New White Papers

Area Required for PV Array to Power BTS Towers (Ver 2.0, May 2019)

This White Paper offers three practical ways to expand the space available to locate the necessary PV Array in Off-Grid BTS Towers. Examples of different ways to mount the PV Arrays on the towers are shown (with images).

Download the White Paper: Area Required for PV Array to Power BTS Towers.

How to Reduce Greenhouse Gases at Remote BTS Energy Systems

Download the Guide now.

A Case Study in Cost Reduction and Greenhouse Gas Elimination

by John Pfeifer, CEO, Apollo Solar

Based on remote data gathered on over 1,000 installations across Africa, the study details the benefits of pure solar in remote telecom installations.

Read or download the case study.

Read the case study in the March 2019 TowerXchange Journal.

In-Depth Analyses and Studies

Remote Energy Hybrid Systems – Essential Specifications

Using the Apollo Solar T80HV t High Ambient Temperatures

Remote Energy System Costs: Solar Energy vs. Diesel Fuel

Diesel Price vs. Crude Oil

Diesel Price vs. Crude Oil (Rev 2)

Solar Lights for Africa

MTBF and MTTF of Apollo Solar’s Telecom Energy System.

Glossary of Terms Relevant to Telecom Energy Systems

Essential Specifications for Remote Hybrid Energy Systems (XLS)

T80HV Charge Controller with 5 to 6kW of PV Input Power

Battery Voltage and State of Charge – using the T80HV Charge Controller

Hybrid Solar/Diesel Generator Battery Based Remote Energy System

Apollo Solar Site with Proper Battery Settings – Example