Sharat Chandra
Market Drivers Green Telecom Energy Costs Energy ~ 25% of OPEX Reducing ARPU Energy bills rise as telcos go rural Regulatory, Government Subsidies ~ 10% Telecom Towers: No Grid supply ~ 50% have < 12 hours of Grid supply India has committed to a reduction of 20-25% in carbon intensity from 2005 ~ 337,000 levels telecom by 2020 towers through mandatory fuel efficiency standard - India's commitment at Copenhagen Sleep ~ 463,000 mode by BTS, 2013 power supplies Fuel cells USO Funds for pilots on use of renewable energy at remote sites Carbon Most deployments Credit Trading still indoor requiring AC Contribute towards greener environment Facilitated by Technological Evolution in Energy Solutions Social Obligations Solar and Wind solutions Source: Times of India Economic National Voltage fluctuation Solar development Mission leading of rural to DG areas run even while grid power is available Improve Soft loans up to 5% annual interest rate Power management overall network systems availability Remote Monitoring System Fuel 30% price subsidy which for is rising select applications annually by 15% Source: COAI Consultation Paper 90% subsidy for niche applications in special category Source: states TRAI, and KPMG DC air conditioners with built in in other Source: World Resources Institute remote and difficult areas Tubular gel batteries ambient cooling Green Shelters
Challenges Green Telecom Energy saving products available but engineering solutions are not Accountability of products Solar Hybrid Remoteness of deployment is a concern Free Cooling Remote Monitoring Measurement of actual energy Fuel consumption Optimisers Pilferage
Engineering model to determine energy sources Site analysis to arrive at best fit Data Collection: Site and Location Data Analysis and Creation of Possible Options Simulation for Load & power generation Cycle Selection of Best Fit Implementation and Performance Monitoring Wind Factors Based and on considered simulation: Solar patterns are: are analyzed Example: 1. Electrical Capex-Opex load: caps Telecom ;Non-Telecom 2. 1. Mix: Solar Solar system - Wind was able - Fuel to Cell produce Site Location Information: - - Battery 25kWh/year Clutter Solar type: Open Wind/ Dense Fuel / Partial Cell 2. During June-Aug, Distance Wind from nearest turbine City 90% Wind 9% flow 1% would bridge the gap in power 3. Simulated Surrounding output from power Solar output Area information with max output Nearest Gas station and possible of 2kW logistics aspects 3. Electrical Fuel Cells Inventory are used Specifications as backup for Site extended lay out bad (available weather sq ft periods area) Site Lat long 4. No dependence on grid power 5. Zero carbon emissions
Capex Gradient Model for Opex reduction Wireless Network CAPEX Operations Optimisation Process Improvement Energy Audits Right-sizing OPEX Energy Management Solutions Remote Monitoring Systems O P E X C A P E X Passive Cooling Alternative Energy Sources Fuel Optimiser Data Aggregation & Analysis Advanced Technology Solar Wind TGel Batteries Sleep Mode BTS
DG - The last Resort Utilize Solar power during the day. Excess Energy Stored Utilize Wind Energy where available. Utilize DG as the last resource Utilize Renewable Energy when available. Buffer excess energy in Battery 118K Renewable Energy Tower sites can save upto 2.5 Bn Ltrs of Diesel GSMA Press Release
How Green is Green Annual Expected Carbon Emission Reduction Per Site 27 tons 24 tons 19 tons ALL Green - Renewable source of energy (Solar, Wind); Free Cooling; Fuel Optimisation; Voltage correction; 4 Hour full load battery back-up deployed No DG run or max of 15 hours per month Green - Free Cooling; Fuel Optimisation; Voltage correction; 4 Hour full load battery back-up deployed DG run-max 2 hours per day Energy Efficient - Free Cooling; Fuel Optimisation; Voltage correction deployed DG run max of 4 hours per day
Remote Monitoring System BTS Site D.G. Trouble Tickets, work updates BTS OMCR Alarms, Site Data Intelligent Alarm Management System A.C. Battery Bank Real time monitoring & Analysis RMS Servers
Remote view from the NoC Continuous energy measurement and improvement methodology
Benefits of Green Tower Economic: Employment Generation; Returns on Land on lease without environmental degradation Environmental: Social Equity Tower Sharing saves utilization of precious natural resources : Steel (app 10 tonnes); Cement, Concrete Galvanization (500 litres of Zinc); Land & Soil conservation Economic Prosperity Optimised use of Power: More communication throughput/energy unit consumed Generation and consumption local- no transmission losses Environmental Performance Carbon Footprint reduction Source of Power Standalone basis After EMS % savings Grid 85 Kwh 68 Kwh 20 Diesel Generator 30 Liters 17 litres 43 A GBT shared by 2 operators with 12 hours EB and 12 hrs DG running is assumed each KWH contributes 0.82 kg of co2 and one liter of Diesel consumption emits 2.8 kg of co2
Contribute towards building a greener, cleaner environment with reduced carbon emissions Save on OPEX by reducing power consumption through energy saving engineering solutions Ensure uninterrupted power at the site increasing total site availability in the network Increase equipment shelf life by ensuring healthy power at the site