COMMUNITY SHARES. By investing in shares you get full membership of the Small Wind Co-op with a projected 6.5% annual return averaged over 20yrs, an equal vote and the ability to use the electricity generated in your own home. You can buy as few as 100 or as many as 100,000 community shares. Click here to buy 10,000 community shares at £1 each. You can purchase more community shares by adding an additional amount to your investment on the next page.