Solar Diesel Hybrid Telecom System with Automatic DG Control and Energy Priority Management

1. Advantages of Solar Diesel Hybrid Telecom System

Major advantages:

- Reduce diesel generator operating hours (reduce diesel cost by 40-70%)

- Reduce dependence on the commercial power supply

- Improve site power availability and stability

- Provide an intelligent and remotely monitored energy management solution

- Provide the solution for long term optimization of energy usage

2. Introduction of Solar Diesel Hybrid Telecom System

Solar Diesel Hybrid Telecom System is a hybrid power supply solution that uses solar energy, diesel generator (DG), and grid power as the main power sources for telecommunication equipment.

It uses clean and low cost clean energy power to constitute a reliable power system, it provides high quality power for modern telecommunication services, and help telecom service providers to expand their business in those areas have no grid power, or have unstable grid power supply.

3. Applications of Solar Diesel Hybrid Telecom System

• 4G and wireless telecom base station
• Transmission switching station
• Emergency communication
• Rural network coverage
• Broadband and network access;
• Satellite communications ground station;
• Telecom roadside cabinet.

4. Architecture of Solar Diesel Hybrid Telecom System

Below is a typical solar diesel hybrid telecom system, it mainly consists of:

1) Outdoor telecom cabinet (temperature controlled)

2) Hybrid telecom power subrack, with smart control mechanism

3) Power distribution unit

4) Solar panel array (with supporting structure)

5) Backup batteries (Lithium or Lead-acid)

6) Diesel generator

7) Remote monitoring system

5. How to Customized a Solar Diesel Hybrid Telecom System for Your Site

1) Client summarize the preliminary info of his site:

• Availability of energy resources on the site and planned energy resources (Grid power, Solar, Diesel generator, Batteries);
• DC equipment load requirements (kW), current load consumption, and future expansion space;
• Backup hours requirements from batteries;
• Preference on batteries;
• Target solar array power and scale;
• Any AC load requirements or DC12V/24V load requirements;
• Preliminary calculation of local peak sun hours;
• Financial budget;

2) We ESTEL work out a system architecture map for client review, and make necessary adjustments

3) We ESTEL work out the financial quotation with detailed configuration for client

4) Client place sample order to ESTEL

5) We ESTEL output formal technical design for client’s approval of production

6) We ESTEL finish production, testing, commissioning at Chinese factory

7) Client do remote review and acceptance of the Hybrid Telecom System

8) We ESTEL arrange shipment for client