MVA (MVA)

MVA (Mega Volt-Ampere) is the unit of apparent electrical power equal to 1,000 KVA or 1,000,000 volt-amperes, used to rate large transformers, generator sets, and substation equipment serving industrial complexes, power plants, and grid infrastructure. MVA is the appropriate unit when the rated capacity exceeds approximately 500 KVA; below that, KVA remains conventional. Indian utility-grade distribution transformers typically come in 0.4, 0.63, 1.0, 1.6, 2.5, and 5.0 MVA standard ratings (BIS IS 1180), with grid substation transformers extending to 100+ MVA at 33/220 kV and higher.

MVA-scale electrical infrastructure is relevant to Indian recycling operations in two contexts:

• Large integrated plants — Integrated e-waste smelters (copper recovery), large tyre pyrolysis clusters, large plastic chemical recycling (gasification or pyrolysis), and aluminium/lead/copper secondary smelting can draw 1–5 MVA on connected load
• Industrial estates and clusters — When multiple recycling units share a common HT substation, the aggregate transformer is rated in MVA; the typical SEZ or MIDC industrial area has 5–20 MVA substation infrastructure

Sanctioning HT power above 1 MVA requires:

• HT connection application to the state DISCOM at 11/22/33 kV depending on load and feeder availability
• Captive substation with 11 kV (or 33 kV) RMU, transformer(s), HT switchgear, LT panel, protection relays, and SCADA — typical capex ₹50 lakh–3 crore depending on MVA and configuration
• Standby DG — diesel generator backup typically sized at 30–60% of HT contract demand, ₹8–20 lakh per MVA
• CEIG approval — Chief Electrical Inspector to Government clearance before energisation

Operating economics shift at MVA scale. HT tariffs (typically ₹6–8 per kWh) are lower than LT tariffs (₹8–10 per kWh), but demand charges of ₹250–450 per KVA per month make load factor critical. A 2 MVA plant operating at 30% load factor pays effective electricity cost 15–20% higher than the same plant at 70% load factor. This is why financial modelling for large recycling plants emphasises capacity utilisation: idle plant burns through fixed electricity demand charges that can be 8–15% of total operating cost.