Ulcerative colitis is a chronic, relapsing condition. Chronic means that it is persistent and ongoing. Relapsing means that there are times when symptoms flare up (relapse) and times when there are few or no symptoms (remission). The severity of symptoms and how frequently they occur vary from person to person.
Photovoltaics (PV) is the name of a method of converting solar energy into direct current electricity using semiconducting materials that exhibit the photovoltaic effect, a phenomenon commonly studied in physics, photochemistry and electrochemistry.
Solar Photovoltaics, or Solar PV for short, is a technology in which daylight is converted into electrical power. Solar PV takes advantage of energy from the sun to create electricity, that will operate electrical appliances and lighting. A Solar PV Cell is a solid state device that converts the energy of sunlight directly into electricity. 2  A Solar PV Survey is essential before a Solar PV installation can be carried out. 3  Solar PV Orientation must be optimised to maximise Solar Power production.