sentences:  To date on 17 March 2009, 610 householders and 32 businesses had registered with Alice Solar City; 520 home energy surveys had been completed, and $1.5 million in financial incentives for energy efficient measures had been issued.Over 40 solar PV and 100 solar hot water systems had been installed (Centralian Advocate 2009e, p. 23).The completed solar technology installations are estimated to save 400,000 kWh per year, which equates to the average energy consumption of about 50 Alice Springs homes (Boon 2009, p. 4).