II. ENERGY SITUATION IN BANGLADESH Including islands and coastal areas, almost 75% of people of Bangladesh live in rural areas. By 2013 approximately, 59.6% of the total population was linked with the national grid where only 42% of people have access to electrical energy in rural areas. Mainly oil, coal and natural gases are used to produce electricity for big purposes. However, the non-conventional energy resources are also being used as the conventional sources are limited, becoming expensive and not good for our environment. A brief elucidation of different types of renewable energy sources used on these days are given below: -(a) Solar Energy Almost 3 million people are using Solar photovoltaic (PV)systems at the household-level, having a capacity of 122.2 MW (April 2014) as some NGOs and Private Organizations are implementing solar energy program to increase the awareness of using solar energy especially in rural areas. Islands and the coastal areas are their major goal. (b) Wind Energy At the coastal areas and offshore island strong wind regimes. This makes air a potential source of electrical energy source. Currently, 2MW wind turbines installed at Kutubdia and kaptai. (c) Tidal and Wave Energy Having 2-8 m tidal height ascend and descend, and greater height of waves at some of the coastal areas tidal and wave can contribute a lot in the energy sector in Bangladesh. Tidal currents can be projected surely within 98% accuracy into the future. But currently, their contribution is negligible. (d) Biomass and Biogas: In rural areas of Bangladesh, biomass source like rice husk, animal waste, crop residue, jute stick, wood is used for mainly in cooking. Biogases mainly from animal and municipal wastes are also used in those areas also for cooking. III.USE OF ELECTRICITY IN THE COASTAL AREA AND THE ISLAND: Statistics say that not more than 3 percent out of 10 million people living in the coastal zone and in most of the island have access to electricity presently. Providing electricity from the national grid in those areas is still considered as very inefficient. People living there mostly depend on wood and kerosene for cooking and lighting. In some areas, people use a diesel generator to get electricity for lighting and charging mobiles, besides using that generator in pumping water in the agriculture fields mostly. But the price of getting light, in this case, is very high. A survey of World Bank in 2000 shows that the cost of electricity from diesel generator was in the range from 15 to 32 Taka/kWh and usually the bill was collected on a daily basis at a rate of Taka 3 to 8 per lamp when the cost of diesel was 16 Taka/Liter. These days the price is much larger than that. IV. Bryophyllum pinnatum LEAF AS A SOURCE OF BIOMASS AT COASTAL AREAS AND ISLANDS: Bryophyllum pinnatum, a crassulescent plant, has been used for a long as herbal medicine almost all over the world for various treatments. It has some other names like air plant, love plant, miracle leaf, life plant, Zakham-e-hyat, panfutti, Ghayamari. It is an herb of about a meter in height, fleshy leaves with variable decussate. The lower parts of the leaves are usually simple or rarely compound with 8-12 and 6-8cm in size. Although this plant is distributed throughout the world but budding predominantly in the rain forest. It found widely in tropical Africa, India, China, Australia and tropical America, Madagascar, Asia and Hawaii. In South-Asia, this plant is cultivated in gardens and wild on the hills of North-Western India, Deccan and Bangladesh as it can be grown any kind of soil. Like this plant can easily grow in the islands and coastal areas all over and also in Bangladesh. Besides the verify used as a medicine, the leaf Bryophyllum pinnatumcontains some organic acids, like, mallic acid, amino acid, ascorbic acid, syringic acid, caffeic acid, iso-citric acid etc. and also some metals like copper, iron etc..The pasted leaf will allow the acids in it to solute in the water. Thus, it’ll make the water acidic. Now, if we place a pair of zinc and copper plates, electrons start to flow from zinc to copper plates after connecting by wires. Adding up the number of zn-cu pairs, we can increase the flow of electricity. This could be done by anyone who is aware of this simple technique.