Sostratus Energy
The Sostratus Difference
Client case study · Food manufacturing facility
~627,000 kWh / yr · 150 kVA half-hourly supply
01Tariff optimisation
New supply partnership beats the prior broker and the incumbent.
02Fully-funded BESS
~840 kWh battery, zero capex, arbitrage + non-energy savings on top.
All figures exclude CCL & VAT.
Strand 1 — Tariff optimisation
Incumbent · SSE
33.13
p/kWh blended
£207,686 / yr
No broker – variable risk
Previous broker
30.73
p/kWh blended
£192,655 / yr
Multi broker quote
Sostratus
28.51
p/kWh blended
£178,714 / yr
Fully-inclusive · 0p broker fee
7.2%
vs previous broker
£13,941 / yr saved
13.9%
vs incumbent (SSE)
£28,972 / yr saved
Strand 2 — BESS optimisation (on top of tariff)
£19,000
Wholesale arbitrage
£12,000
Non-energy cost optimisation
£31,000
BESS value / yr
Total annual value delivered
Tariff saving vs incumbent + BESS optimisation
£59,972
per year · ≈ 29% of prior spend