Energy Glance
Better yet, the 2e is scheduled to begin rolling off the Vista, California, assembly line this October for an as-yet-to-be-determined price between $25,000 and $40,000. Charge it overnight from your 110-volt home outlet, and it's claimed to have a range of 100 miles...in the carpool lane, if you wish.
Pie in the sky? Nope. The business model looks sound; nearly 4000 deposits have been placed (Robin Williams among the clientele), enthusiastic investors are locked in, and co-founders Steve Fambro and Chris Anthony have assembled a team that balances Detroit low-volume niche-production experience with California "anything is possible" attitude.
Putting solar panels on the roof can cost a homeowner tens of thousands of dollars up front. That’s a lot of cash in a tight market, even if the goal is clean, renewable energy.
With enough solar panels it is possible to cover all your electricity needs with PV, year round; the downside is that it requires a significant investment up front. Installing 8 square metres of PV panels, enough to sustain a family of four in the UK, plus storage batteries and accessories such as inverters to convert DC into alternating current, can cost tens of thousands of pounds and will take up more space than is available to most urban households. Until the cost comes down substantially, switching to a grid supplier that gets its energy from renewables may be a more realistic alternative - although it will not free you from the risk of supply interruptions.
A revolutionary device that can harness energy from slow-moving rivers and ocean currents could provide enough power for the entire world, scientists claim. 
