Page 69 - Hitachi IR 2025

Energy management
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Commissioned microgrid with additional rooftop
solar of 640 kW at Maneja, totaling 932 kW of
solar capacity. The microgrid includes 250 kVA of
Battery Energy Storage System (BESS).
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Replaced diesel-fueled trucks with battery-
operated forklifts and reach trucks.
Generated energy savings with solar streetlights
and oven modifications at Halol.
Switched to Piped Natural Gas (PNG) from High
Speed Diesel (HSD) in transformer and instrument
transformer factories, reducing CO2 emission by
~220T.
Installed motion sensors in washrooms and
meeting rooms, resulted in energy savings by
controlling operation of lights during day time.
Replaced conventional lights with LED lights,
saving 39,000 kWh/annum.
Replaced conventional and T5 fixtures with
energy-efficient LED at gas insulated switchgear
factory. This resulted in avings of ~21,000 kWh.
All upcoming infrastructure investment includes
installing LED lights.
Maintained power availability of 99%+ in
distribution network, leading to reduced HSD
consumption and energy saving by reducing
reprocess time.
Installed VFDs in air handling units in GIS factory
to gain reliability and efficiency of blowers, along
with energy conservation, saving 55,000+ kWh.
Maintained power factor 0.99 by automatic
power factor control panel, gaining rebate in
energy bill.
Enabled stabilized voltage in lighting circuits in
dry and traction transformer factory by installing
lighting transformer in plant and office area light
fixtures, also saving energy.
Installed solar tubes on factory roof, resulting
in improving lux level in factory area and
energy savings.
Installed HVLS (High Volume Low Speed) fans
by discarding multiple industrial fans, resulting in
improved uniform cooling and energy saving of
500+ kWh/annum.
Modified capacitor manufacturing process and
improved energy efficiency in heating systems,
resulting in saving of energy and process time
by occupying less space compared to earlier
processes. New heating process consumes 40%
less energy.
Water stewardship
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Constructed 7 rainwater harvesting structures
in Maneja.
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Installed Flowmeter in Maneja.
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Substituted water-cooled vacuum with air‑cooled
vacuum pump in helium plant.
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Reused STP treated water in 15% garden area
in Maneja.
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Installed water meter and aerator taps in Peenya.
Waste management
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Saved shell daila flushing oil.
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Created sustainable solutions for hazardous
waste disposal (circular economy - zero waste
to landfill)(initiated oily quartz disposal as a
co‑process fuel instead of landfill).
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Re-used and reduced wooden waste at Peenya
and Savli.
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Paper cups free facilities - Peenya
and Doddaballapur.
Integrated Annual Report 2024-25
67