
Urban Area
Information Related to Geothermal Power Generation (53-120)
National Park (Special Protection Zones, Class I Special Zones)

6.2 How to view the data using PDF

It is possible to view the data in a PDF file by choosing either "Select from Grid Map" or "Select from Google Earth".

A) If you choose "Select from Grid Map".
  1. A map of Japan divided into a grid (1st Mesh) is displayed.
    Image of using the PDF file 1
  2. If you click on the zone for which you wish to view data, its basic zoning information will be displayed in a PDF file.
    Image of using the PDF file 2
  3. As the basic zoning data displayed is layered, it is possible to alter the information displayed on the map by clicking On/Off in the check box for each layer. Click Show layer button to display the layer composition. All layers are displayed in a default position. In default position, the abundance of each energy resource is displayed. If you wish to view that of introduction potential, please click the check box of abundance layer and turn the display off.
    *) If the On/Off checking boxes are not visible, right-click and select "Show Navigation Panel Buttons".

    Image of using the PDF file 3


Button of Select from Grid Map

B) If you choose "Select from Google Earth".
  1. Click on the area of the grid for which you wish to view the basic zoning information.
    Image of using the Google Earth 1
  2. Select the type of basic zoning information that you wish to display from the menus on the map.
    Image of using the Google Earth 2
  3. The basic zoning information will be displayed in a PDF file.
    Image of using the Google Earth 3
  4. As the basic zoning data displayed is layered, it is possible to alter the information displayed on the map by clicking On/Off in the check box for each layer. Click Show layer button to display the layer composition. All layers are displayed in a default position. In default position, the abundance of each energy resource is displayed. If you wish to view that of introduction potential, please click the check box of abundance layer and turn the display off.
    *) If the On/Off checking boxes are not visible, right-click and select "Show Navigation Panel Buttons".

    Image of using the PDF file 3


Button of Select from Google Earth

7. Reference Information

Clickand then click [Open] to start Google Earth.
  • Habitat map for Golden Eagle and Mountain Hawk (2nd mesh);
    The following data is open source (Source; Ministry of Environment 'Manual of rationalization of the site for constitution of Wind-power generation for birds')
    Table of Reference Data
    Data Download
    Habitat map for Golden Eagle (2nd mesh) Click to download habitat map of Golden Eagle (2nd mesh)
    Habitat map for Mountain Hawk (2nd mesh) Click to download habitat map of Mountain Hawk-eagle (2nd mesh)
    [Points to Consider]
    1. The habitat map for the Golden Eagle and the Mountain Hawk is based on the results obtained from The Survey of Rare Raptor Species (Golden Eagle and Mountain Hawk) (Ministry of Environment, Ministry of Economy, Trade and Industry and the Ministry of Land, Infrastructure, Transport and Tourism, 1997- 2001) and the following additional survey.
    2. It is required to get additional information from local experts because areas of the grid without information may also be inhabited.
  • Classification of hot spring site;
    The following data is open source.
    Table of Reference Data
    Data Download
    Classification of hot spring sites based on geothermal and hot spring resource data Click to download Classification of hot spring point (site) based on geothermal and hot spring resource data

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