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SlimSun Too (Phase 1 & 2) C&I / wheeling

Medium confidence construction Last researched: 2026-06-26

Sources

• SPS Africa project page — Slimsun Too (2026)
• Green Building Africa — SlimSun Too nears completion, traded by EXSA (2024-2025)
• Construction Review Online — SlimSun Too Solar IPP welcomes new partner (2024)
• Engineering News — SPS acquires two solar projects in Western Cape, enters PPA (2024-07-10)

Research notes

From the original pasted directory; not independently verified in this research round. Small C&I scale. CONFIRMED — exists, corroborated by 4 independent sources (SPS Africa, Green Building Africa, Construction Review Online, Engineering News). PROJECT IDENTITY: SlimSun Too is a NEW (2024-2026) SPS-owned IPP in Malmesbury, Western Cape, NOT to be confused with the older SlimSun Swartland Solar Park (5MW, commissioned Aug 2015, developed by Franco Afrique Technologies + TriAlpha, sold to Eskom under a 20-yr REIPPPP PPA). SlimSun Too sits ADJACENT to that older farm and was developed by the same area developer (referenced as Anthony Corin); SPS bought 100% of the shares. CAPACITY (seed 'AC=11.2 MW' is WRONG — that figure is the DC nameplate): - Total project = TWO phases of 5 MW each = 10 MW AC (Phase 1 + Phase 2). - Phase 1 alone is described as 5,600 kWp AC (i.e. ~5.6 MW) with 11,200 kWp (11.2 MW) NOMINAL DC. Sources are inconsistent on whether 5,600 kWp / 11,200 kWp describes Phase 1 only or the combined plant; one source gives Phase 1 = 5.6 MW AC and Phase 2 = 4.6 MW (planned), summing to ~10 MW. Reported mw_ac=10 (combined, the most consistent figure) and mw_dc=11.2 (the 11,200 kWp nominal DC figure). FLAG: there is mild ambiguity in the sources about phase-level AC splits (5.0/5.0 vs 5.6/4.6) and whether 11.2 MWdc is Phase 1 or whole-plant — treat phase-level DC split as unresolved. STATUS: seed 'construction' is broadly correct. As of latest reporting Phase 1 is in final commissioning / RETEC testing (effectively operational imminent); Phase 2 reached financial close and construction was to commence shortly. Overall project = construction. Phase 1 commissioning targeted ~May 2025, Phase 2 ~May 2026 per SPS page. TECH: single-axis tracking, ground-mount; ~10 ha (25 acres); ~12 million kWh/yr expected; connects to Eskom Eenboom substation. OFFTAKE / REGULATORY: This is a private wheeling / IPP-to-trader model (NOT REIPPPP). Power sold to EXSA (Energy Exchange of Southern Africa), a licensed power trader (backed by Remgro and Rand Merchant Bank), under a 10-year PPA; EXSA wheels to corporate offtakers (Woolworths, Mediclinic, Delaire Graff Estate). One of SA's early IPP-to-trader wheeling deals. FINANCE: Phase 1 valued at R87 million; funded by Investec. Financial close on Phase 2 achieved (reported 2024). Dates given as YYYY because sources give relative timing rather than exact close/start dates. GEO: lat/lng is an APPROXIMATE Malmesbury town pin (-33.46, 18.73), not a surveyed plant boundary — do not treat as exact. No soil/geotech data found. VERIFY: Adversarial check (2026-06): EXISTENCE CONFIRMED via 5+ independent sources (SPS Africa, Green Building Africa, TechCentral, Construction Review Online, EXSA, Engineering News). CORROBORATED: developer/owner = Sustainable Power Solutions (SPS, bought 100% shares); EPC = SPS (constructionreviewonline + TechCentral: 'SPS serves as both IPP and EPC'); offtaker = EXSA (Remgro/RMB-backed trader) on a 10-yr PPA wheeling to Woolworths, Mediclinic, Delaire Graff Estate; regulatory route = private wheeling/IPP-to-trader (NOT REIPPPP); status = construction (Phase 1 final commissioning, Phase 2 financial close reached); single-axis tracker; ~10 ha; R87m, funded by Investec; land owned by Anthony Corin / Franco Afrique Technologies; connects to Eskom Eenboom substation. CAPACITY CAVEAT: mw_ac=10 is the COMBINED two-phase target (Phase 1 ~5.6 MW currently built); acceptable as a round figure but note Phase 1 headline is ~5.6 MWac. mw_dc=11.2 is DROPPED: the 11,200 kWp figure most likely represents the full two-phase nameplate (2x5,600 kWp, consistent with 'double to 10 MW'), NOT a DC value distinct from a 10 MW AC; no source explicitly labels an AC figure separate from DC, and 10 MWac/11.2 MWdc is an implausible 1.12 DC:AC ratio. GEO is a town-level Malmesbury pin (approximate, correctly flagged), not a surveyed location. PRESERVED PRIOR REFUTATION from seed: the seed's 'AC=11.2 MW' was wrong (11.2 is a kWp/DC-style figure, not AC). Overall: core project facts solid; capacity AC/DC split unresolved -> medium confidence, drop mw_dc. CONFLICTS: Capacity AC/DC split is internally inconsistent and not cleanly supported. Sources quote 'Phase 1 = 5,600 kWp' and a project 'nominal DC capacity of 11,200 kWp', plus a phrase that the second phase 'doubles capacity to 10 MW'. The overlay reads 5,600 kWp = AC (Phase 1) and 11,200 kWp = whole-plant DC. But 'double to 10 MW' implies 5,600 kWp and 11,200 kWp are the SAME metric (Phase-1 vs both-phases), not an AC/DC pair. No source explicitly labels 5,600 as AC. ; mw_ac=10 vs 10.2 MW conflict: most sources say two 5 MW phases (=10 MW AC), but Green Building Africa describes Phase 1 = 5.6 MW AC and Phase 2 = 4.6 MW (=10.2 MW). The headline AC figure for the CURRENTLY-BUILT Phase 1 is ~5.6 MW, not 10; the 10 MW is a two-phase target. ; mw_ac=10 paired with mw_dc=11.2 is physically implausible: that is a ~1.12 DC:AC ratio, far too low for a single-axis SA solar plant (expected ~1.3-1.5+). A coherent Phase-1 pair would be ~5.6 MWac / 11.2 MWdc; a coherent full-plant pair would be ~10 MWac / ~20 MWdc. The overlay's mixed pair (10 AC + 11.2 DC) cannot both be right. ; geo coordinates (-33.46, 18.73) are a town-level Malmesbury pin (matches Malmesbury town center -33.45/18.73), NOT a surveyed plant boundary. Overlay correctly self-flags this as approximate, but it is not a verified plant location. ; Single-source risk on phase-level dates (Phase 1 commissioning ~May 2025, Phase 2 ~May 2026) — these come primarily from the SPS project page (owner/developer's own site).

Planning intel compiled from open-source data — not a tender document. Suggest a correction or add missing info →