Stand-Alone Solar Power Container Supports Educational Development on Remote Indonesian Island

Panasonic Stand-Alone Solar Power Container

Panasonic announced it installed the “Power Supply Container,” a stand-alone photovoltaic power package that it developed, to the National Elementary School Karimunjawa 01 in Karimunjawa Island, Jepara District, Central Jawa Province, Indonesia. On July 17, 2014, a handover ceremony was held jointly with Koperasi Pundih Artah, a project partner; and the Institute of Business and Economic Democracy Foundation (IBEKA), an Indonesian NGO.

People in Karimunjawa Island can only use electricity at night from 6pm-6am, utilizing diesel generators. As no power is available during daytime, their crucial activities are interfered including commercial activities and certain education curriculum. In particular the opportunity to utilize electronic devices, such as fans, computers, or even lighting during the day ultimately hamper the economical development of the island. To solve this social issue, Koperasi Pundih Artah, which receives Grant Assistance for Grassroots Human Security, IBEKA and Panasonic have launched a project for improving the educational environment, by utilizing the Power Supply Container, under the cooperation of Jepara District and the Embassy of Japan in Indonesia.

During school hours, the Power Supply Container gives support to improve the educational environment; children can use lighting fixtures, ceiling fans and audiovisual educational materials through personal computers and TVs. When there are no classes, the electricity is sold to nearby areas through a management association of the Power Supply Container to contribute to activation of the regional community and improve the regional electricity infrastructure.

Outline of the Power Supply Container

The Power Supply Container is equipped with twelve Panasonic “HIT(R)240” solar modules which have high conversion efficiency and can generate approximately 3 kW of electricity. It can also provide stored power from 24 built-in lead-acid storage batteries (17.2 kWh as total).

Product Name Power Supply Container (stand-alone photovoltaic power package)
Container Container for marine transportation
Dimensions (mm) 4780 (W) × 3452 (L) × 3486 (H) [Container: 3029 (W) × 2438 (L) × 2591 (H)]
Mass Approx. 3000 kg
Maximum inverter output 3 kW
Total storage capacity 17.2 kWh
Solar modules Monocrystalline hybrid solar module HIT(R) x 12
Control board Power Supply Control Unit
Storage batteries 12V/60Ah Deep cycle valve-regulated lead-acid battery x 24

Features of the Stand-Alone Solar Power Supply Container

(1) Reliable quality performance
The container was designed and developed for mass production to assure stable power supply. PT. Panasonic Gobel ES Manufacturing Indonesia will manufacture the Power Supply Containers and exercise quality management. Going forward, the company will promote transfer of assessment technology in Japan into Indonesia and aim to further lower the price of the containers through mass production.

(2) Easy and quick assembly for portability and expansion
The container is designed to require no expert construction work onsite. This allows general electrical contractors to install the Power Supply Container easily and quickly, helping to promote widespread use of the system on the various islands of Indonesia. If connected equipment and devices are increased, containers can be added to further expand their functions. Because the system is in container form, it can be easily moved from place to place if needed.

(3) Utilization of Panasonic accumulated technologies
The container uses Panasonic HIT(R) solar modules to provide power efficiently, even in a restricted space. The Company’s newly developed Power Supply Control Unit as the energy management system to monitor the remaining electricity level of the lead-acid batteries and controls supply and demand, reducing deterioration of the batteries. This reduces the life-cycle cost and maintenance man-hours for the storage batteries.

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