Summary of annual savings from various EEMs

1. Shram Shakti Bhavan / Transport Bhavan Energy Services Performance Contracting Project Summary of annual savings from various EEMs Guaranteed savings - 788143 kWh / year

2. Shram Shakti Bhavan / Transport Bhavan Energy Services Performance Contracting Project Percentage contribution to savings by various EEMs

3. Shram Shakti Bhavan / Transport Bhavan Energy Services Performance Contracting Project EEM # 1 - Lighting • Estimated contribution to gross savings 38.26% • Proposed improvements are • Replace existing fluorescent tube lights with energy efficient T-5 fluorescent tube lights and electronic ballast • Replace GLS lamps with CFL / T-5 FTL with electronic ballast • Replace sodium vapour / metal halide street lights with T-5 FTL-based weatherproof street lights

4. Shram Shakti Bhavan / Transport Bhavan Energy Services Performance Contracting Project EEM # 2 - Air-conditioning • Estimated contribution to gross savings 37.51% • Proposed improvements are • Install occupancy sensor above work-table, to ensure that AC operates only when the space is occupied. • Integrate a wireless thermostat in the same sensor which helps in controlling the workplace temperature (instead of the regular AC thermostat which measures the return-air path temperature) • Have hand-held field programming devices for changing wireless thermostat temperature set-points

5. Shram Shakti Bhavan / Transport Bhavan Energy Services Performance Contracting Project EEM # 3 - Canteen Heating • Estimated contribution to gross savings 4.21% • Proposed improvement is • Replace existing electrical storage geysers with energy-efficient LPG-fired on-line water heaters • Cost of additional LPG expense to be borne by the ESCO

6. Shram Shakti Bhavan / Transport Bhavan Energy Services Performance Contracting Project EEM # 4 - Winter Heating • Estimated contribution to gross savings 18.54% • Proposed improvements are • In air-conditioned space, use the occupancy sensor and wireless thermostat to regulate the usage of the heaters within a set temperature range and at the time of occupancy only • In non-air-conditioned space, replace existing electrical blowers with more efficient (hence lower capacity) blowers / quartz heaters with rotary operation to ensure proper heat circulation

7. Shram Shakti Bhavan / Transport Bhavan Energy Services Performance Contracting Project EEM # 5 - Water Pumping • Estimated contribution to gross savings 1.48% • Proposed improvement is • Replace one 10 HP water pump each in Shram Shakti Bhavan and Transport Bhavan premises, with efficient submersible pumps • All other pumps have been installed after 2002, and hence, need not be replaced now.

8. Shram Shakti Bhavan / Transport Bhavan Energy Services Performance Contracting Project Project schedule at a glance

9. Shram Shakti Bhavan / Transport Bhavan Energy Services Performance Contracting Project Case Study: DISCOM model, AECo, Ahmedabad • Total installation base 70,000 Nos. T-5 retrofit FTL (and still growing) • Savings in VA 4.2 MVA • Participants Individual consumers • Current status Ongoing

10. Shram Shakti Bhavan / Transport Bhavan Energy Services Performance Contracting Project The DISCOM model - advantage utilities • Reduced peak demand load on account of energy savings. • Improved power factor, enhanced system capacity and lower T&D losses - all at zero investment. • 60 kVA reduced load for every 1000 units installed. • Additional revenue by way of collection charges. • To pay money to AEL only if the money is collected from consumer.

11. Shram Shakti Bhavan / Transport Bhavan Energy Services Performance Contracting Project The DISCOM model - advantage consumers • Reduced energy bill. • Monthly installments can be paid from savings. • Easy retrofit installation in existing fittings - no change in wiring • Increased and better quality of light. • Model available to cater to new fitting requirement