1. Upfront Cost Breakdown (2026 Market Rates) The industry standard is now roughly S$1,000 to S$1,300 per kWp for a standard Tier-1 system. Smaller or "premium" setups (using high-efficiency IBC panels or microinverters) can still hit S$1,500+ per kWp. Property Type Typical System Size Estimated Total Cost Monthly Savings (Est.) Terrace House 5 – 8 kWp S$6,000 – S$12,000 S$150 – S$250 Semi-Detached 10 – 15 kWp S$11,000 – S$19,000…