DC-Coupled Solar Plus Storage: Results from the Field

DC-Coupled Solar Plus Storage: Results from the Field

• 1.
  500 kW 2,400kWh DC COUPLED Solar Plus Storage 1Dynapower Confidential DC-COUPLED MOST ECONOMICAL SOLAR PLUS STORAGE • LESS EQUIPMENT — TRANSFORMERS, SWITCHGEAR • MORE ENERGY — CLIPPING RECAPTURE, LOW VOLTAGE HARVEST • FACTORY INTEGRATION WITH CENTRAL INVERTER MANUFACTURERS — FURTHER COST REDUCTIONS
• 2.
  CLIPPING PROFILE MA SMARTProgram Simulated clipping based on historic weather data. 2 MW AC Inverter ILR: 1.5
• 3.
  DC-COUPLED CLIPPED CHARGEPROFILE Simulated clipping power profile based on historic weather data. 2 MW AC Inverter ILR: 1.5 DC Coupled Storage: 1,000 kW 2,000 kWh
• 4.
  FINANCIAL/TECHNICAL ANALYSIS MASSACHUSETTS SMARTPROGRAM 1,000 kW 2,000 kW2,000 kWh With the addition of DC coupled storage the customer will be able to capture 265,388 kWh of clipped energy per 2 MW system and 116,192 kWh of clipped energy on the 1 MW system. $1,496,866. ADDITIONAL REVENUE PER YEAR COMPARED TO AC-COUPLED STORAGE
• 5.
  MASSACHUSETTS SMART ESSADDER MA SMART Program 5
• 6.
  PV Array Capacity(kW STC) 3000 2700 PV Inverter kW AC Rating 2000 1000 ILR 1.5 2.7 PV Only kWh Production 4,451,127.19 2,739,453 PV Only PPA $ 0.1553 $ 0.1553 PV Only Revenue $ 691,260.05 $ 425,437.05 ESS kW 1000 500 ESS kWh 2000 1000 Storage Hours 2 2 ESS PPA Adder (MA SMART) $ 0.0363 $ 0.0247 PV kWh Clipped 334,032.13 874,390.50 % Clipping Recaptured 79% 30% Clipping kWh Captured 265,388.32 262,317.15 PV + ESS PPA $ 0.1916 $ 0.1800 PV + ESS Revenue (AC coupled) $ 852,835.97 $ 493,101.54 PV + ESS (DC Coupled) $ 903,684.37 $ 540,318.63 DC Coupled ESS Cost $ 1,200,000.00 $ 600,000.00 DC Coupled Additional Annual Revenue Compared to PV only $ 212,424.32 $ 114,881.58 DC Coupled Revenue Compared AC Coupled Revenue $ 50,848.40 $ 47,217.09 Clipping Revenue Per kWDC $ 16.95 $ 17.49 DC Coupled ROI (years) Compared to PV Only 5.65 5.22 DC-COUPLED SUMMARY ANALYSIS MA SMART Program