The Speed finder allowed full metering.

Use with a digital SLR allows metering and composition by trial and error, and is effectively free, so is a popular way to try pinhole photography.

Inject the fuel - Fuel injection allows very precise metering of fuel to each cylinder.

A far simpler system is to eliminate the FIT, allow full net metering, and buy any net electricity not consumed each year at the same rate it is sold.

This allows much more accurate metering of fuel to the engine than is possible with mixers, improving economy and/or power while reducing emissions.

Ontario allows net metering for up to 500 kW, however credits can only be carried for 12 consecutive months.

Areas of British Columbia serviced by BC Hydro are allowed net metering for up to 50 kW.

New Brunswick allows net metering for installations up to 100 kW.

SaskPower allows net metering for installations up to 100 kW.

Utah allows net metering for residential systems up to 25 kW and up to 2 MW for non-residential users.