送交者: HunHunSheng 于 2005-8-08, 13:43:24:

and how much to maintain it each year?

Bush signed new energy bill

• Is there a battery associated with the solar cell system? - peanut (4 bytes) 2005-8-08, 14:43:45
• 20K for a regular size house - JZ (0 bytes) 2005-8-08, 14:12:16
  • and how much can the market value increase after you install it - HunHunSheng (0 bytes) 2005-8-08, 14:15:40
    • rule of thumb for these add-ons is much less than what you spend. - Enlighten (4 bytes) 2005-8-08, 15:12:09
  • How much can it save each year assuming electricity or gas heats water now? - HunHunSheng (0 bytes) 2005-8-08, 14:14:53
    • These thing normally are not economically effective, meaning - Enlighten (322 bytes) 2005-8-08, 15:02:40
    • See here (from NYTIMES) - JZ (143 bytes) 2005-8-08, 14:58:07
      • This is Solar Electric System. - HunHunSheng (74 bytes) 2005-8-08, 15:07:07
        • that should be very cheap - i guess no more than $2-3000. - Enlighten (61 bytes) 2005-8-08, 15:09:56

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