Solvanta Renewables — Business Model & Revenue Architecture
The revenue streams, the unit economics and the contracting philosophy underpinning Solvanta.
Section 5 · Business Plan
Business Model & Revenue Architecture
The revenue streams, the unit economics and the contracting philosophy underpinning Solvanta.
Revenue streams
| Revenue stream | Contract form | Tenor | Recognition | FY2031 contribution |
|---|---|---|---|---|
| Corporate PPAs | Take-or-pay PPA | 10–20 yrs | Gross, per kWh delivered | R3.0bn |
| RESA / FlexPower | Flexible supply agreement | 5–10 yrs | Gross, per kWh delivered | R1.8bn |
| Wheeling & trading | Wheeling framework + trading | 1–5 yrs | Net fee basis | R280m |
| Storage services | Capacity & ancillary contracts | 3–10 yrs | Gross service fees | R205m |
| O&M / asset mgmt | Service contracts | 5–15 yrs | Gross fees | R135m |
| Carbon & RECs | Certificate sales | Spot/forward | Within PPA bundles | Bundled |
Two features of this architecture matter for credit assessment.
First, contracted quality: by FY2031 approximately 78% of revenue
derives from contracted generation with investment-grade or
near-investment-grade counterparties, with a weighted average remaining
contract life exceeding nine years. Second, recognition basis: wheeled
third-party energy is recognised net of energy purchases (IFRS 15 agency
treatment), so reported revenue understates gross energy value
transacted, gross flows through TradeCo in FY2031 approach R2.6 billion
against R280 million of recognised net fees. The consequence is that
Solvanta’s 38.9% terminal EBITDA margin is not directly comparable to
gross-recognising utilities.
Unit economics
The core economic engine is the spread between renewable LCOE and the
avoidable cost of grid or self-generated power. Solvanta’s solar LCOE of
~R0.56/kWh and wind LCOE of ~R0.74/kWh sit far below the FY2026 Eskom
Megaflex average of ~R1.72/kWh and diesel self-generation at ~R6.80/kWh.
Contracting delivered energy at R1.10–R1.36/kWh therefore leaves
customers 20–35% below utility tariffs on a like-for-like basis while
Solvanta earns gross generation margins of 45–60% at asset level. One
installed MW of solar generates roughly 2.4 GWh per year; at the FY2031
blended tariff this yields approximately R3.2 million of revenue and
R2.3 million of asset-level EBITDA against R11.8 million of capital, a
19–20% unlevered asset yield before tax, which comfortably services 65%
gearing at an 11.0% blended cost of senior debt.
Contracting philosophy
- Anchor-then-layer. Each project reaches
financial close with a minimum of 70% of P50 output contracted to anchor
offtakers; the remaining merchant strip is sold through FlexPower and
TradeCo at higher realised prices. - Credit discipline. Offtaker credit thresholds
(minimum national-scale BBB or bank-guaranteed) are a senior-debt
condition precedent; concentration capped at 20% of portfolio revenue
per counterparty. - Escalation. PPA tariffs escalate at CPI or
CPI-linked formulae; the model assumes ~6% annual escalation against
Eskom escalation of 10%+, so the customer value proposition widens over
time. - Firming as premium. BESS-backed shaped profiles
command 8–12% tariff premiums and differentiate Solvanta from
single-technology competitors.
Confidential — this business plan is provided to prospective investors and lenders for evaluation purposes only and may not be reproduced or distributed without the written consent of Solvanta Renewables (Pty) Ltd.