ENeAPI, a Comprehensive API Service for the Energy Industry
Services

Japan Weather Association provides estimation and forecast information through API used in a wide range of energy business fields.

ENeAPI is a comprehensive API service, providing weather estimation and forecast information for your specific location of interest. This API provides important information for energy businesses such as the wind and solar power industry, electricity providers, energy management and O&M businesses*1.
ENeAPI has four main business directions.

・“Solar Power API” : Information for solar energy operators
・“Wind Power API” : Information for wind energy operators
・“Energy Management API” : Information for energy management businesses
・“Risk Information API” : Information for distributed energy resource owners and operation management companies

Service contents:

ENeAPI consist of these main services:
★ indicates services unique to Japan Weather Association.
For details on each content, please check out these following pages.

・SYNFOS-solar, Solar radiation/solar power output prediction
・SOLASAT 9-NOW, Solar radiation estimation service by Himawari 8 and 9
・SOLASAT 9-Nowcast, Solar radiation prediction service by Himawari 8 and 9
・Solar radiation estimations from AMeDAS observation data
・Electricity Demand Forecast
・Price prediction (electricity trading price prediction)

API Overview

Features

・ Providing forecast information by location points
Japan: can be set based by postal code, latitude and longitude coordinates, facility information, etc.
Global: latitude and longitude coordinates
・ Providing forecasting information in accordance with the customers’ usage schedule
・ Provides estimation and forecast information that can be used in a wide range of the energy industry.

Purpose

・ Providing support to create a highly accurate energy sales-plans for the renewable energy industry, for energy companies, balancing groups*2, and energy aggregation*3, lastly support the reduction of imbalance risks.
・ Supporting electricity providers in creating economical electricity procurement plans
・ Enhance and efficient the market transactions in virtual power plant (VPP) business and demand response (DR)
・ The use of surplus electricity for households who ended FIT*4
(Promotion of self-consumption in combination with storage batteries, support for predicting surplus electricity, etc.)
・ Operational support for EMS (Energy Management Service), ZEH (Net Zero Energy House), etc. combined with renewable energy generation equipment, storage batteries, electric vehicles (EV), etc.
・ Support for the introduction of self-consignment, on-site PPA, and off-site PPA using renewable energy generation (support for achieving R E100)
・ Realization of advanced energy management from individual factories, buildings, and residences to microgrids, smart cities, and even power area units
・ Determining whether to carry out offshore/underwater work in conjunction with preliminary surveys and environmental assessments for offshore wind power generation.
・ Planning for offshore and underwater work including maintenance of offshore wind power generation equipment.
・ Maintenance and management of power generation and storage facilities, etc., and ensuring resilience*5.

1.Please tell me about the procedure from application to start of service usage.
＞After the start date stated in the application form, you can use this service based on the access information we will send. Access information will be issued within approximately 10 business days after the application is returned and received. You can use this service after the start date stated in the application form, based on the access information we will send.

2.Please tell me the price.
＞Prices vary depending on the requested elements and number of locations. Therefore, if you specify the target content, provision elements, and number of locations from the service list, we will give you a customized estimate.

3.Are there any restrictions regarding data usage?
> There are restrictions on the use of these services. For more information, please contact us.

4.Do you handle past data?
> Acquisition via API is limited, but past data may be available upon request (for a fee).

5.What are the power generation equipment specifications required for power generation output conversion?
> This refers to the azimuth and tilt angle of the panel, as well as the rated capacity (an instruction manual will be sent separately when using the service). For further information, please contact us.

6.Do you accept credit card payments?
> We are sorry, but credit card payments are not accepted.

7. Is it possible to purchase it individually?
＞We are sorry, but ENeAPI is a service for corporations.

Related Press Releases (in Japanese)

Solar radiation and photovoltaic power output forecasting API launched.
～ Predictive information for any location can be easily obtained via API. ～
(2020/08/03 Japan Weather Association News Release)
https://www.jwa.or.jp/news/2020/08/10704/
JMA expands its “Solar radiation and solar power output forecasting API” for solar power producers.
～ Two new functions have been added ahead of the start of the FIP system in April 2022. ～
(2021/10/26 Japan Weather Association News Release)
https://www.jwa.or.jp/news/2021/10/14952/
Japan Weather Association launches ENeAPI, a comprehensive API service for energy companies.
～ The Japan Weather Association has significantly expanded its “Solar Radiation and Photovoltaic Power Generation Output Forecasting API” and renewed it as a comprehensive API service. ～
(2022/02/03 Japan Weather Association News Release)
https://www.jwa.or.jp/news/2022/02/15763/
JMA expands ENeAPI, a comprehensive API service for energy companies.
～ In anticipation of the expansion of the introduction of offshore wind power, the provision of wind direction and wind speed forecasts, storm surge forecasts and wave forecasts has been launched. ～
(2022/03/1 4 Japan Weather Association News Release)
https://www.jwa.or.jp/news/2022/03/16093/

(*1) O&M business: Businesses that provide operation and maintenance after the installation of power generation facilities.
(*2) Balancing group: A function that provides for more efficient procurement and supply-demand management operations in the retail electricity business. By having a lead new power provider organise multiple new power providers and conducting intra-group flexibility of imbalance (difference between planned demand and power generation) and power supply procurement.
(*3) Aggregator: Refers to a specified wholesale supplier, which aggregates consumer energy resources and distributed energy resources and provides various services using the aggregated resources.
(*4) Graduated FIT households: Households whose 10-year procurement period under the solar power FIT system (a system under which the state promises to purchase electricity generated by power companies for a certain period and at a certain price) has ended.
(*5) Resilience: toughness or ability to recover. Here, it refers to the ability to adapt to events such as weather disasters through the coordination of distributed resources.

® 【ENeAPI】 is a registered trademark of the Japan Weather Association (Registration No. 6574904).