TECHNICAL AND FINANCIAL COMPARISON

ENERGIESTRO is an economical solution. Its initial cost is moderate because it makes use of technologies from the automotive industry. Its operating cost is low thanks to its high efficiency.
The innovation resides in the integration of a high efficiency kinetic energy storage with a cogeneration system.
This energy storage enables the ENERGIESTRO set to operate independently from the grid, controlled by power demand, which makes it radically different from other cogeneration systems, controlled by thermal demand and unable to operate without the grid.

SOLAR CELLS	CONVENTIONAL GEN-SET
INVESTMENT :	INVESTMENT :	INVESTMENT :
40 000 € HT Mini	7 000 € HT	20 000 € HT
Lifespan:	Lifespan:	Lifespan:
Battery to renew every 2 to 5 years 5000 € HT In addition to the cost of the auxiliary gen-set.	Engine with a 20000 hours potential. to renew every 2 to 5 years 7 000 € HT	Engine with a 20000 hours potential. 20 years FlyWheel : + de 20 years
Engine operation:	Engine operation:	Engine operation:
occasional (auxiliary gen-set unit)	Continuous (about. 10.000 h/year)	Intermittent 10% (about 1.000 h/year)
Parasitic power loss:	Parasitic power loss:	Parasitic power loss:
20% (battery efficiency = 80% only)	More than 20%	2%
Maintenance	Maintenance	Maintenance
Cleaning and visual control of the panels Monthly	Engine with intervals of 1.000 H Monthly	Engine with intervals of 1.000 H Annual
Efficiency	Efficiency	Efficiency
15%	30%	Superior to 60% with the cogeneration
Annual fuel consumption	Annual fuel consumption	Annual fuel consumption
100 liters	4000 liters	1,000 liters 500 for Electricity 500 for Hot Water

Life cycle cost per kilowatthour :
SOLAR CELLS	1,0 € / kWh
Conventional Gen-set	1,5 € / kWh
	0,5 € / kWh

20 years cumulative Cost Comparison for 6 kW systems:

When compared to solar energy, ENERGIESTRO is always cheaper. When compared to a conventional gen-set, the return on investment is 6 years without cogeneration, and 2 years with cogeneration.

© ENERGIESTRO JANUARY 2013