necessary (for) · required

The craft has two massive solar panels, 7 meters each, that will provide the power it needs to travel 850 million kilometers from the sun.

I gave her just what she needed.

I thought that that's what we needed.

Officials from government and industry are also starting to recognize the potential of the Methane Capture Project. The U.S. Department of Agriculture is funding experimental on-farm sites in Mississippi and several other states. Some large poultry processors are launching renewable energy divisions to power their feed mills. And a fuel company is investigating the possibility of pumping chicken-waste methane instead of natural gas through its pipeline, and to use it to power some of the generators along the way.

The cargo craft will carry more than four tons of supplies, water, spare parts and experiment hardware for the station crew, including six new lithium-ion batteries needed to complete an overall update of the station’s electrical system.