Table 4.

Economic trade-off of 10% inverter oversizing in the proposed R-EAPC Framework.

Parameter	Base (50 kVA)	Oversized (55 kVA)	Impact
Approx. inverter cost	₹3.5–4.0 lakh	₹3.85–4.40 lakh	+₹35,000–₹40,000
Reactive power headroom	Very limited	~ 46% higher	Improved voltage regulation
OLTC tap operations/year	250–300	150–180	40–45% reduction
Estimated OLTC maintenance savings	–	₹20,000–₹30,000/year	Annual OPEX benefit
Avoided curtailment	–	1–2% energy gain	₹10,000–₹20,000/year
Feeder loadability	Normal	~ 15% higher	Allows more PV hosting