COMMUNITY SHARES. By investing in community 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 if you want to buy the minimum number of shares - 100 shares at £1 each. You can purchase more community shares by adding an additional amount to your investment on the next page.