Bulk Solar Savings Calculator

Portfolio-scale solar deployment unlocks institutional pricing and bulk incentives.

Properties count

kWh consumption per property

Current rate per kWh

Solar replacement %

Bulk discount %

Annual portfolio savings

$212,940

Per property savings

$14,196

Bulk discount advantage

$49,140

How the math works

Replaced kWh = consumption × replace %. Per property savings = kWh × rate × (1 + bulk discount).

15 × (120k × 65% × $0.14 × 1.3) = 15 × $14,196 = $212,940 annual. $49,140 bulk advantage vs single rate.

How to Use

Enter properties count.
Enter kWh consumption per property.
Enter current electricity rate.
Enter solar rate replacement %.
Enter bulk discount % per kW.
Read annual bulk savings.

Frequently Asked Questions

Why go bulk solar?

Single-property solar: $2.50-3.50/watt installed. Portfolio (10+ properties, 1-5 MW aggregate): $1.50-2.20/watt — 30-45% savings. Vendor negotiates master service agreement, batches installations, shares equipment. Plus: combined tax credit optimization, centralized financing (PPA or solar lease), consolidated monitoring and maintenance. Institutional portfolios (apartments, self-storage, industrial) increasingly deploying at bulk rates.

Ownership structures?

(1) Owner-purchased (direct): property owns solar, keeps all savings + tax credits. Requires capital. (2) PPA (power purchase agreement): third-party owns solar, property buys electricity at fixed rate below utility rate, no capital. (3) Solar lease: property leases solar from installer, monthly payment with 20-year term. (4) Community solar subscription: property gets solar credits from shared facility without on-site install. Each has different cost, returns, tax, accounting implications.

Tax credit optimization?

Federal Solar Investment Tax Credit (ITC): 30% of eligible project cost (Inflation Reduction Act extension through 2032). MACRS accelerated depreciation: 5-year schedule for solar equipment. State-specific credits: CA (SGIP), NY (NY-Sun), MA (SMART), NJ (SuSI). Stackable — total can reach 40-60% of project cost recovered via tax. Institutional owners use syndication strategies to monetize more tax credit than they can use themselves.

Bulk vs single-property?

$2.50M single-property (100 kW × $2.5k/kW): $750k tax credit + $15k/yr savings at 5% electricity rate savings = $850k investment saved over 15 yr. $25M bulk (1 MW × 10 properties at $2k/kW): $7.5M tax credit + $160k/yr savings = $9M saved over 15 yr. Bulk execution 200-300 bps more complex but $1M+ of additional economic value captured. Institutional portfolios should pursue aggressively.